Supports Joint Health Promotes Joint Mobility Dietary Supplement Produced in a Certified Facility - GMP - Good Manufacturing Practices Glucosamine Sulfate (GS) is a sugar and nitrogen compound found in synovial and connective tissue. Chondroitin Sulfate (CS) is a similar molecule also found in high concentrations in joints and connective tissue. Methylsulfonylmethane (MSM) is a natural source of sulfur and gets utilized in connective tissue formation (hair, skin, nails and lungs), the production of glutathione and in the detoxification process. Sulfur is structurally and functionally important in more than 150 compounds in the body including enzymes, hormones, antibodies and free radical scavengers. Together, these compounds provide critical building blocks for joints, supporting mobility and comfort. Supports joint mobility. Promotes healthy connective tissue. May help joint flexibility and comfort.