Keratin - Wikipedia
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 …
Keratin: Protein, Structure, Benefits, Uses. Hair Keratin Protein.
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 …
Keratin: Types, Structure, Benefits, Uses, and Safety
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.
Keratin | Definition, Function, & Facts | Britannica
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 …
Keratin-rich foods and their benefits - Medical News Today
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.
Before and After: How a Keratin Treatment Changes Your Hair
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.
The Science Behind Keratin in Human Skin and Hair
Jul 18, 2025 · Keratin is a fibrous structural protein predominantly found in epithelial cells. It is responsible for forming protective layers on the surface of the skin, hair, nails, and other …
What Is a Keratin Treatment? Benefits, Risks, and Costs Explained
Sep 24, 2025 · A keratin treatment is a semi-permanent hair straightening method that aims to smooth and straighten frizzy or curly hair, says Ross Kopelman, MD, a board-certified hair …
Keratin: Benefits and Uses for Hair - Healthline
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 …
What Is Keratin: Essential Protein for Hair and Skin
What is keratin and why is it important for hair, skin, and nails? Keratin is a protective protein that forms the main structural component of hair, skin, and nails.