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Table of Contents
Is Indigo powder safe for hair?
It is very much safe to use as it is derived from a plant and so chemical-free. Indigo Leaf Powder is an alternative to Hair Dye for all and mostly with the people who are sensitive and allergic to Hair Dyes. A Base coat of Henna and a Second Coat of Indigo gives a lasting Natural Black Color to the Hair.
Which is best indigo powder for hair?
- The Forest Herbs Natural Care From Nature Organic Indigo Leaf Powder for Hair Colour – 100Gms*
- Kama Ayurveda Organic Indigo Powder – 100 GM (Blue_Free Size)*
- Organic Essentials Indigo Powder For Hair & Beard Dye – Black (250 Grams)*
What is organic indigo powder?
Wild Organic Indigo Powder is a natural hair colour that covers grey hair and prevents premature greying naturally. It makes hair silky and can be use as a natural hair pack or natural hair dye without the need for harmful chemicals. Key Features: 100% pure and natural indigo powder for hair.
Can indigo reverse grey hair?
Apart from being used as a natural hair dye in the powder form, indigo leaves boiled in coconut oil can be used as a home remedy for greying hair. Regular use of this concoction can not only reverse but prevent the greying of hair in the long term.
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What is indigo powder?
The blue dye is embedded in the nutrient content of the indigo leaves. The compound responsible for the coloring effect is called glycoside – a combination of glucose and indoxyl. The dye is made by soaking the leaves in water and fermenting them. Once the glucose is absorbed by bacteria, indoxyl (white indigo) is released, which further oxidizes to a rich blue dye. In making the powder, the leaves are partially fermented, sun-dried to a crunchy texture, and then powdered.
Before we get into the details, let’s look at some of the benefits of indigo powder for hair…
Benefits of Indigo for Hair
1. Indigo powder is a natural hair dye
As a natural hair dye, the indigo powder can be used to replace artificial hair dye. The herbal nature of indigo powder is gentle on your hair and doesn’t contain harmful chemicals like ammonia and peroxide.
2. Indigo Leaf Oil for Gray Hair
Aside from being used as a powdered natural hair dye, indigo leaves boiled in coconut oil can be used as a home remedy for graying hair. Regular use of this concoction can not only reverse hair graying, but prevent it in the long term.
3. Indigo leaf oil as a hair growth treatment
Indigo Leaf Hair Oil can also be used as a hair growth treatment. Regular massage with indigo leaf oil can help fight scalp infections and stimulate the roots to encourage new hair growth.
4. Indigo leaf powder home remedy for dandruff
Used as a hair pack, indigo powder can keep dandruff-causing scalp infections at bay. Even when used as a hair oil, regular scalp massages can nourish your scalp and keep dandruff to a minimum.
5. Indigo hair pack for dry hair
One of the best natural conditioners on the market, indigo hair packs can be used to treat dry and brittle hair ends. This also applies to Indigo hair oil, with regular use you will get soft, smooth and bouncy hair.
How to prepare indigo hair dye
Preparing an indigo powder paste for hair is easier than preparing a henna hair pack. Measure out the amount of powder needed for your hair as once indigo powder is mixed with water it cannot be saved for a second use. The standard measurements are 40 – 50 grams for short hair, around 80 grams for shoulder length hair and around 150 grams for long hair.
Place the required amount of indigo powder in a non-metallic container – as a rule of thumb, glass bowls are considered containers for mixing hair dye. Add warm water and mix well to form a thick paste. Allow the mixture to soak for 20-30 minutes, after which the indigo powder will begin releasing the dye. You will know when to use it as the paint will pool at the corners of the bowl.
A step-by-step guide to applying indigo hair dye
Indigo hair color is best used after a henna hair treatment. You could also mix the indigo powder into the henna powder, which will give you a dark red tint. However, we recommend that you do this separately. It is recommended to do the indigo hair treatment a day after dyeing your hair with henna powder for an inky black color.
Step 01: Before you start the paste, brush out your hair to make sure there are no tangles or knots in your locks. Put on an old t-shirt (that you’re happy to ruin) and a pair of disposable or plastic gloves to avoid staining your hands and nails.
Step 02: Separate your hair into several sections and start applying the color. Apply the paste with a coloring brush and massage in with your hands. Once you have covered all sections use the leftover paste to massage your scalp which will cover any remaining gray roots and nourish the scalp.
Step 03: Once your head is covered with the color, use a plastic cover or a shower cap to avoid further oxidation of the hair color. Leave it on for two to three hours and wash off with clear water. Do not wash with shampoo as it can wash out the dye. Wait 48 hours before using shampoo and conditioner on your hair. Air dry your hair to lock in the dark black color and prevent moisture loss.
Tips on using indigo powder for hair
Add a pinch of salt to the indigo powder paste to release the dye faster and better.
Always apply indigo hair dye to clean hair. A greasy mane can inhibit the dyeing process.
While you can add other ingredients like egg and honey to the hair mask, it might hinder the coloring process.
If you don’t like the red color of a henna treatment, you can do the indigo dye the same day. However, make sure your hair is properly washed and dried before starting the indigo treatment.
Always check the quality of the indigo powder you use for the dye as the market is full of inferior products.
FAQs on indigo powder
1. Are there any side effects of indigo powder?
A. There are no side effects of using the indigo powder for hair. But as is common with other natural ingredients, some people may be allergic to it. Therefore, if you are using it for the first time, do a patch test to rule out an allergic reaction.
2. Can you leave indigo powder in your hair overnight?
A. As mentioned above, indigo powder takes three to four minutes to release color and saturate your hair. After that, your hair can no longer absorb color. So leaving it overnight will not bring any additional benefits and can dry out your hair and cause breakage.
3. How long does the indigo hair dye last on your hair?
A. It depends on each individual. Coloration typically lasts 8-12 weeks depending on hair porosity, shampooing frequency, hair care and styling routines.
4. What is the best way to store indigo powder?
A. Proper storage of indigo powder is to avoid exposing the powder to air. Open the packaging when ready to use and store in an airtight container in a dry, dark place.
What are the side effects of indigo powder on hair?
There are no side effects to using indigo powder for hair. But like with any ingredient some might experience indigo powder allergy but this is very rare. Some of the symptoms of indigo powder allergy are itchiness, headache and dizziness. If you experience any of these symptoms stop using indigo powder.
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Indigo Common Names:
Indigo powder is called Indian Indigo in English, Avuri or Neeli in Tamil, Neeli Chettu in Telugu, Neela Amari | called Neelayamari in Malayalam, Neelini | Neela in Hindi, Neeli in Kannada, Neel in Marathi, Wasma in Arabic and Neel in Urdu.
What is indigo powder?
Indigo powder is the powder extracted from the indigo plant. Indigo is a small shrub that grows to around 1 to 2 meters tall and produces beautiful pink flowers. The indigo plant has wonderful medicinal uses and all parts of the plant are used medicinally. You can recognize the indigo plant by its leaves and flowers.
Although indigo is primarily known as a natural dye, it also has other amazing benefits for hair. Indigo is mainly used in the form of hair oil to stimulate hair growth and in the form of hair packs for coloring the hair.
For coloring, it is applied after henna. Henna turns hair reddish-orange and indigo dyes hair dark blue, and together they create a natural black color.
If you want a black color make sure to use indigo after applying henna to ensure you get a dark color. If you want a dark red tint, you can mix both henna and indigo together and apply.
Benefits of Indigo Hair:
1. Indigo Powder For Premature Graying Hair:
Indigo leaf is an amazing home remedy for premature graying of hair. Regular use of indigo leaf hair oil will reverse and greatly prevent hair graying.
2. Indigo Powder For Hair Growth:
Indigo leaf hair oil which is made from the leaves is amazing for hair growth. It prevents infections of the scalp and stimulates new hair growth with regular use. To stimulate hair growth, gently massage the oil into the scalp daily.
3. Indigo Powder For Dandruff:
Hair oil made with indigo leaves is also a very good remedy for dandruff. It greatly reduces dandruff and if used from a young age will greatly prevent dandruff.
4. Indigo Powder Hair Color:
A key benefit of indigo to hair is that it acts as a natural hair dye. In my personal opinion, it’s nature’s gift given the side effects of chemical hair dye, ranging from increased sun sensitivity to skin allergies.
5. Indigo Powder For Dry Hair:
Indigo leaf hair oil is one of the best conditioners that softens your hair very, very well. If you suffer from dry, brittle hair, I would suggest using Indigo Leaf Hair Oil regularly. Within days of regular use, you will find your hair smooth and soft.
How is indigo powder hair dye made?
The blue dye is naturally present in indigo leaves in the form of glycoside (glucose and indoxyl). Once the leaves are soaked in water and fermented, the sugar (glucose) is consumed by the bacteria, which releases the indoxyl. Indoxyl is the precursor of the dye indigo and is called white indigo. When indoxyl oxidizes, we get a blue dye.
To make Indigo Powder Hair Dye, indigo plants are harvested and the leaves collected separately. Then they’re partially fermented to release the coloring agent, sun-dried until crisp to remove any moisture, and then powdered.
Indigo Leaf Hair Oil:
To make indigo oil, indigo leaves, amla, and bhringraj are boiled together in a pan until the water has evaporated and the sizzling sound stops.
