Protein Quantification in Hair Fibers from Different Ethnic Groups.

Author: Nathana Cindy Barros Silva Ramos*; Barbara de Freitas Carli; Alzira Xavier Pinto Dini; Gustavo Facchini; Victória Pinheiro Gonçalves; Jussara Viana da Silva.

Published at: October 01, 2024

https://kosmoscience.com/pdf/protein-quantification-in-hair-fibers-from-different-ethnic-groups.pdf

Abstract Fiber protein loss is directly related to hair damage processes, such as brushing, dyeing, bleaching, among others. The more damaged the hair fiber, the greater the amount of protein lost from the hair. Natural and double bleached Caucasian, Asian and Curly hair tresses were evaluated on the study. A statistically significant protein loss was observed in hair damaged by double bleached in relation to each respective natural condition, in the 3 types of hair evaluated. Also, a reduction in the enthalpy of keratin degradation for Caucasian, Asian and Curly hair tresses. Thus, the new methodology used was able to measure with statistical significance the protein loss of tresses submitted to oxidative damage from double bleached. Data was corroborated by the Differential Scanning Calorimetry (DSC) technique already established in the evaluation of degradation of the protein constituent of the hair.