bind to keratin fibers, strengthening hair and nails
Keratin-Associated Proteins (KAPs) are a group of proteins that bind to keratin fibers, which are the structural components of hair, nails, and the outer layer of skin. They play a crucial role in the formation and strength of these keratin structures by cross-linking with keratin, thereby enhancing the rigidity and resilience of hair and other keratinized tissues.