These 3 herbs also form the basis of the famous Neelibhrigraj oil, which is very popular to treat premature graying of hair. Neelibhringraj oil also contains additional ingredients such as buffalo milk, cow milk and coconut milk.
But in my personal experience, hair oil made from just the three herbs is just as effective in stimulating hair growth and preventing premature hair graying.
Side Effects Of Indigo Powder:
There are no side effects of using indigo powder for hair. But as with any ingredient, some people can develop an allergy to indigo powder, but this is very rare.
Some of the symptoms of an indigo powder allergy include itching, headaches, and dizziness. If you experience any of these symptoms, stop using indigo powder.
The other side benefit is that using indigo as a hair dye can be messy and time-consuming, but it gets easier once you start using it regularly.
We also get a lot of fake indigo powder in the markets. When we use fake indigo powder, there are many side effects, including severe itching and headache.
Where to buy indigo powder for hair
We can get natural organic indigo powder at most herbal shops in India. If you live in Tamil Nadu, you can get Avuri Leaf Powder in Nattu Marundhu Kadai. You can also buy high quality indigo powder online.
If you buy indigo powder, make sure it’s original. To make sure it’s original, take a small piece of indigo powder in a bowl and mix it with water to get a paste. Wait 15 minutes, the dark blue dye should bleed out, otherwise it is fake.
When buying, also pay attention to the color, it should be green and not smell of chemicals.
Try not to buy cheap indigo powders and also be wary of buying products like black henna that contains henna, indigo and harmful chemicals to get black color instantly.
Frequently asked questions about dyeing hair with indigo powder:
How long should I leave indigo in my hair?
This depends on the process. If using indigo in a two step process as mentioned below I would suggest leaving the indigo paste on for 2 to 3 hours for best results. If you combine and use both henna and indigo together (it’s not as effective as a two-step process), it’s recommended to leave it on for long periods of time.
Can I leave indigo in my hair overnight?
You don’t have to leave it on overnight, the dye will fix on the hair within 3 to 4 hours. Also, applying wet paste like indigo on hair and going to bed is not a good idea as it can cause headache and also can not help you sleep better.
How do you rinse indigo out of hair?
Indigo is easy to rinse out compared to henna powder. Rinse with clear water for best results. Try not to use shampoo for the next 3 days. If you use shampoo immediately after applying indigo, it will wash out the dye very quickly.
Is Indigo Bad For Your Hair?
Indigo is a natural product derived from the indigo plant and real indigo hair dye will never harm your hair. It will only make it shiny and strong. It is also a good alternative to chemical hair dyes that cause many allergies.
How Long Does Indigo Hair Dye Last?
The duration varies from person to person. For some it lasts a good 8 to 12 weeks, for some it washes off sooner. It depends a lot on how porous our hair is.
How to glue indigo to hair?
Some people’s hair does not take the indigo dye well. If this is the case, mix in a small pinch of salt while mixing indigo powder with water, it will help set the dye. Also, only apply indigo paste to clean, dry hair.
Oiling Hair After Indigo:
It is best to oil hair 48 hours after indigo hair dye application. Also try not to oil your hair before applying indigo dye as this will prevent the dye from sticking to the hair.
How Indigo Lasts Longer:
As already mentioned, only wash your hair with shampoo after 3 to 4 days. Also try not to wash your hair daily, if you wash your hair daily the color won’t last longer and try to use only mild shampoos for best results…
2 ways to use indigo for hair growth and as a hair dye:
a. How To Make Indigo Hair Oil For Hair Growth:
1. To make indigo hair oil, take 1/4 cup of indigo leaves. Try using fresh indigo leaves for the best results.
2. Wash and take 1/4 cup of bhringraj leaves as well. Bhringraj is an amazing herb that promotes hair growth and stops hair loss instantly. Here you can read in detail about bhringraj.
3. Place the indigo leaves, bhringraj leaves and amla in a blender. Grind to a coarse paste without adding water and store separately. Coarse grinding helps the herbs release their essence into the oil faster.
4. Take three fresh amla, also called Indian gooseberries, in a mortar and pestle and pound them to break them up and remove the inner seed from them.
5. Take the crushed amla and, without adding water, grind it into a coarse paste in a blender.
4. Now heat 1 cup of unrefined coconut oil and add the ground paste. Continue heating the oil until the hissing sound stops, indicating the water content has completely evaporated.
Once the water has evaporated, turn off and strain. If you turn off before the crackling stops completely, the oil will quickly go rancid. Your Hair Growth Oil is ready to use!
Henna Indigo Hair Dye Recipe for Gray Hair – 2 step process
1. Application of henna:
Take 1/4 cup of henna powder in a bowl. Typically, 40 to 50 grams of henna powder is enough for close-cropped hair, 70 to 80 grams for shoulder-length hair, and about 150 grams for long, thick hair.
Prepare black tea without adding sugar by boiling water with black tea, straining and allowing to cool. Now add the prepared black tea to the henna powder and mix to a smooth paste without lumps.
Once you’re comfortable using henna, you can also experiment with adding ingredients like lemon juice, apple cider vinegar, or coffee grounds. Each ingredient gives a different shade. Also, if you find that henna paste is drying out your hair, you can add a teaspoon of coconut oil to the mixture.
Cover with plastic wrap and leave the henna mixture on overnight. The next day the henna paste would have changed color, mix well. Apply a little coconut oil to your hairline to prevent skin from staining. Also make sure to wear gloves if you don’t want to get stains on your hands. Wear an old dress while applying henna to avoid staining and drape with an old towel.
Now use a comb to divide your hair into small sections and secure them with a clip. Now work one section at a time, applying the henna mixture generously from roots to ends, either with a brush or with your gloved hands. After application, pin again, work away all sections at once.
If the paste is too thick it will be difficult to apply, and if it’s too thin it will drip all over you, so make sure to mix it properly. Once you have applied the henna paste, take the remaining henna and apply it all over your head. This will ensure that every part of the head is covered in henna.
Cover your head with a shower cap and leave it on for 4 to 5 hours. Some people might get a headache from leaving henna on their hair for a long time, for them I would suggest adding a few drops of eucalyptus essential oil to the mixture.
Wash your hair with clean water after 5 hours. Do not shampoo, it may take some time to remove all of the henna paste from your hair, but rinse completely and dry your hair. If you use indigo, you can apply it to damp hair yourself.
2. How To Apply Indigo Powder For Hair:
a. Take the required amount of indigo powder in a non-metallic beaker as it is best not to use metallic containers when mixing dyes. I usually use glass containers.
Usually 40 to 50 grams of henna powder is enough for close-cropped hair, 80 grams for shoulder-length hair and about 150 grams for long hair.
b. Add enough warm water to form a thick, spreadable paste. You can use the indigo hair as early as 15 to 30 minutes after mixing. After 15 to 30 minutes of soaking, indigo will start releasing its dye, you can see it in the corners of the prepared paste. Apply to clean hair after applying henna. Follow all the steps I gave for applying henna paste.
Wait 2 to 3 hours before washing it off in plain water. You can also add a pinch of salt when mixing, salt will help indigo powder release the dye faster.
After 3 hours, simply wash the indigo paste with clear water. Do not use shampoo, you can shampoo after 48 hours. Dry your hair and your hair will be dyed dark.
REMARKS:
Can I mix indigo and henna together?
There is just one condition to this, for the first time you use henna and indigo on your hair, you need to follow the two step process because indigo needs a layer of henna to work better but from next time, since your hair already has layer of henna from first application, you can definitely just mix these together …
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Have you tried using organic henna and indigo for gray hair?
I know I write a lot about how to cover up your gray hair naturally.
I have a DIY hair oil to cover gray hair, a DIY hair mask to give your hair red hues while conditioning your hair, and a hair conditioner to help you cover gray hair naturally.
But that’s because I’ve had prematurely gray hair since I was young.
I usually write about how to cover my gray hair naturally. But today I’m writing about how my mom covers her gray hair naturally with a mixture of henna and indigo. And mind you, my mother has the long, jet black and thick hair. She is actually the inspiration behind this hair blog..
Now let me share how she naturally covers her gray hair with a blend of organic henna and indigo. She has her own recipe to make this indigo and henna hair mask and I thought I’d definitely share it with you guys.
So let’s start.
Ingredients for making a henna and indigo hair mask
To make this hair mask, you will need a few other things besides henna and indigo.
They are needed to make a hair mask
henna powder
indigo powder
water
Yogurt or lemon juice (helps release dye from henna)
Salt (helps release dye from indigo)
Iron Wok (Optional, but it helps achieve a darker color)
For the preparation and application of the hair mask you will need
Shower cap (to protect the mask from excessive drying and dripping)
Old T-shirt (As this is a messy process, wear old clothes)
Towel (to protect your clothes from drips)
Brush (to apply the hair mask)
Comb (For dividing sections while applying mask)
Gloves (to prevent discoloration of your hands)
Vaseline (To apply around face and décolleté to avoid staining)
Step-by-step process for making this henna and indigo for gray hair
1. Take an iron wok and add 200g of henna powder. Now add 1 tablespoon of lemon juice or yogurt to the henna and mix well. This is because lemon juice or yogurt contains vitamin C, which contributes to better dye release from henna and helps you get a darker color from the first application.
