Since 1947Extra StrengthShellfish-FreePromotes Health JointsSupports Comfortable MovementNon-GMOCertified Gluten-FreeWheat & Dairy FreeDietary SupplementRegenasure GlucosamineMade with BioCell CollagenOptiMSMGlucosamine supports mobility, range of motion and flexibility. It helps ease occasional joint stress due to exercise or physical activity. Chondroitin supports cartilage and joint function. MSM (Methylsulfonylmethane) provides a natural, bioavailable source of sulfur and promotes joint comfort. MSM works synergistically to support the benefits of glucosamine and chondroitin. This formulation also provides Hyaluronic Acid.