BioCell Collagen II is a low molecular weight, water-soluble glycosaminoglycan complex completely derived from chicken sternum cartilage and is standardized to contain at least 20% chondroitin sulfate and 10% hyaluronic acid (50 mg per capsule). Hyaluronic acid provides the fluid matrix for joint lubrication, skin hydration, and skin repair.* Unlike ordinary collagen products, patented BioCell Collagen II is a rich source of bioavailable hyaluronic acid and is clinically proven to support joint health.