Nature's Plus proudly introduces Advanced Therapeutics Glucosamine Chondroitin MSM Ultra Rx-Joint, a condition-specific formula that targets the three key elements of healthy joints - Cartilage, Connective Tissue and Synovial fluid. Each mega-potent tablet merges together the clinically proven powers of glucosamine, chondroitin and methylsulfonylmethane (MSM) for results you can feel.