2. Now slowly add warm water to the henna and keep mixing until you reach a yogurt-like consistency or form a thick but smooth paste. Store this henna mixture overnight.
Henna takes at least 8 hours to release dye.
Use a hair brush or spoon to mix. Avoid using hands as it will immediately soil your hands.
3. The next morning, simply stir this soaked henna paste once and now add 200g of indigo powder along with a pinch of salt and mix well. Salt helps indigo release dye, giving you a darker color. If you find the paste is very thick, you can add water to adjust the consistency to your liking.
4. Your henna indigo gray hair mix is ready to use.
Ratio of henna and indigo
If you want to achieve jet black hair, keep the consistency of henna to indigo the same i.e. 50:50. However, if you want to achieve a brown color rather than black, keep the henna to indigo consistency at around 2:1.
You May Also Like: Is Henna Good For Your Hair Or Is It Bad? Pros and cons of using henna for hair
Add these ingredients to henna and indigo to control hair loss, trigger hair growth while deeply conditioning your hair – my mom’s secret recipe <3 As I mentioned above, this is my mom's recipe and she has jet black and thick hair. She rarely has the problem of hair loss or dandruff. So here's the secret. The ingredients she adds to this hair mask. Optional, but using fenugreek on hair helps condition hair and effectively controls hair fall. You can also add homemade fenugreek oil. If you are not aware of this then you are definitely missing out on something in your hair care routine. Fenugreek seeds are known for deep conditioning of your hair trigger hair growth control hair loss fight against dandruff Treatment of split ends Gives your hair volume and shine makes hair silky and soft. Fenugreek seeds are super easy to find at any supermarket, grocery store, or even on Amazon. We usually grind these seeds to make fenugreek seed powder. Add just 1 teaspoon of this powder or fenugreek oil to your henna indigo mixture just before applying. Last update on 07/24/2022 / Affiliate links / Images from Amazon Product Advertising API 2. Onion Seed Powder In India it is popularly known as Kalonji. (Optional, but it will trigger your hair growth and help hair grow back faster.) Onions help trigger your hair regrowth. So the hair that you lost at some point, onions help in regrowing that hair effectively. Along with this, it also helps Treatment of scalp infections Treatment of scalp conditions such as psoriasis triggers hair growth reduces hair loss. Onion seeds are super easy to find at any supermarket, grocery store, or even black seed oil on Amazon. We usually grind these seeds to make onion seed powder. Add just 1 teaspoon of this powder to your hair mask right before application. Last update on 07/24/2022 / Affiliate links / Images from Amazon Product Advertising API 3. Castor Oil Castor oil is the best hair oil ever. (Optional, but makes hair extra soft and thick) It helps in thickening of your hair combat hair loss Give your hair extra volume make hair super soft deeply nourishes your hair trigger hair growth. Castor oil is really easily available at any supermarket as well as on Amazon. Simply add 1 teaspoon of castor oil to your henna and indigo hair mask 5 minutes before use. Last update on 07/25/2022 / Affiliate links / Images from Amazon Product Advertising API 4. Vitamin E Oil (Optional but will help add extra nutrients to your hair) Vitamin E oil helps Give your hair extra nutrients makes the hair super soft and combable Repairing dull and lifeless hair Promotion of hair growth. I usually buy Evion Vitamin E capsules from a local store. You will definitely find these on Evion Vitamin E capsules. Add oil from these capsules to your hair mask 5 minutes before applying this hair mask. I usually add oil from 3-4 capsules at a time. Last update on 07/24/2022 / Affiliate links / Images from Amazon Product Advertising API 5. Tea or Coffee (optional but helps to get darker color) I love using tea in my hair conditioner to naturally darken hair color, but tea and coffee also help Achieving a darker hair color Condition your hair Repairing lifeless hair. You can make tea or coffee as you like. Strain it and use it to soak henna and make a thick paste instead of water. 6. Hibiscus Petals (optional, but darkens hair color and fights hair fall) If you're a regular HCS reader, you may already know what a huge fan of hibiscus flowers I am. I use it in my DIY hair oil to cover gray hair as well as homemade hibiscus hair oil. This is due to the hibiscus flower darkens your hair color treats dandruff gives life to lifeless hair fights hair loss triggers hair growth makes the hair silky and combable. To blend hibiscus petals into your hair mask, simply gently wash the petals and then put them in your blender and add some water and make a fine paste. Add this paste to your hair mask 5 minutes before applying your hair mask. Dried Edible Hibiscus Flower This packet contains 5 ounces of delicious dried hibiscus flower Kosher, gluten free hibiscus Last update on 07/24/2022 / Affiliate links / Images from Amazon Product Advertising API 7.Rose Petals (Optional but adds life and health to your hair) I love using rose petals in my hair. I have used it before to make my hair smell nice, make hair masks for dry hair, make rose water for hair and many more DIYs. That's because it treats dandruff gives life to lifeless hair fights hair loss triggers hair growth makes the hair silky and combable. Add fresh or dried rose petals to the grinder and add this mixture to your henna and indigo hair mask just a few minutes before applying this hair mask. You can also add rose petal powder instead. Last update on 07/24/2022 / Affiliate links / Images from Amazon Product Advertising API 8. Fresh Amla Pulp or Amla Powder (Optional but will darken your hair color) We all know that Amla/Indian Gooseberry is widely used in Indian hair care. That's because Amla deep hair darkens hair color makes hair healthy and strong fights dandruff and hair loss. If you have fresh amla, just grind the pulp and add it to this hair mask. Or you can add amla powder or amla juice or even a teaspoon of homemade amla oil. Add a teaspoon just 5 minutes before using this henna and indigo together. Last update on 07/24/2022 / Affiliate links / Images from Amazon Product Advertising API 9. Triphala powder (Optional but triggers hair growth) If you haven't heard of it, then you're definitely missing out on so much. Triphala powder is an Ayurvedic natural herb for hair growth. It will accelerate your hair growth like no other ingredient that makes your hair super voluminous and grows faster. Add this just 5 minutes before using the Henna and Indigo Hair Mask. Last update on 07/24/2022 / Affiliate links / Images from Amazon Product Advertising API 10. Fresh Aloe Vera Gel (Optional, but intensively nourishes your hair) We all know the benefits of aloe vera for hair and skin care. It would have been wrong if we didn't add these to our hair mask. Aloe Vera is known for deep hair treatment of dandruff Promotion of hair growth Make hair silky and combable and what not. Simply extract the gel from aloe vera leaves. Grind it in a grinder with little water and add it to your henna and indigo mask just 5 minutes before applying this mask. *I usually put all these ingredients in the grinder and grind them together to form a paste and add this to the henna and indigo hair mask. Last update on 07/24/2022 / Affiliate links / Images from Amazon Product Advertising API How to use henna and indigo on gray hair Before you start using this hair mask, make some preparations. 1. Apply petroleum jelly along your face line and ears to prevent discoloration. Wear your gloves and untangle your hair. 2. Now part small sections of your hair and apply this mask with the hairbrush. Apply from roots to ends of hair. Be sure to carefully and generously cover each strand with this mask. Cover the entire length of your hair. 3. After you are done applying the hair mask and covering all your hair, tie it up with a rubber band or hair clip. If you have long hair, choose a bun. 4. Cover your hair with a shower cap. This will ensure your hair mask doesn't drip or dry out, while also allowing the warmth of your scalp due to the shower cap to help lock in the hair color better. Don't leave it undone or your hair mask will dry out and it will be a good test of patience to remove this hair mask from your hair. 5. Leave this mask on for 2 hours and then wash your hair with water only. Make sure you don't use hot water. This causes your hair color to fade and your hair to remain a bit dry. 6. Use a mild shampoo or an SLS-free shampoo to completely wash off the hair mask. 7. Now just use your favorite conditioner and you're ready to show off your naturally colored silky hair. What is the two step henna and indigo process and why don't I recommend it? If you're familiar with henna and indigo, you've probably heard that people use a two-step process for enhanced effects. Now what is the two-step henna and indigo process? Usually, people apply this hair mask in two steps. Step 1: Soak in henna by mixing it with 1 tsp yogurt and warm water. Leave overnight and apply the next morning. Keep the henna hair mask for 2 hours and then rinse off with water. Step 2: Don't shampoo after henna, just mix indigo and water and add a pinch of salt and make a thick paste. Apply this immediately and leave it on for 1 hour and then rinse off with water. If desired, you can use a mild shampoo and conditioner. *I do not recommend this step because To be honest, it's just too much work there are not much improved results. Instead, you can absolutely mix henna and indigo together. This will help you save a lot of energy and time. Plus, you absolutely get the results when you mix the two together as well. There is only one condition for this, if this is your first time using henna and indigo on your hair you must follow the two step process as indigo needs a coat of henna to work better but from next time as your hair already has one Layer has of henna from the first application, you can definitely just mix and match these together. Like me. Where to buy the best organic henna and indigo powder for hair? I couldn't find indigo powder in any local store in my town. So I usually get mine from Amazon. Last update on 07/24/2022 / Affiliate links / Images from Amazon Product Advertising API Last update on 07/24/2022 / Affiliate links / Images from Amazon Product Advertising API Notes to watch out for Always do a patch test before using this or any other DIY or product for the first time. Never apply henna and other ready-made hair colors without a gap of at least 2 months between the two. This is because you might unknowingly become allergic to others if you have used the other. Always do a patch test first. Use this hair mask once every 15 days until desired color is achieved. Then you can use it once a month and then limit this hair mask to once every three months. Quick additional tips on using henna and indigo for hair If you want a dark brown color and not black, add 75% henna and 25% indigo. The lighter the desired color, the lower the amount of indigo. For some people, the two-step method works better, and indigo provides better color after henna. For me, the one-step method worked best. Give it a try to find out which method works best for you. Indigo is not harmful. It is actually a completely natural dye like henna and is derived from the leaves of the plant. over to you I hope you find this post useful. This is a completely natural way to cover up your gray hair. It takes at least 4-5 applications to fully cover your gray hair, but you will see the difference for yourself from the first time. Well, the secret to my mother's beautiful jet black and healthy hair is out. I hope you take advantage of this Henna Indigo Hair Mask recipe and benefit from this DIY. Have a nice day!
