Figure 6
From: Feather keratin hydrolysates obtained from microbial keratinases: effect on hair fiber
Scanning electron microscopy (SEM) analysis of colored hair A, B –Control; C, D - After the treatment with the enzymatic hydrolysates and straightener at 180°; E, F- After the treatment with the enzymatic hydrolysates without heat. Arrows indicate feather enzymatic hydrolysate deposits.