Adverse Effects of Hair Care Products Among Users

July 2015

Dominique Tennstedt, Anne Herman, Jean‐Marie Lachapelle

TLDR Hair care products can cause skin irritation and allergies.

The document discussed the adverse effects of hair care products used by professionals, which included irritant dermatitis and allergic contact eczema affecting various areas such as the scalp, neck, forehead, and cheeks. Key allergens identified were paraphenylenediamine (PPD) in hair dyes, glycerol monothioglycolate (GMTG) in acid perms, and ammonium persulfate in bleaching agents, which could cause contact urticaria. Other allergens mentioned included cocamidopropyl betaine in surfactants, preservatives, fragrances, and minoxidil.

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