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 …
Why keratin is the backbone of healthy hair and resilient skin
Keratin is often marketed as a cosmetic miracle, but its real importance goes far beyond shiny hair or smoother skin. This structural protein is fundamental to how the body protects itself from ...
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 …
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 …
Where Do You Get Keratin From? Body, Food, and Products
Aug 27, 2025 · Keratin is a fibrous protein that serves as a structural building block in the human body. It provides strength and integrity to various tissues, forming a protective barrier against …
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 …
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.