Collagen is a high molecular functional protein. It is the main component of the skin, accounting for 80% of the dermis of the skin. It forms a fine elastic network in the skin, firmly locks in moisture and supports the skin. Collagen is a spiral fibrous protein composed of three peptide chains. It is also the most abundant protein in the human body. It is widely distributed in connective tissue, skin, bones, interstitial cells of internal organs, muscle cavity, ligaments, sclera and other parts, accounting for about 30% or more of the total protein in the human body. It is rich in collagen-specific amino acids such as proline and hydroxyproline that the human body needs. It is an important component of the extracellular matrix of human cells, especially skin cells. Therefore, collagen is also the most popular beauty and health care product in the beauty industry of developed countries.
