Fish collagen 1.Material: natural fish skin collagen 2.Grade: Food grade/Cosmetics grade 3.Certificate:ISO9001-2008 fish collagen2. Specifications 3. Applications (1) Collagen can be used as healthy foods; it can prevent cardiovascular disease; (2) Collagen can serve as a calcium food; (3) Collagen can be used as food additives; (4) Collagen can be widely used in frozen food, beverages, dairy ...