The feather keratin can also make cosmetics. In recent years, keratin hydrolysates have been used as a new type of natural cosmetic raw materials in some countries, and have been successfully applied to the production of cosmetics such as shampoo and skin care. Palmitic acid is made from feather keratin, which is used as wetting agent for cosmetics such as facial cleanser, skin cream, lipstick and so on. In addition, the keratin gene was transferred into cotton and the transgenic cotton was obtained. The toughness of the cotton was significantly higher than that of ordinary cotton.
