The humen skeletal cells can generate collagen thermselves by irritation of hydrolyzed collagen. Hydrolyzed collagen can also help to increase the bone density, reduce the risk and probabilities of fractures. Joyvo bone hydrolyzed collagen is made from high-level bovine bone after crashed and enzyme hydrolysised. Joyvo bone collagen has very good solubility, high bio-activity. It is easy to be absorbed and never bring any anaphylactic reaction.