It is a hydrolysate of keratin protein derived from acid, enzyme, and other method of hydrolysis, which has been applied in many areas including feed and food industry, pharmacy, fertilizers, pesticides, environmental protection, leather industry, and cosmetics. Specifically, this substance can be mixed with polyamide 6 blend to prepare nanofibres for adsorption of chromium (Ⅵ).1 Moreover, this compound may act as an effective component to fabricate shampoo, bath, and shower gel.2 In addition, this chemical can be used as an effective ingredient to produce odor-removing and deodorizing composition.3 Besides, this substance has been demonstrated to function as an useful agent for hair fixatives.4