Google+ Honest Reviews and Lifestyle Tips: Can you apply Chemical Hair dye on Henna-treated Hair and Vice Versa?

Monday, May 27, 2013

Can you apply Chemical Hair dye on Henna-treated Hair and Vice Versa?

Can I apply Henna on Chemically treated Hair? Can I apply a chemical hair color on my Henna dyed hair? These are the two most common questions people write to me for, because some hair dresser at some saloon would suddenly suggest them to try a no ammonia hair color over Henna dyed hair, or Henna over chemically damaged hair. 

The natural red Henna is known as Lawsonia Inermis. Henna is a counted as a deposit only (demi-permanent hair color). Initially Lawsone Color molecules just coat the outer layer of hair but with continuous usage, the Henna color particles (Lawsone molecules) start entering the hair shaft thereby making Henna permanent over time. 

Whether you have dyed your hair in the past with Henna or with a chemical hair color, you cannot move from one to the other overnight. If you have used Henna continuously for some time, your hair may have several layers of henna color pigments (Lawsone molecules) coated on them. This will not let the chemical hair color to work on your hair. 


CAN I APPLY CHEMICAL HAIR COLOR ON HENNA DYED HAIR?
Can I apply Henna over Chemical dye Or Hair Color over Henna

You can apply a chemical hair color on your henna-dyed hair, but the color will wash out soon and you will be unhappy about the money you have spent on those costly chemical colors. This is because the Henna color pigments (Lawsone molecules) already present inside your hair will not let the chemical hair color deposit it's color molecules properly.

If you had used/are using Henna with other additives like indigo powder and then go for a chemical hair color, you may get really unexpected results like unnatural hair color on some portions of the head and uneven color patches here and there.

Also, many poor herbal hair brands in the market add metallic salts in their so called herbal hair colors. Most times these ingredients are not disclosed and such products are marketed with only 'key ingredients' listed on the packet. They do NOT give you the full ingredient list. So if you have unknowingly used any such poor herbal hair color with chemical additives, you can get strange result on applying chemical hair dye over it. Because the metallic salts deposited in your hair may react with the hydrogen peroxide in your chemical hair color mixture and may give you undesired coloring effect like a dirty green or some strange unnatural hair color.

Another important factor is the quality of water supply in your bathroom. If your tap water is hard, Henna or indigo may give you strange results.


IS THERE A SOLUTION THEN?

Yes, one alternative is to wait for a few months without applying any Henna and then start with chemical hair colors. Else, you can choose a chemical hair color close to or slightly darker than your present Henna colored hair and touch up only the roots, where new hair have grown without any Henna in them. Finally if you are okay with the color washing off soon, you can start using a chemical hair color immediately without waiting.

Please know that there a lot of other factors that come into picture and sometimes the results may even be good. It completely depends on your present hair color, your natural hair color, the porosity of your hair, the health of your hair etc. So exceptions are always there. There actually are people who have used chemical hair colors over Hennaed hair and the results were not bad. The Hennaed hair may show up as red or orange highlights in between the other strands that may have actually sucked up some chemical color.

So the best approach whether you want to go from Henna to Chemical Hair Dye or Chemically dyed hair to Henna, is to do a strand test first. A strand test is also recommended if your tap water is hard or contains other salts. This way you will be sure of the final outcome of your hair coloring experience and will get a fair idea of what shade will come out on full application.


CAN I APPLY HENNA OVER CHEMICALLY DYED HAIR?

Similarly, if you have chemically treated hair (chemically dyed, bleached, blonde, permed, rebonded or curled hair etc), and you try to use Henna over it within a period of 6 months from a harsh chemical treatment, you may end up with an unnatural hair color like a dirty green or some other unexpected shade. If you have been doing only root touch-ups for a few months, you need not worry.

I recently tried Henna and got amazing results, which I will share in a separate post. I had been doing root touch up only, with L'Oreal Excellence Creme for more than one and a half years and last month I had tried Godrej rich cream hair color, which was demi-permanent and washed out of my hair within 3 hair washes. Besides that, I was using a silicones free shampoo and also did not use any hair serum for a few weeks before finally trying Henna.  My tap water is normal too. So I got beautiful hair color results from Henna, except on the grays, for which I have other plans. But for the time being, I have kept my L'Oreal Casting Creme aside and don't plan to look into that direction.


