![]() ![]() If you develop any irritation or feel unwell after the patch test, do not use the product. Follow the instructions that come with the dye. This usually involves dabbing a small amount of the dye solution behind your ear or on your inner elbow and leaving it to dry. How to avoid a reaction to hair dye Patch testĪlways carry out a patch test before using a permanent or semi-permanent hair dye, even if you are using your regular brand. Learn more about the dangers of black henna tattoos. So, you could develop a life-threatening allergic reaction when you next use PPD hair dye. ![]() These temporary tattoos should be avoided because the paste often contains high levels of PPD, which can increase the risk of an allergic reaction the next time you're exposed to it. You're particularly at risk if you have (or have previously had) a black henna tattoo. If you ignore the safety instructions that come with the dye, you could put yourself at risk of a serious reaction. These products are strictly regulated and there's a maximum limit to the amount of PPD the product can contain. Hair dyes containing PPD are safe to use, providing safety instructions are followed. PPD is the cause of most reactions to hair dye. Many permanent and some semi-permanent hair dyes contain a chemical called paraphenylenediamine (PPD), which is a known irritant and allergen.Äarker coloured dyes contain higher level of PPD. The substance may either be an irritant, directly damaging the skin, or an allergen, triggering an allergic reaction that affects the skin. This means their skin may become red, dry, scaly, bumpy, blistered, or irritated (inflamed) when they come into contact with a particular substance. Some people are prone to a skin reaction called contact dermatitis. Why some people are sensitive to hair dye This page offers advice to anyone who uses permanent or semi-permanent hair dye, especially darker-coloured dyes. Reactions to hair dye are avoidable if you follow some simple safety advice. It's important to be aware of this risk, and know what to do. Many hair dyes contain ingredients that can irritate your skin or cause an allergic reaction. ![]()
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