We use superior science to make smarter formulas like Jarrow Formulas Glucosamine + Chondroitin, which supplies nutrient support for joint health.* Glucosamine and chondroitin sulfate are components of hyaluronic acid in joint cartilage and synovial fluid. Vitamin C and manganese support the synthesis of collagen and cartilage.* *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.