The hydrolyzed keratin collagen is made from chicken feather or duck feather and other keratin collagen, processed by enzymatic hydrolysis technology to have collagen type Ⅴ. It's good for skin's compatibility and moisture, easily absorbed by hair and it stops the wound of the hair. It will relieve the active agents in the cosmetics and stimulatively effect on hair. It is widely used in high-end cosmetics industry.