An allergic reaction to hair dye is due to a reaction to paraphenylenediamine also known as PPD which is a common ingredient in hair dyes. DermaWorld explains why Hair Colour/Hair Dye causes allergy, how you can it be prevented & what is the hair dye allergy treatment options in Delhi.
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Paraphenylenediamine (PPD), the chemical found in most hair dyes, is the usual suspect for allergic reactions. Paraphenylenediamine or PPD, is found in most commercially produced hair dyes, as is peroxide. When the two react, the PPD becomes partially oxidized and colored; in this state, it can lead to an allergic reaction.
Reactions to PPD can range from mild irritation in the scalp to an allergic reaction that can potentially trigger serious symptoms throughout the body.
A severe allergic reaction that develops within few minutes after applying hair dye is called anaphylaxis, or “anaphylactic shock”.
Signs of anaphylaxis include:
How to avoid a reaction to hair dye.
Always carry out a patch test before using a permanent or semi-permanent hair dye, even if you are using your regular brand.
This usually involves dabbing a small amount of the dye solution behind your ear or on your inner elbow and leaving it to dry. Follow the instructions that come with the dye.
If you develop any irritation or feel unwell after the patch test, do not use the product.
If you do not develop any reaction from the patch test, you can continue to use the dye, but make sure you:
If you develop a reaction to hair dye, even just a mild one, you should stop using products containing PPD altogether, as there’s a risk you could develop a more severe reaction in the future.
Try switching to a safer alternative, such as a non-permanent, PPD-free hair dye – but be aware that it’s still possible to develop a reaction to this.
Henna – a natural product that’s been used in India for hundreds of years and gives a reddish colour to the hair. Be sure you are buying pure henna, and avoid a newer product called black henna, which may have added PPD.
The hair dye allergy may occur after years of no problem. Almost all hair dyes available in Indian markets (even ayurvedic ones) are paraphenylene diamine (PPD) containing hair dyes. They may colour the hair black, brown, red, or any other. Once you develop allergy to this dye, changing brand may not help.
Wash your hair and scalp thoroughly with mild shampoo to remove any excess dye.
Try gently applying an emollient (moisturising treatment) such as aqueous cream to the affected skin.
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