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Articles about PPD allergy are among the most popular on this website, especially the listing of PPD-free hair dye and colour alternatives, which showcases the wide variety of options you can try if you are sensitive to the chemical para-phenylenediamine,…
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If you have allergy to PPD / paraphenylenediamine or are looking to color or dye your hair without using PPD you will find that most PPD-free blends fall into one of three categories. The key exception is the innovative Hairprint…
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With the trend for beards in men showing no signs of slowing down, it’s not surprising that many guys are looking at options for dyeing them a different color, especially if they begin to turn grey — but which are…
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Occasional reports have been surfacing during the Covid pandemic of an increased incidence of allergic responses to hair dye products, and the issue arose again this week, widely reported in the mainstream media, including by the BBC. I have written…
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PPD, or paraphenylenediamine, is a chemical used in most permanent hair dyes, especially the darker types. When mixed with an oxidiser (typically hydrogen peroxide) and applied, it penetrates shafts of hair and transforms into an oxidised form whose molecules are…
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Research was published in Contact Dermatitis looking at the instructions hair dye manufacturers give consumers about performing an allergy self-test before coloring their hair. It was a follow-on from a 2011 study, which found great variability in the instructions given, and whose…
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