How does keratin affect the body?

Keratin is a fibrous protein that plays a crucial role in the structure and protection of various tissues in the body, particularly in the skin, hair, and nails. It provides strength and resilience, helping to form a barrier against environmental damage, pathogens, and dehydration. Additionally, keratin contributes to the integrity of epithelial cells, supporting overall skin health and appearance. Deficiencies or abnormalities in keratin production can lead to various skin and hair disorders.