Does indigo thicken hair?
Promotes Hair Quality
Fret not, regular use of indigo powder helps to sustain hair and make it bouncy, lustrous, and thicker. Apart from this, it prevents scalp infection and using it with coconut oil nourishes the scalp with vital nutrients and makes the mane stronger and healthier.
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How is indigo powder obtained?
Indigo powder is made by soaking the leaves of the plant in water overnight, which turns the water into a sluggish blue mixture. This mixture is then sun dried until all the leaves are completely dry and crispy. Once the leaves are dried, they are ground to get the indigo powder. This simple process of turning green leaves into a bright blue dye through fermentation is just wonderful! Since no chemicals are added in this process, the obtained indigo dye is completely safe and valuable for the hair.
Well, natural hair colors give your mane the tone you want without damaging it and promote healthy hair. Read on to learn about some of the known benefits of using indigo powder in your hair care routine.
Also Read: Henna for Healthy Hair: Fantastic Benefits of This Herbal Miracle for Long and Shiny Locks
Benefits of Indigo Powder
Prevents hair loss
Indigo powder works amazingly well for anyone suffering from hair loss. Mixing indigo powder with hair oil and gently massaging the mixture on the scalp strengthens the hair follicles and prevents hair loss. Regular use of an indigo hair pack also treats hair fall and restores hair volume and growth.
Eliminates dandruff
Applying indigo powder helps get rid of oil and dirt on the scalp. It also prevents the scalp from becoming greasy, dry or flaky, which commonly causes dandruff. Regular use of indigo powder can help prevent excessive dryness and itching on the scalp and reduce the risk of all types of fungal infections.
Promotes hair quality
Constant exposure to pollutants, overuse of heaters, or harsh chemical dyes can leave hair looking dull and brittle. Don’t worry, regular use of indigo powder will help maintain hair and make it bouncy, shiny and thicker. Aside from that, it prevents scalp infections and using it with coconut oil provides the scalp with vital nutrients and makes the mane stronger and healthier.
Soothes the hair
Indigo powder not only improves hair color but also soothes the scalp and hair follicles. It offers a cooling and refreshing sensation that relaxes you and soothes your body and mind.
Also Read: 5 Essential Summer Hair Care Routines to Follow
Treats premature graying of hair
Indigo powder is a safe natural remedy to reverse premature hair graying and give hair a natural black color. Using chemical-based dyes can accelerate graying and cause the hair to lose its pigment. Also, with natural coloring properties, indigo powder strengthens hair follicles and is safe for all hair types. Additionally, mixing different proportions of indigo powder with henna can give you a range of attractive shades like brown, light cherry brown, and mahogany, to name a few, without damaging the hair.
How to use indigo powder?
Since indigo powder is a blue dye, applying it directly to the hair leaves a bright blue tint. So to get darker shades like brown or black you need to prime the hair with a henna treatment before using indigo powder.
To dye your hair black, follow the steps below:
Step 1 – Treatment with henna.
Soak the henna powder in a bowl of black tea or black coffee overnight
Add yogurt or egg for extra conditioning
Apply the henna paste to clean hair and leave on for 45 minutes
Rinse thoroughly with water, do not use shampoo
Step 2 Treatment with indigo
How long should we keep indigo on hair?
Next, mix some indigo powder with warm water in a bowl, let it sit for 10-15 minutes, and work it into your hair with your hands. Finally, wrap your hair and let the indigo sit for 1 hour before washing it out. For more tips from our Cosmetology co-author, like how to dye your hair with henna, read on!
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License: Creative Commons
<\/p>
<\/p><\/div>“} 1 Buy or make henna. You can make your own henna or save yourself time by buying henna from a grocery store in the Middle East or India. But enough henna to make your 200g is usually enough for shoulder length hair If you want special henna you may need to see a henna artist You can make your own henna or you can save yourself time by buying some from a Middle Eastern grocery store or buy in India But enough henna to cover your hair 200g is usually enough for shoulder length hair If you want specialty henna you may need to visit a henna artist.
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License: Creative Commons
<\/p>
<\/p><\/div>“} 2 Prepare the henna. If you have light hair, you must use henna as a base. Put a small amount of henna in a bowl. Pour a little hot water into the bowl. Then mix in some lemon juice or vinegar. Stir this mixture until it becomes thick. Add liquid until it is a creamy thickness. Once thick enough, you should wrap the bowl with plastic wrap
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License: Creative Commons<\/a>
<\/p>
<\/p><\/div>“} 3 Allow the henna to cool for a few minutes before using it. You want the henna to be warm when you apply it to your hair, but not hot. Take it After a few minutes, remove the plastic wrap from the bowl and check that the henna is no longer hot.
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License: Creative Commons<\/a>
<\/p>
<\/p><\/div>“} 4 Apply cream to your ears and hairline to protect your skin from stains. You don’t want henna to get on your face or ears while you’re doing your Dyeing Hair Any type of thick cream or conditioner will work.
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License: Creative Commons
<\/p>
<\/p><\/div>“} 5 Apply henna to your hair. Do this in sections, dividing your hair into three even sections. You want to apply a large amount of henna paste to your hair. This should be done it be thick that it reaches the scalp.
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License: Creative Commons
<\/p>
<\/p><\/div>“} 6 Cover your head. Once you have applied a significant amount of henna to each section of your hair, wrap plastic wrap around your head. You should not remove this wrapping for two to four times through will ensure that your hair fully absorbs the henna.
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Can I oil my hair after indigo?
Indigo likes an alkaline environment and it seems to help the indigo work better. 7. There should not be any substance on your hair which may block or prevented the colour from bonding with the hair – e.g. residue of conditioner, styling product, oil, or heat protective serum.
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How to Use Indigo Powder for Hair – Indigo dye as a natural hair dye
Our organic indigo, the dried, ground leaves of the plant Indigofera Tinctoria, is a purely organic gift from nature for coloring hair. It can be used in conjunction with organic henna (henna treated hair) to create a variety of shades from black to brown to auburn or used alone to darken brown or red hair.
Some people get fantastic results and can even get a black tint like the customer’s photos below showing her white roots going from white to red with henna powder and then red to black with indigo.
Every hair is different
Some people’s hair is porous and therefore easier to dye and keeps hair longer than others. Some people’s hair can be very colorfast and produce a lighter color. Certain Asian hair types can be very resistant to hair dye. Hair on the temples can be more resistant to dye and will not accept color as much as the rest of the hair.
If your hair is porous it dyes easily and you can get away with a shorter hold time, while with resilient hair you follow all the rules and tick all the boxes and may need to leave the color hold longer.
The only way to know beforehand how your hair will take the Indigo Paste color is to test strands first.
Red henna is usually good for all hair, but indigo isn’t good for some people’s hair when it’s resistant.
The following tips will help indigo take better care of your hair.
Indigo hair dye tips, do’s and don’ts
1. Indigo should be mixed with lukewarm (no more than 50°C) water to the consistency of yoghurt.
2. It is best not to mix indigo directly with an acidic liquid or with a lot of amla powder, as the acid may inhibit the indigo’s dye release.
3. If you are trying to get black hair, you can add 1 teaspoon of salt to 100g of indigo.
4. Once the indigo is mixed with liquid, it should be used immediately and not left, as it will deteriorate and lose its coloring ability. If it takes a long time, more than half an hour, to apply the indigo paste to your hair, it is best to mix up as much indigo as you can apply in half an hour and then mix in a fresh amount of indigo for the rest of your hair.
5. Apply to clean, dry hair. It’s okay if your hair is a little damp as long as it’s not too wet. If it’s too wet, it could dilute the paint.
6. Some people find it helpful to rub a few spoonfuls of baking soda into their hair before applying indigo paste. Indigo likes an alkaline environment and it seems to help the indigo perform better.
7. There should be no substance on your hair that could block or prevent the color from bonding to the hair – e.g. Residue from conditioner, styling product, oil or heat protectant.
Silicone-based hair care and styling products wrap your hair like plastic and prevent hair dye from sticking to your hair.
Silicone based products are often used to protect your hair from heat styling such as flat irons or blow dryers.
They are very difficult to remove and cannot be removed with ordinary shampoo. You need to use a special product, either a chemical-based clarifying shampoo that you can buy at specialty stores, or Logona Color Plus Cleanser. Suvarna styling products are not silicone based.
