What is the role of keratin in the skin?

Keratin are important for the structural integrity, cell function and the movement and the proliferation of the cell and healing of the wound. Different tissues in the body contains different combinations of the keratin proteins which play specialized roles.

Keratin has two major function in the skin -

To hold the cells present in the skin together and form a barrier It means the outermost layer of the skin which protects it from environment. It also prevents the tearing of the skin.