The facts about PPD and Hair Colorants
From The Cosmetic, Toiletry and Perfumery Association (CTPA) What is PPD? PPD (paraphenylenediamine or p-phenylenediamine) is an ingredient used in permanent (also known as oxidative) hair colorants. PPD is permitted as a hair colorant ingredient by the European Cosmetics Directive, 76/768/EEC (now re-cast as the Cosmetics Regulation No. 1223/2009). This means PPD is allowed for [...]