8. Make sure your hair is fully saturated with color during application
9. To achieve a bolder color, allow the product to act longer, up to the maximum time allowed for the product.
10. If the color is still not dark enough you can either apply a 2nd coat all over the hair or if there are areas in the hair that are not colored dark enough you can reapply the color only on those areas, without applying them all over your hair.
Please note that if you repeatedly apply layers of color all over your hair, it can build up too much color at the ends of the hair and make them too dark.
11. If your hair is proving difficult to dye with indigo, you can try applying heat while the paste is on your hair as this can help the indigo bond to your hair.
One way to gently warm your hair is to wrap your hair in cling film or a plastic processing cap and then wrap it in a towel to keep your head warm. For a more intense heat, you can try sitting in the sun or running a blow dryer over your hair for 10 to 15 minutes. Before applying direct heat, your hair color should be protected by the processing cap on a plastic sheet.
12. If you are using part of a packet of hair color powder and are saving the rest of the packet for future use, it is important to ensure that it is very well sealed in an airtight plastic bag or container and stored away from sunlight and heat. If not stored properly, it can deteriorate.
13. When washing the indigo out of your hair, try to wash it out with just water and not shampoo. This makes it easier to stay in.
Tips for preparing and using the paste
The paste should be soft and creamy enough to spread on your hair. If it’s too thick, difficult to spread, and comes out in clumps, add a little more liquid. If it’s too thin and runs down your throat, it means it has too much liquid in it. 100g of indigo would require around 300ml of water, if this seems too thick add another 25ml of water. If you take a long time to apply the paste, you may find that the paste dries out a bit in the bowl before you’re done and becomes too stiff. In this case, you can add a little more water to the paste.
You can apply the color with an applicator brush, but we prefer to apply it with gloved fingers as it gives you more flexibility. If you use gloves for application, you may find the thicker latex or nitrile gloves better than the polyethylene gloves.
Aftercare to extend the longevity of your indigo hair color
Following all of the above application tips will also help extend the longevity of indigo on your hair. How often you wash your hair and what you wash your hair with also depends on your hair type.
The more often you wash your hair, the faster the color will wash out. We recommend using a mild organic shampoo without sodium lauryl sulfate or ammonium lauryl sulfate.
The Logona Color Shampoo is very suitable here because it is mild and contains a small amount of natural dyes that help refresh the color between the hairs: Logona Natural Color Care Shampoo
Logona Color Conditioner is specially formulated to prolong the life of your hair color as it wraps around your hair to lock in the colour: Color Conditioner
Why choose a product with organic certification?
Eco, organic, or organic refers to produce that has not been genetically modified and that has not been grown using artificial fertilizers, pesticides, or herbicides. In the organic certified production there is a great transparency of the whole process, from the ingredients to the end product.
If you are planning to dye hair with indigo or any other natural dye, I hope you found this blog post useful. If you need further hair color advice or information about Indigo Mix, Indigo Hair Treatment, Natural Hair Dye / Natural Hair Dye, New Hair Growth or any other matter please email [email protected]
Is Bio organic indigo powder good for hair?
Indigo leaf powder must be tried with natural henna for better results. It also helps to detangle hair, making them thicker, manageable and lustrous. This indigo powder is completely organic, triple-sifted micro-fine powder for smoother application. It not only colours but also nourishes the hair.
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Returns/replacements will only be accepted for unused products in the event of defects, damage during delivery, missing or incorrectly shipped products. Return requests can be made within 15 days of delivery in the “My Order” section.
Can I apply indigo next day after henna?
You should consider indigo to be much more time-sensitive and less forgiving than henna. Indigo must be used within 15 – 20 minutes after mixing, or else it can become less effective. Indigo must be immediately applied over hair freshly colored with henna for the best results.
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Hello LUVs,
It’s Sunday #HairSpaDay and here’s my quick blog post of the week.
I recently touched up my gray roots with henna. Unfortunately, I didn’t realize I was out of Indigo until the next morning! That said, I had bright orange roots from my overnight henna, but no indigo to turn them black. (Indigo combines with henna and turns your orange hair dark brown/black).
This is a first for me as I usually double check I have everything I need such as both henna and indigo before beginning this process.
So I quickly reordered my indigo and creatively hid my orange roots for the next two days.
While I waited, my Love Me and Leave In conditioner moisturized my hair. I always use it during my monthly color refresher to prevent dryness on my ends and for easy rinsing.
Now to the test. Would that work? Would the indigo attach to henna applied days earlier? I wanted to find out.
As it turns out, Indigo can still tone down freshly applied henna days later. However, it appears to be only 50% effective. My roots are not as dark as they would have been if I had applied the indigo right after rinsing out my henna.
So what’s the takeaway? The timing of Indigo is important. Once you rinse out your henna, the clock will start. You should consider indigo to be much more time sensitive and less forgiving than henna.
Indigo must be used within 15-20 minutes of mixing or it may lose potency. For best results, Indigo must be applied immediately to freshly henna dyed hair.
You don’t learn these lessons until you actually screw it up. Luckily I did the experiment for you.
My roots will continue to darken over the next few days. When I do my next touch up in about 3 weeks, I’ll go over the part I just did.
That’s another tip. Sometimes when your henna/indigo session doesn’t turn out as dark as you hoped, you can do it again next time.
Learning never stops with hair care.
I hope these tips help.❤
– Kim
This is my hair after the henna has been rinsed out. As you can see, it is bright red-orange in color. This is the first step. The second step is to immediately apply indigo, which I didn’t have at the time!
3 days later indigo was applied. The great thing about using indigo on dry hair is that it doesn’t drip! Indigo is by far the messiest of the two natural hair dyes. Unfortunately I will have to keep applying it to wet hair in the future as it needs to be applied immediately after rinsing out henna. But it was a nice change!
Post indigo rinse. The color will get darker and darker over time, but I’ll be reaching for this part again in 3 weeks. I usually wear my hair in a #highbun with bangs so it’s rarely exposed.
What color is pure indigo?
Indigo is a natural dye that is obtained from the plant Indigofera tinctoria. It’s rich, dark blue in color and is mainly used for dyeing clothes, especially denim. In fact, it is known to be one of the oldest dyes to be used for textile dyeing and printing.
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How long should we keep indigo on hair?
Next, mix some indigo powder with warm water in a bowl, let it sit for 10-15 minutes, and work it into your hair with your hands. Finally, wrap your hair and let the indigo sit for 1 hour before washing it out. For more tips from our Cosmetology co-author, like how to dye your hair with henna, read on!
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License: Creative Commons
<\/p>
<\/p><\/div>“} 1 Buy or make henna. You can make your own henna or save yourself time by buying henna from a grocery store in the Middle East or India. But enough henna to make your 200g is usually enough for shoulder length hair If you want special henna you may need to see a henna artist You can make your own henna or you can save yourself time by buying some from a Middle Eastern grocery store or buy in India But enough henna to cover your hair 200g is usually enough for shoulder length hair If you want specialty henna you may need to visit a henna artist.
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License: Creative Commons
<\/p>
<\/p><\/div>“} 2 Prepare the henna. If you have light hair, you must use henna as a base. Put a small amount of henna in a bowl. Pour a little hot water into the bowl. Then mix in some lemon juice or vinegar. Stir this mixture until it becomes thick. Add liquid until it is a creamy thickness. Once thick enough, you should wrap the bowl with plastic wrap
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License: Creative Commons<\/a>
<\/p>
<\/p><\/div>“} 3 Allow the henna to cool for a few minutes before using it. You want the henna to be warm when you apply it to your hair, but not hot. Take it After a few minutes, remove the plastic wrap from the bowl and check that the henna is no longer hot.
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License: Creative Commons<\/a>
<\/p>
<\/p><\/div>“} 4 Apply cream to your ears and hairline to protect your skin from stains. You don’t want henna to get on your face or ears while you’re doing your Dyeing Hair Any type of thick cream or conditioner will work.
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License: Creative Commons
<\/p>
<\/p><\/div>“} 5 Apply henna to your hair. Do this in sections, dividing your hair into three even sections. You want to apply a large amount of henna paste to your hair. This should be done it be thick that it reaches the scalp.
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License: Creative Commons
<\/p>
<\/p><\/div>“} 6 Cover your head. Once you have applied a significant amount of henna to each section of your hair, wrap plastic wrap around your head. You should not remove this wrapping for two to four times through will ensure that your hair fully absorbs the henna.
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Is Indigo powder poisonous?
Indigo has a low oral toxicity, with an LD 50 of 5000 mg/kg in mammals.
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Chemical compound
Indigo dye is an organic compound with a distinctive blue color. Historically, indigo was a natural dye obtained from the leaves of some plants in the genus Indigofera, most notably Indigofera tinctoria; dye-bearing Indigofera plants have been widely cultivated and used as an important crop around the world, particularly in Asia, where the production of indigo dye was economically important due to the early rarity of some blue dyes in the past.
Most of the indigo dyes produced today are synthetic, accounting for several thousand tons each year. It is most commonly associated with the manufacture of denim fabrics and blue jeans, where its properties allow for the rapid application of effects such as stone washing and acid washing.
