This high-strength, one-a-day formula combines scientifically researched Glucosamine sulfate with Chondroitin sulfate, MSM and supporting nutrients that may help maintain healthy joints and cartilage. Glucosamine and Chondroitin are the building blocks of healthy cartilage. Studies show that supplementing with the appropriate levels of Glucosamine sulfate may help maintain joint cartilage, ligaments and tendons as well as assist with joint function.