Joint Support Formula with Glucosamine, Chondroitin & MSM is a synergistic blend of nutrients designed to support healthy joint tissue through the maintenance of cartilage structure and function.* This special formula combines glucosamine to aid in the metabolism of healthy connective tissue, chondroitin sulfate and hyaluronic acid (as sodium hyaluronate) to help provide vital cartilage resilience and other nutrients to support joint regeneration.*