what does keratin do for skin
Keratin (/ËkÉrÉtÉªn/) is a family of fibrous structural proteins.Keratin is the key structural material making up the outer layer of human skin. It is the key structural component of hair and nails, and it provides the necessary strength and toughness for masticatory organs, such as the tongue and the hard palate.eratin (/ËkÉrÉtÉªn/) is a family of fibrous structural proteins.