Used[ edit ]
indigo dye
Indigo is mainly used as a dye for cotton yarn, which is mainly used in the manufacture of denim fabrics suitable for blue jeans. On average, a pair of blue jeans only requires 3 to 12 grams of dye. Smaller amounts are used in dyeing wool and silk.
Indigo carmine, also called indigo, is an indigo derivative that is also used as a dye. About 20,000 tons are produced annually, again mainly for the manufacture of blue jeans.[1] It is also used as a food coloring and is registered in the United States as FD&C Blue No. 2 listed.
Sources[edit]
Natural springs[edit]
A variety of plants have provided indigo throughout history, but most natural indigo has been obtained from plants in the genus Indigofera, which are native to the tropics, particularly the Indian subcontinent. The most important commercial indigo species in Asia was true indigo (Indigofera tinctoria, also known as I. sumatrana). A common alternative used in the relatively colder subtropical areas such as Japan’s Ryukyu Islands and Taiwan is Strobilanthes cusia.
Until the introduction of Indigofera species from the south, Polygonum tinctorum (dyer’s knotweed) was the most important blue dye in East Asia; However, the crop produced less dye than the average indigo crop and was quickly outstripped in favor of the more economical Indigofera tinctoria plant. In Central and South America, Indigofera suffruticosa, also known as Anil, is grown, and in India, Indigofera arrecta, Natal Indigo, was an important species. In Europe, Isatis tinctoria, commonly known as Waid, was used to dye fabrics blue, containing the same dyes as indigo, also known as indigo.
Several plants contain indigo, which when exposed to an oxidizing source such as atmospheric oxygen, reacts to produce indigo dye; However, the relatively low concentrations of indigo in these plants make them difficult to work with, as the color is more easily spoiled by other dyes also present in these plants, typically resulting in a green tinge.
The precursor to indigo is indican, a colorless, water-soluble derivative of the amino acid tryptophan. Indican readily hydrolyzes to release β-D-glucose and indoxyl. Oxidation from exposure to air converts indoxyl to indigotine, the insoluble blue chemical that is the endpoint of indigo dye. Indican was derived from processing the leaves of the plant, which contain up to 0.2-0.8% of this compound. The leaves were soaked in water and fermented to convert the glycoside indican present in the plant into indigotine.[2] They precipitate out of the fermented leaf solution when mixed with a strong base[3] like lye, caked, dried and powdered. The powder was then mixed with various other substances to create different shades of blue and purple.
Natural sources of indigo also include mollusks; The Murex sea slug produces a mixture of indigo and 6,6′-dibromoindigo (red) which together produce a range of purple hues known as Tyrian purple. Exposure to light during part of the dyeing process can convert the dibromoindigo to indigo, resulting in shades of blue known as royal blue, hyacinth purple, or tekhelet.
Chemical Synthesis[ edit ]
Heumann’s synthesis of indigo Pfleger’s synthesis of indigo
Due to its economic importance, indigo has been produced through many processes. The Baeyer-Drewson indigo synthesis dates back to 1882. It involves an aldol condensation of o-nitrobenzaldehyde with acetone, followed by cyclization and oxidative dimerization to indigo. This route is very useful for obtaining indigo and many of its derivatives on a laboratory scale, but proved impractical for industrial-scale synthesis. Johannes Pfleger[4] and Karl Heumann (de) finally led to industrial mass synthesis.[5]
The first commercially viable way to produce indigo is credited to Pfleger in 1901. In this process, N-phenylglycine is treated with a molten mixture of sodium hydroxide, potassium hydroxide and sodium amide. This highly sensitive melt produces indoxyl, which is then oxidized in air to form indigo. Variations on this method are still used today. An alternative and also practicable route to indigo is attributed to Heumann in 1897. It involves heating N-(2-carboxyphenyl)glycine to 200 °C (392 °F) with sodium hydroxide in an inert atmosphere. The procedure is simpler than the Pfleger procedure, but the preliminary stages are more expensive. Indoxyl-2-carboxylic acid is formed. This material readily decarboxylates to indoxyl, which oxidizes to indigo in air.[1] The preparation of indigo dye is practiced in college laboratory classes following the original Baeyer–Drewsen route.[6]
History of Indigo[ edit ]
The oldest known fabric dyed with indigo, dated at 6,000 years, was discovered in Huaca Prieta, Peru.[7] Many Asian countries such as India, China, Japan and Southeast Asian nations have used indigo as a dye (particularly for silk) for centuries. The dye was also known to ancient civilizations in Mesopotamia, Egypt, Great Britain, Mesoamerica, Peru, Iran and West Africa. Indigo was also grown in India, which was also the earliest major center for its production and processing.[8] The species I. tinctoria was domesticated in India.[8] Used as a dye, indigo made its way to the Greeks and Romans, where it was valued as a luxury product.[8]
Indigo cake, approx. 2 cm
In Mesopotamia, a Neo-Babylonian cuneiform tablet from the 7th century B.C. a recipe for dyeing wool, whereby repeated immersion and airing of the fabric produces lapis-colored wool (uqnatu).[9] Indigo was most likely imported from India. The Romans used indigo as a pigment for painting and for medicinal and cosmetic purposes. It was a luxury item imported to the Mediterranean from India by Arab merchants.
India was a major supplier of indigo to Europe as early as the Greco-Roman era. India’s association with indigo is reflected in the Greek word for dye, indikón (Ἰνδικόν, Indic).[9] The Romans Latinized the term into indicum, which passed into the Italian dialect and eventually into English as the word indigo.
In Bengal, indigo growers rebelled against exploitative working conditions created by European merchants and planters in what became known as the Indigo Revolt in 1859, during the period of company rule. Indian playwright Dinabandhu Mitra’s Bengali play Nil Darpan was a fictional retelling of the revolt.
The demand for indigo in the 19th century is illustrated by the fact that in 1897 7,000 km2 (2,700 sq mi) were dedicated to growing indican-producing crops, mostly in India. In comparison, the country of Luxembourg is 2,586 km2 (998 sq mi).[1]
In Europe, indigo remained a rare commodity throughout the Middle Ages. Instead, a chemically identical dye from the woad plant (Isatis tinctoria) was used. In the late 15th century, Portuguese explorer Vasco da Gama discovered a sea route to India. This led to the establishment of direct trade with India, the Spice Islands, China and Japan. Importers could now avoid the high tariffs levied by Persian, Levantine, and Greek middlemen, as well as the lengthy and dangerous land routes that had previously been used. Consequently, the import and use of indigo in Europe increased significantly. Much European indigo from Asia arrived via ports in Portugal, the Netherlands and England. Many indigo plantations were established by European powers in tropical climates. Spain imported the dye from its colonies in Central and South America, and it was an important crop in Haiti and Jamaica, with much or all of the labor being done by enslaved Africans and African Americans. During the Spanish colonial era, the intensive production of indigo for the world market in the region of present-day El Salvador led to such unhealthy conditions that the local indigenous population, who were forced to work in pestilent conditions, was decimated.[10] Indigo plantations also thrived in the Virgin Islands. However, France and Germany banned imported indigo in the 16th century to protect the local woad industry.
Newton used “indigo” to describe one of the two new primaries he added to the five he had originally named in his revised depiction of the rainbow in Lectiones Opticae of 1675.
