Effects of perming, combing and stretching on hair keratins / 法医学杂志

ABSTRACT

OBJECTIVE@#Research of the hair damage due to perming, combing and stretching can be of important value for forensic hair individual identification.@*METHODS@#The normal human hairs were treated with perming combing and stretching, and the keratins of the damage hair were analysed by using SDS-PAGGE and laser densimeter.@*RESULTS@#Perming, combing and stretching brought about hair damage; The keratins of the damage hair were obviously reduced at the rang of molecular weight of 67,000-43,000 dalton.@*CONCLUSION@#The loss of the damage hair keratins were increased with the degree of the hair damage.