Fish collagen peptide is a high molecular functional protein. Collagen is the main component of the skin, accounting for 80% of the dermis of the skin. It forms a fine elastic mesh in the skin, which firmly locks in moisture and supports the skin. The regeneration rate of collagen in human body after gastric juice digestion cannot be verified. Among them, belongs to the world's top collagen and is the most abundant protein in animals. It is an insoluble fibrous protein and a type of extracellular matrix, which mainly exists in connective tissue.