Because of its high value as a commodity, indigo was often referred to as blue gold.[12]
Across West Africa, indigo has been the foundation of centuries-old textile traditions. From the Tuareg nomads of the Sahara to Cameroon, indigo-dyed clothing meant wealth. Women dyed the fabric in most areas, with the Yoruba of Nigeria and the Mandinka of Mali being particularly well known for their expertise. Among Hausa male dyers, work in communal dyers was the basis of the wealth of the ancient city of Kano, and they can still ply their trade in the same pits today.[13] The Tuareg are sometimes referred to as the “Blue People” because the indigo pigment in the fabric of their traditional robes and turbans colored their skin dark blue.[14]
In Japan, indigo became particularly important during the Edo period. This was due to a growing textile industry[15] and because commoners had been banned from wearing silk[16], leading to increased cultivation of cotton and consequently of indigo—one of the few substances that could dye it.[17] ]
In North America, indigo was introduced into colonial South Carolina by Eliza Lucas, where it became the colony’s second most important source of income (after rice).[18] As an important export crop, indigo supported plantation slavery there.[19] In the May and June 1755 issues of The Gentleman’s Magazine appeared a detailed account of the cultivation of indigo, accompanied by drawings of the necessary equipment and a probable budget for beginning such an operation, written by South Carolina planter Charles Woodmason. It later appeared as a book. [20] [21] By 1775 indigo production in South Carolina exceeded 1,222,000 pounds. [22] When Benjamin Franklin sailed to France in November 1776 to enlist French support for the American Revolutionary War, there were 35 casks of indigo on board the Reprisal, the sale of which would help fund the war effort.[23] Three commercially important species occur in colonial North America: the native I. caroliniana and the introduced I. tinctoria and I. suffruticosa.[24]
Synthetic development[edit]
Production of indigo dye in a BASF plant (1890)
In 1865, German chemist Adolf von Baeyer began synthesizing indigo. He described his first synthesis of indigo (from isatin) in 1878 and a second synthesis (from 2-nitrobenzaldehyde) in 1880. (It was not until 1883 that Baeyer finally determined the structure of indigo.[25]) The synthesis of indigo remained impracticable, so the search for alternative starting materials continued at the Badische Anilin- und Soda-Fabrik (BASF) and Hoechst. Johannes Pfleger[4] and Karl Heumann eventually developed industrial mass synthesis.[5]
The synthesis of N-(2-carboxyphenyl)glycine from the readily available aniline offered a new and economically attractive route. BASF developed an economically feasible manufacturing process that was used in 1897 when 19,000 tons of indigo were made from plant sources. This had dropped to 1,000 tons by 1914 and continued to shrink. As of 2011, 50,000 tons of synthetic indigo were produced worldwide.[26]
Dyeing technology[ edit ]
Indigo White (Leuco-Indigo)
Yarn dyed with indigo dye
Indigo white[ edit ]
Indigo is a challenging dye as it is not soluble in water. In order to be dissolved, it must undergo a chemical change (reduction). The reduction converts indigo to “white indigo” (leuco-indigo). When a submerged fabric is removed from the dye bath, the white indigo quickly combines with the oxygen in the air, turning back into the insoluble, intensely colored indigo. When it first became widely used in Europe in the 16th century, European dyers and printers struggled with indigo because of this characteristic. It also required multiple chemical manipulations, some involving toxic materials, and presented many opportunities to injure workers. In the 19th century, the English poet William Wordsworth referred to the plight of the indigo dye workers of his hometown of Cockermouth in his autobiographical poem The Prelude. Of their dire working conditions and the empathy he felt for them, he wrote:
No doubt then I should have made common cause with some who perished; mercifully perished too A poor, deluded and confused victim, Unknown to these naked souls of Miller Blue
A pre-industrial method used in Europe to produce indigo white was to dissolve the indigo in stale urine, which contains ammonia. A more convenient reducing agent is zinc. Another pre-industrial method used in Japan was to dissolve the indigo in a heated vat in which a culture of thermophilic, anaerobic bacteria was maintained. Some species of such bacteria produce hydrogen as a metabolic product, which converts insoluble indigo into soluble indigo white. The fabric dyed in such a vat was decorated using Shibori (batik), Kasuri, Katazome and Tsutsugaki techniques. Examples of clothing and banners colored using these techniques can be seen in the work of Hokusai and other artists.
Direct print[ edit ]
Two different methods of applying indigo directly were developed in England in the 18th century and remained in use well into the 19th century. The first method, known as “pencil blue” because it was most commonly applied with a pencil or brush, could be used to achieve dark tones. Arsenic trisulfide and a thickener were added to the indigo container. The arsenic compound delayed the oxidation of the indigo long enough to paint the dye onto fabrics.
Pot of freeze-dried indigo dye
The second method was known as “China Blue” due to its resemblance to Chinese blue and white porcelain. Rather than using an indigo solution directly, the process involved printing the insoluble form of indigo onto the fabric. The indigo was then reduced in a series of ferrous sulfate baths with air oxidation between each dip. The china blue process could produce sharp designs, but it could not produce the dark tones that were possible with the pencil blue method.
The “glucose process” was developed around 1880. It eventually made it possible to print indigo directly onto fabric and could produce inexpensive dark indigo prints unattainable with the China Blue method.
Freeze-dried indigo or instant indigo has been available since 2004. In this process, the indigo has already been reduced and then freeze-dried into a crystal. The crystals are placed in warm water to create the Dye Pot. As with a standard indigo dye pot, care must be taken not to mix in oxygen. Freeze-dried indigo is easy to use, and the crystals can be stored indefinitely as long as they are not exposed to moisture.[27]
Chemical properties [edit]
Indigo dye is a dark blue crystalline powder that sublimes at 390–392 °C (734–738 °F). It is insoluble in water, alcohol, or ether, but soluble in DMSO, chloroform, nitrobenzene, and concentrated sulfuric acid. The chemical formula of indigo is C 16 H 10 N 2 O 2 .
The molecule absorbs light in the orange part of the spectrum (λ max = 613 nm).[28] The compound owes its deep color to the conjugation of the double bonds, i.e. the double bonds within the molecule are adjacent and the molecule is planar. In indigo white, the conjugation is broken because the molecule is not planar.
Indigo derivatives [ edit ]
Structure of Tyrian Purple
Structure of indigo carmine.
The benzene rings in indigo can be modified to give a variety of related dyes. Deep red is thioindigo, in which the two NH groups are replaced by S atoms. Tyrian Purple is a dull purple dye secreted by a common Mediterranean snail. It was highly valued in ancient times. In 1909 its structure was shown to be 6,6′-dibromoindigo (red). 6-Bromondigo (purple) is also a component.[29] It was never produced commercially. However, the related Ciba blue (5,7,5′,7′-tetrabromoindigo) is of commercial value.
Indigo and its derivatives with intra- and intermolecular hydrogen bonds have a very low solubility in organic solvents. They can be solubilized with transient protecting groups such as the tBOC group, which suppresses intermolecular bonding.[30] Heating the tBOC indigo results in efficient thermal deprotection and regeneration of the starting H-bonded pigment.
Treatment with sulfuric acid converts indigo into a blue-green derivative called indigo carmine (sulfonated indigo). It became available in the mid-18th century. It is used as a colorant for food, pharmaceuticals and cosmetics.
Indigo as an organic semiconductor[ edit ]
Indigo and some of its derivatives are known to be ambipolar organic semiconductors when deposited as thin films by vacuum evaporation.[31]
Safety and Environment[ edit ]
Indigo has a low oral toxicity with an LD 50 of 5000 mg/kg in mammals.[1] In 2009, large amounts of blue dye were reported downstream from a blue jean manufacturer in Lesotho.[32]
The compound was found to act as an agonist of the aryl hydrocarbon receptor.[33]
Indigo water pollution in Phnom Penh, Cambodia, 2005
References[edit]
Can henna and indigo cause hair loss?
May cause hair fall out
Many people also complain of hair falling out after henna applications. “Henna alone can’t cause hair loss, but low quality or improperly applied henna may lead to dry hair and scalp and cause intense hair loss,” Davis explains.
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What is it? Henna is obtained from the leaves of the Lawsonia inermis henna plant. The powder form is typically made into a paste and applied to the hair or skin. Traditional henna dye recipes involve making henna powder by drying the leaves and then mixing it with tanning liquids, such as tea or coffee, to increase the dyeing potential. Henna contains lawsone, a molecule that binds to proteins to color hair, skin, and fabrics. It is also an antibacterial and antimicrobial agent. So why does this seemingly harmless plant cause such a stir when it comes to hair coloring? Let’s take a look at some disadvantages of henna.
Disadvantages of Henna for Hair While henna offers many advantages, it also comes with a number of disadvantages. Some are only cosmetic while others are more serious. Disadvantages Color may bleed initially
Color may fade or become dull over time
can only darken hair, not lighten it
requires a complex application process
can dry out the hair
difficult to remove
can not be bleached
stains on skin and clothing
Color may be affected by heat styling
not recommended for salt and pepper hair
can cause hair damage
may contain unhealthy additives
Can cause allergic reactions
can cause hair loss
can cause loss of hair texture Difficult to change color Once you’ve henna colored your hair, it’s difficult to make changes. In general, you pretty much stick with what you have. Henna “stays deep in the cuticle and makes it extremely difficult for your stylist to reopen the cuticle and change the color,” says Monica Davis, a professional hair stylist and founder of My Straightener. Lightening Isn’t Easy When it comes to lightening your hair after applying henna, proceed with caution. They *can* bleach hair that’s been dyed with pure henna. Before you do this, double check that you are using 100% henna powder or paste. Since many henna dyes contain additives, this is easier said than done. You also need to wait for the henna to start fading naturally. Otherwise, the bleaching process will open the hair cuticle and deepen the red-orange or blackish hue. YouTuber Courtney Violetta explored bleaching her henna-dyed hair in this DIY video. The process is quite complicated and requires many products. Ultimately, Violetta’s hair didn’t lighten the way she imagined. She also noticed that her hair strands became “stretchy”, dry and brittle. She ended up posting this video explaining why she stopped using henna altogether. In general, it’s best to get rid of henna dye when growing out your hair. Best for dark hair “Henna in its pure form works best on dark hair,” says Salila Sukumaran, Ambassador for India’s Department of Health and founder of wellness travel consultancy Ayurgamaya. On salt and pepper hair, henna leaves “a bright orange glow,” notes Sukumaran. If you’re hoping to cover gray, the better option is to use a quality chemical dye. Can cause hair loss Many people also complain of hair loss after henna applications. “Henna alone won’t cause hair loss, but poor quality or improperly applied henna can dry your hair and scalp and cause severe hair loss,” explains Davis. Can Have Potential Health Side Effects As an Ayurvedic practitioner, Sukumaran says overuse of henna can lead to imbalances. “Henna is extremely cooling, and if a person with a kapha body type … stays on the mask for more than a few hours, they’re likely to get sick,” she says. According to Ayurveda, leaving henna on your hair and scalp overnight can cause: Mucus buildup
coughs and colds
Neck and Shoulder Pain In addition, leaving henna on for too long makes hair dry and brittle. May react with metal If you search the internet for information on coloring your hair with henna, you will likely come across warnings not to use it with metal bowls. This can be the case with iron or aluminum in particular. While Davis notes that most modern commercial henna dyes are protected from oxidation and will not react with metal containers, it is difficult to determine if the henna you use will be the case. Although there is no scientific evidence that henna will react with metal, it is safest to use a glass or ceramic bowl.
