Hydrolyzed collagen is at high temperature with proteinase hydrolysis of collagen or gelatin, dual function to the temperature and the enzyme, and the relative molecular mass of the hydrolyzed collagen smaller than that of gelatin, because under the condition of high temperature, protease hydrolysis of collagen peptide bond is random, the hydrolysis of protein liquid composition is very complex, is the relative molecular mass from several thousand to tens of thousands of protein peptide mixture.
      Hydrolyzed collagen is a kind of natural biological product, which is rich in all kinds of bioactive substances necessary for human metabolism, such as peptides, especially rich in hydroxyproline (>12%) necessary for the metabolism of cartilage, skin and hair, and is the main material basis of connective tissue.