Mar 6, 2025 · Keratin is a popular ingredient in hair care products, such as shampoos, conditioners, and treatments, due to its ability to strengthen and repair damaged hair. It can help restore the hair's …

It is the key structural material making up scales, hair, nails, feathers, horns, claws, hooves, and the outer layer of skin in tetrapod vertebrates. Keratin also protects epithelial cells from damage or …

Nov 3, 2025 · Keratin is a naturally occurring protein within the body that aids in the health of the skin, hair, and nails. It is also used in hair products.

Dec 15, 2025 · Keratin, fibrous structural protein of hair, nails, horn, hoofs, wool, feathers, and of the epithelial cells in the outermost layers of the skin. Keratin serves important structural and protective …

Oct 23, 2020 · Keratin is a protein that helps maintain the structure of hair, nails, skin, and the lining of the internal organs. Certain nutrients support keratin production.

Jun 2, 2025 · Wondering how keratin treatments work? Ahead, experts help us break down the hair-smoothing process and tell us how it really affects your hair.

Sep 17, 2018 · Keratin is the type of protein that makes up your hair, skin, and nails. Keratin can also be found in your internal organs and glands. Keratin is a protective protein, less prone to scratching or...