Keratin (/ ˈ k ɛr ə t ɪ n / [1] [2]) is one of a family of structural fibrous proteins also known as scleroproteins. It is the key structural material making up scales , hair , nails , feathers , horns , claws , hooves , and the outer layer of skin in vertebrates.

Keratin products and treatments can help strengthen your hair and make it look brighter and feel softer. You can help your body produce keratin by eating keratin-rich foods. What is keratin? Keratin is a protein that helps form hair, nails and your skin’s outer layer (epidermis).

2023年5月28日 · Keratin is a fibrous protein that belongs to the family of scleroproteins, characterized by their tough and insoluble nature. Hair keratin, specifically, is a specialized form of keratin that provides the structural framework for hair fibers. Structure of Hair Keratin. Hair keratin consists of long chains of amino acids, which are the building ...

2025年1月11日 · 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 functions, particularly in the epithelium.

2018年9月17日 · 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...

2020年8月17日 · Keratin is a type of protein that boosts the health of your hair, skin, and nails. Here are 10 foods that promote keratin production.

2023年10月6日 · 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.

2022年2月11日 · Keratin isn't just one protein—it's a mixture of different amino acids. And there are various types of keratin (mm-hmm, just like collagen again). You'll find keratin in—and it's extracted from—animal horns, hooves, wool, and feathers.

2025年1月14日 · Keratin, the structural protein of epithelial cells in the outermost layers of the skin, has been isolated from hair, nails, hoofs, and feathers.

2023年8月18日 · Keratin is a natural fibrous structural protein that forms an integral part of human hair, nails, and skin and is characterized by its intricate secondary structure.