I hope this post answers most of your questions regarding switching from Henna to Chemical hair dyes and vice versa. 


Also Check Out:


Difference between Permanent, Demi-Permanent, Semi-Permanent and Temporary Hair Colorants


Difference between Chemical, Organic, Herbal and Natural Hair Colors


Are AMMONIA-FREE hair colors really safe?

18 comments:

  1. Very informative post..loved the way how u explained ....thnx for sharing gagan :):)

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    1. Thanks for reading Tej :) I am glad you liked this post.

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  2. Useful post Gagan Thanks for sharing sweets :)

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  3. useful post gagan... i am currently into using henna only but the information will be useful for in future if i decide to dye them :)

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    1. Thanks for reading Supriya :) I remember you had mentioned in one of the previous posts that you are looking forward to my insights on Henna. This post was mainly to answer the questions I get regularly over email but I do have some important information to share in the future.

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  4. Useful post Gagan, I wasn't aware about that! I use henna and rarely hair colours.
    My hair is dark brown with a reddish tinge.
    That's true henna over chemically treated hair can lead to some weird looking color!

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    1. I love dark brown hair Niesha as and my natural hair color was stark black :) And this time with Henna I did get a dark brown color especially my hair ends which were very light by now look quite highlighted with Henna.

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  5. Great post Gagan.. I have always stayed away from henna and I coloured my hair for years. Now that I am off the hair colour, I am really enjoying applying henna esp in summer for the conditioning... Dont like the small though.. any remedies for that?

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    1. Dear Avina, sorry I missed this comment. Just happened to notice. Actually I have tried adding essential oils to henna and that does bring down the smell to a great extent, however, every time I added essential oils directly to Henna, it dried out my hair badly. So just keeping it covered with cloth and a plastic wrap works for me and after shampooing, there is no or minimal smell.

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  6. I've been using garnier hair dye for quite a long time but now my scalp hurts when i tie my hair this is probably due to weak roots + my hair has become very frizzy and dry whereas i had smooth and silky hair before applying dye. i kindly request u to advise me about how do i treat my hair to come out of this problem. i have around 80% grey hair. pl. reply asap........

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    1. Please read the article 'How to take care of damaged brittle hair and scalp' and 'Hair Care tips for colored hair' under Hair Care. You will get all your answers :)

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  7. Dear gagan
    Very informative post. I wanted to know which brands of henna to use and where can I find indigo powder

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    1. You can use any body art quality henna or herbal henna like Patanjali or Godrej Nupur etc.If you are buying plain Henna, you can add Amla powder to it for conditioning, better color and other benefits. The indigo information I share only as a part of the complete Henna Indigo usage guide, For details, please refer to the Blog Policy.

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  8. Very informative, I am using hair colors for last 12 years now I developed pigmentation over my face, and doctor adviced me to stop using hair dye and colors forever, my 80% hair are grey, please suggest what should I use to color my hair?

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    1. Dear Namita, it simply means your body and scalp needs a break from hair colors. Don't worry, the pigmentation will go off on its own. Nature and time are the biggest healers. If you are unable to use chemical hair colors and also don't want to leave your hair as such, then plant colors are your only choice. There are more ways of coloring hair without chemicals, however they fulfill more of fashion need than good gray coverage. Buy any body art quality Henna and make paste with 2 spoons of it. Once it has released good color, apply it on a hair strand behind your ear to do a patch test. If you do not feel any reaction, then you can shift to Henna. Reaction with Henna is anyways very very rare. Some people feel cooling but there is a way to tackle that too.

      Henna alone will give you orange to red color. Never make Henna paste in an iron or metallic container. Use a steel or glass utensil. After that, if you want to go for Henna and Indigo to get dark color like almost natural black, you can get the guide and complete hair care detail from me. That is paid though an you can check the details under Blog Policy.

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  9. Hi Gaganpreet,

    I have sent mail yesterday (19/05). Could you please check and reply so that I will proceed further...

    Thanks

    Vinodhine

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  10. I want to try your method. Kindly share your emailid so that I can write to you.

    ReplyDelete

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