The Chemistry Mechanism of Hair Dyes

December 2022 in “ Middle East Journal of Science ”

Arzu YILDIRIM, Nur Belinda DEMİR, Nur Belinda DEMİR, Büşra Nur ERKOL, Çağla ÖZSU, Gülşah EŞLİK AYDEMİR, Mine MUSTAFAOĞLU, Murat Kizil, Neslihan Nubar Ayhan, Sevil EMEN

hair dyes temporary hair dyes permanent hair dyes oxidative hair dyes precursor coupler hydrogen peroxide alkaline medium hair color hair coloring

TLDR Permanent hair dyes use chemicals that react with hydrogen peroxide to create color.

Hair dyes, used since ancient times, are categorized into temporary and permanent types based on their longevity and chemical composition. Permanent dyes, known as oxidative hair dyes, involve non-colored chemicals that oxidize to produce color. These dyes contain precursor and coupler parts that form the dye molecule when combined with hydrogen peroxide in an alkaline medium. This review discusses the formulations, mechanisms, and potential for repairing damaged hair and new applications.

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