Glucosamine /Chondroitin /MSM Ultra Rx-Joint® is a condition-specific formula that targets the three key elements of healthy joints: cartilage, connective tissue, and synovial fluid. Nature’s Plus offers the first formula to combine the joint-supporting benefits of glucosamine, chondroitin and MSM in a proprietary extended-delivery system, allowing for a more natural, gradual absorption for peak nutritional support. MSM is organic sulfur, one of the body’s most critical minerals. Working synergistically with glucosamine and chondroitin, Ultra Rx-Joint’s MSM delivers targeted support for optimal joint lubrication, flexibility and strength. In a special base which provides for the gradual release of ingredients over a prolonged period of time.