Keratin is a structural protein and the main component of hair, horns, feathers, wool and stratum corneum of the skin. The distinctive feature of this protein compared to other similar proteins is that it is rich in the amino acid cysteine. The amount of cysteine in human hair is between 14-15%, which makes the hair strong. Because of these properties, keratin acts as both an internal structural protein and an external protective protein. keratin is able to reduce the evaporation of water from the transepidermal layer. Due to the colloidal protective effect, Keratin reduces the irritation caused by the use of detergents and is effective in treating damaged hair. Also, this protein is effective in maintaining skin moisture The hydrolyzed keratin produced by the company is cosmetic grade and has no unpleasant odor and is widely used in skin and hair care products as well as detergents such as shampoo. This product is produced in both powder and liquid forms with a protein percentage of over 95%.