The main type of protein found in human skin is keratin. It is a fibrous protein that helps form hair, nails, and the outer layer of skin (epidermis). Keratin is crucial for supporting the skin, healing wounds, and keeping hair and nails healthy.
While keratin is the most prevalent, other proteins like hornerin are also present in human skin. Hornerin is a complex protein found in the skin's outer layer and is thought to contribute to skin barrier function.
The presence of collagen and elastin, both fibrous proteins, provides structural support and elasticity to the skin. Additionally, various other proteins contribute to the skin's function, including enzymes involved in metabolism and antimicrobial peptides that help defend against infections.
