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In this study, researchers observed that cosmetic peroxide bleaching causes oxidative damage and protein loss in human hair, not only affecting the cuticle but also deeper cortical structures, correlating with bleaching severity.

In this study, hair bleaching with ammonium persulfate and hydrogen peroxide caused significant damage to hair structure and severe skin reactions in rats, highlighting the need for cautious bleaching procedures.

This study found that 10% carbamide peroxide significantly reduced acne lesions compared to a vehicle solution, suggesting it as an effective and safe alternative to benzoyl peroxide for treating mild to moderate acne.

This study assessed three materials—L-arginine, hydrolysed keratin, and cystine-silanol copolymer—ex vivo for their potential to reduce undesirable effects of hair bleaching, such as damage to hair proteins.

This study found that bleaching significantly damages hair structure and increases combing difficulty, while dyeing with emulsifiers can partially reduce damage and improve combability, yet both processes cause notable protein loss.