Glucosamine + Chondroitin + MSM combination provides efficacious quantities of glucosamine sulfate, chondroitin sulfate, & MSM combined with vitamin C & manganese for optimizing joint health.* Glucosamine & chondroitin sulfate are essential components of joint tissue involved in the production of hyaluronic acid, which is an important component of the synovial fluid that lubricates the joints, & a major component of the connective tissue in the skin.* Methylsulfonylmethane (MSM) is an organic source of sulfur, an antioxidant mineral & critical component of structural body tissues such as cartilage. The sulfur from MSMis incorporated into joint tissues as glycosaminoglycans (or mucopolysaccharides) such as chondroitin sulfate & hyaluronic acid.* Vitamin C & manganese are required for the synthesis of collagen & cartilage.* Jarrow FORMULAS® Glucosamine + Chondroitin + MSM Combination is Joint Sustain™ nutrition, providing a SODIUM FREE form of GS stabilized with only potassium chloride (KCl). For best results, use with Jarrow FORMULAS® Jarro Sil™, the biologically Activated Silicon™. Keep out of the reach of children. * These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Suggested Usage Take 4 capsules per day, or as directed by your qualified health care consultant. NOTE: DO NOT use if allergic to shellfish. If you have a medical condition, are pregnant, lactating, or trying to conceive, are under the age of 18, or are taking medications, consult your health care practitioner before using this product. Other Ingredients Magnesium stearate (vegetable source), cellulose, & silicon dioxide. Capsule consists of gelatin. Contains: Shellfish (shrimp). No wheat, no gluten, no soybeans, no dairy, no egg, no fish, no peanuts/tree nuts.