...Hyaluronic Acid with Chondroitin Sulfate contains patented BioCell Collagen (US patents 6,025,327; 6,323,319; 6,780,841; 7,091,180; 7, 799, 348). BioCell Collagen is sourced from chicken sternal cartilage and provides bioavailable, low molecular weight hyaluronic acid. It is standardized to...