Best Hyaluronic Acid wth Chondroitin Sulfate contains patented BioCell Collagen II (US patents 6,025,327; 6,323,319; & 6,780,841). BioCell Collagen II is sourced from chicken sternal cartilage and provides bioavailable, low molecular weight hyaluronic acid. It is standardized to contain 10% Hyaluronic Acid, 20% Chondroitin Sulfate, and 60% Collagen Type II. Hyaluronic Acid and Collagen are vital structural components of the skin that decline as we age, and are partly responsible for the skin's moisture, suppleness and elasticity. BioCell Collagen II contains key components that can help support healthy skin and joint function*.