Effects of Perming, Combing and Stretching on Hair Keratins

November 2001 in “ PubMed ”

Yan Peng, T Z Que, Zhenmin Zhao

hair keratins perming combing hair stretching keratin loss hair damage

TLDR Perming, combing, and stretching damage hair by reducing keratin.

The study investigated the effects of perming, combing, and stretching on hair keratins, which was relevant for forensic hair identification. It found that these treatments caused hair damage, as evidenced by a significant reduction in keratins within the molecular weight range of 67,000-43,000 daltons. The extent of keratin loss correlated with the degree of hair damage.

View this study on pubmed.ncbi.nlm.nih.gov →

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