Food grade fish collagen is abstracted from fish scales and fish skins, simulating the mechanism of protein digestion in human body and using advanced directed enzymolysis biotechnology. Its protein content is above 90%, having 18 kinds amino acids, 7 kinds of which are essential for people. Our products are of high protein content, low ash and heavy metal content, small molecular weight, easy absorption and utilization, high biological value, promoting absorption of vitamins and minerals. Our product also can accommodate physiological function of human as directed enzymolysis technology releases a lot of biologic peptides hidden in big molecular collagen.