Pros of Henna for Hair Although this is quite a long list of cons, there are still many pros to dying hair with henna. Professionals can be done at home
can be cheaper than other box dyes
can be left longer to deepen the color
is permanent
lasts longer than chemical dyes
offers a safe alternative to chemical dyes, especially for pregnant women
seals the cuticle of the hair
makes hair soft
improves shine and strength
helps prevent dandruff
reduces scalp oiliness
prevents premature graying
can prevent hair loss
Helps fight lice Appearance of the hair If you know what products to use, henna can add shine, shine and strength to your hair. “Because of the high concentration of tannins, henna is very effective against premature graying of the hair,” says Davis. If you’re committed to color, henna may also offer the longest-lasting shade. “Henna can provide a rich auburn color that potentially stays on your hair much longer than any chemical salon color,” explains Sukumaran. Hair health In addition, henna provides both nourishment and protection for the hair and scalp. “It’s high in antioxidants, protein, and has antifungal effects,” says Davis. “All three are very helpful for scalps that are prone to dandruff.” It can also give your hair a large dose of vitamin E, a natural hair softener. Other Potential Health Benefits Sukumaran points out that henna may also have Ayurvedic health benefits. According to Ayurveda, henna is also a coolant that can relieve headaches and dry out excess oil on the scalp. Cultural context In India, henna symbolizes “divine abiding love between couples,” says Sukumaran.
For this reason, henna is traditionally used in Indian wedding rituals.
Does henna “ruin” hair? Lots of rumors on the internet could suggest that henna will ruin your hair. Sukumaran shares a cautionary tale about a regular henna user who decided to bleach her burgundy hair and the hairdresser didn’t use a henna-safe bleach. According to Sukumaran, the chemical reaction between the henna and bleach caused the customer’s hair to “smoke.” Although the stylist immediately washed away the bleach, the damage was done. The benefit is that even if the hair shaft is damaged, it will grow back as long as the root is not damaged. While this story is anecdotal, it’s still important to be aware of the powerful effects that some combinations of chemicals and herbs can have. Some henna users, including YouTuber ife360TV Naturally, find that their hair appears damaged, including changes in texture and hair loss, after repeated henna applications. Some henna mixes may react negatively to bleach or chemical dyes. Always let your hair dyer know when you’ve applied henna to your hair, and always do a patch test and strand test to determine how a dye will interact with your body.
What You Should Know Before Dyeing Your Hair With the above list of cons, you might be ready to skip using henna on your hair. Before throwing it away entirely, it’s important to understand why these downsides can occur and how to avoid them. Whether or not henna will work on your hair depends on several factors including: Hair porosity
hair texture
whether you use conditioning agents
frequency of use
duration of use
allergies
Product quality Porosity and texture of the hair Everyone has different experiences with the application of henna. That’s because everyone has a unique hair porosity that affects how easily their hair takes the henna color and what happens to their hair after it’s colored. Henna works best on extremely porous hair or hair that is particularly absorbent. Low porosity hair may not take color as well.
Those with curly hair may find that their locks aren’t as tight or bouncy after using henna. This happens when the Lawson molecules in henna adhere to the strand of hair and form a layer of color that alters the hair’s porosity. This also weighs down the hair and may loosen curls. The more frequently the henna is applied, the thicker the layer of Lawson molecules on the hair strands. While this can result in a deeper color, it can also have a smoothing effect. “Regular use of henna can mess up curly heads,” says Sukumaran. “Henna tends to form a coating on the hair shaft, making the strand of hair straighter. If you have wavy or loose curls, you may find that your curl pattern changes with regular use.” Preventing Dryness Additionally, henna can dry out your hair. “Regular high-quality henna makes dry and frizzy hair even drier and frizzier,” says Davis. Davis adds that this effect can be counteracted by adding moisturizers to your paste. YouTuber Vyala Bloom agrees. Bloom offers tips for combating lock loss, including adding a hibiscus tea conditioner to your hair regimen and avoiding high-protein conditioners like egg masks. Frequency and Duration of Application As mentioned earlier, repeated application of henna to the hair causes the protein molecules to build up on the hair shaft. This can cause the hair to become heavier, less porous and lose its natural curl. Sukumaran suggests leaving the henna on your hair for less than an hour if you have curly or wavy hair. As someone with a head full of wavy hair, she finds that her own curling products don’t work as well after prolonged henna use. “As you leave the henna on longer, the hair texture becomes smoother and smoother,” she says. Allergies As with most ingredients and products, there is a possibility of allergy to henna. This can cause irritation and redness on the scalp. Also, there are some henna scammers out there. Black henna is an artificial dye made from paraphenylenediamine, sometimes referred to as PDD. PDD oxidizes to an indigo or blackish color when it interacts with air, creating a “black” stain. However, it can cause irritation of the scalp, including: Contact dermatitis
burning feeling
redness
swelling
itching
flake off
scarring
Blistering (in severe cases) Many hairdressers develop contact dermatitis or allergies after prolonged exposure to this dye. Some, like Davis, consider black henna to be unsafe to use and do not offer it in their salons. Always do a patch test to rule out the possibility of allergies before applying henna to hair. Avoid black henna made with the synthetic ingredient paraphenylenediamine (PDD). Product Quality Along with scammers, many henna powders, pastes, and mixes contain unsafe additives like silver nitrate
carmine
pyrogallol
orange disperse dye
Chromium These additives have been shown to cause: allergic reactions
chronic inflammatory reactions
Late-onset allergic reactions to hairdressing products and textile dyes
As for what to use commercially, you have many choices when it comes to henna. Ready-made pastes are widely available, but it’s important to make sure the product you choose is of high quality. Davis is concerned about the lack of quality control over henna products. “Dishonest manufacturers may simply sell contaminated product or add chemicals to reduce production costs,” she says. She doesn’t use henna at all with her customers. If you do choose to use it, she advises finding a product that is: Free of PDD
free from pesticides
free of additives
safe for skin Godrej Nupur Henna is a popular option used by Bloom. Sukumaran recommends it because it is blended with Ayurvedic beneficial herbs. Many henna users also recommend Lush products or henna dyes from The Henna Guys. In India, Shahnaz Husain’s products are very popular and widely used. The brand offers many Ayurvedic skin care and hair care products made exclusively from botanical ingredients and herbs. The company also includes recipes for making pastes and masks. Shahnaz Husain products include: Henna powder
Indigo Henna Powder
Henna Hair Treatment Powder that can be used as a hair mask Forest Essentials offers an Intensive Hair Repair Masque made from banana pulp, fenugreek, hibiscus and other herbs to combat the dryness that henna can cause. Traditional recipes for a henna dye may include tea or coffee to increase the dye potential. If you’re using straight henna, you might want to add ingredients like coconut oil as well
amla powder
hibiscus flower powder
bhringraj powder Plain henna powder can serve as the basis for making a custom paste, but henna powder does not mix easily with liquids and can be difficult to use. If you choose the DIY route, be sure to follow your henna dye recipe exactly, including safety precautions.
Aftercare Hair care after coloring is just as important as preparation. Here are the best practices: Rinse the henna off thoroughly with water. Leave your hair alone for 24 hours. Shampoo and care after the waiting time. Treat the hair with a moisturizing mask. “After applying a henna hair mask and washing it off, it’s best to leave the hair alone for 24 hours,” says Sukumaran. “This helps deepen the color and integrate the beneficial properties.” She suggests waiting until the next day to shampoo and conditioner for best results. Davis also recommends treating your hair with a good conditioning and moisturizing mask.
Can I leave indigo in my hair overnight?
When you apply the indigo make sure to leave it in your hair at least 3-4 hours.
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How to easily get blacks with henna and indigo?
The best tip that is guaranteed to work is, first, instead of using henna alone in your first step, actually add indigo to your henna in the first step to create a standard brown hair recipe.
Let me clear that up. So you’re still mixing your henna separately and getting a dye release. Most henna only needs to sit for 3-4 hours, not overnight.
Once it’s done you can start your indigo, but in a different bowl.
Mix your indigo and allow to set until dye release is achieved, which usually takes 20-30 minutes.
Then combine both pastes together in a bowl and use and apply to your hair.
Creating a darker base instead of using henna alone works better to achieve black results with the second step using indigo, especially for those struggling to achieve the desired black tone. Works well on stubborn grays and hair strands.
For best results, use our hair wash before using the henna hair coloring treatments and leave your hair damp. As a result, the color adheres better and can be applied more quickly to damp hair strands.
Then do your henna and indigo treatment (one step process). Wash this out once it has been in your hair for at least 3-4 hours.
Then, when you have time, do your indigo hair coloring treatment right away as a second step. If you don’t have time right now, just make sure you make your indigo within 72 hours of step one. Then don’t wait any longer. There will be new growth that may not be properly covered if you wait too long with the second step.
When you apply the indigo, make sure to leave it in your hair for at least 3-4 hours. Then wash it off and moisten it. Dry and style as usual.
Henna hair color lasts 4-6 weeks.
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