What is collagen

What is collagen?

Collagen is a popular product in the beauty and skincare industry. The advertisements about it are overwhelming. For example, “To choose collagen with a molecular weight between 1500 and 3000 Daltons, this molecular weight range has the strongest collagen activity. The post-absorption effect is also the best. The molecular weight of the deep-sea fish is less than 3000 Daltons. When choosing a collagen product, try to choose products extracted from deep-sea fish." - It sounds "scientific".


Collagen is a protein widely found in mammals, especially in the skin and bone. Its amino acid composition differs greatly from the needs of the human body and is regarded as an "incomplete protein", that is, its ability to meet human protein requirements is relatively poor.

Collagen is the main component of connective tissue, accounting for 1/3 of the total protein in the body. Collagen is a constituent material of human skin, bones, tendons, cartilage, and blood vessels. Rich in glycine, valine, and hydroxyproline.

Collagen is the main component of human skin. It accounts for 80% of human skin. Medical research shows that hydroxyproline in collagen is a key substance in the formation of human skin.

The human skeleton consists of 1/3 of organic matter and 2/3 of inorganic matter, of which 80% of the organic component is collagen, which maintains the integrity of the bone structure (prevents osteoporosis) and maintains bone biomechanical properties (maintaining bone marrow flexibility) Degree) is very important.

Collagen also maintains the elasticity of the blood vessel wall and prevents blood vessels from rupturing and embolizing. Improves the lubrication of joints, cartilage, and ligaments, and relieves joint stiffness, soreness, and water accumulation.