... about 20 days Origin:Porcine,Bovine,Chicken,Bone Hydrolyzed collagen for cosmetics SpecificationOrigin:Porcine,Bovine,Chicken,Bone,Fish Molecular Weight 1000 ... is a water-soluble protein that is the product of enzyme catalyzed of gelatin. Collagen is extensively applied in food, medicine ... the bone. Therefore, collagen can be added into food for children and elderly who are in greater need of calcium ...