Keratin (/ ˈkɛrətɪn / [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 among vertebrates. Keratin also protects epithelial cells from damage or stress.

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 ...

2022年6月9日 · 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).

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.

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.

2018年9月17日 · Keratin is a protective protein, less prone to scratching or tearing than other types of cells your body produces. Keratin can be derived from the feathers, horns, and wool of different...

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.