Keratin is a type of Protein Found in __________?

Keratin is a type of Protein Found in __________?

A. Skin Fiber
B. Nails
C. Blood Cells
D. Muscle Cells

Keratin is a type of structural protein found in your hair, skin, and nails. It’s especially important for maintaining the structure of your skin, supporting wound healing, and keeg your hair and nails healthy and strong.