Natrol® optimizes 3 of the most powerful, clinically-tested ingredients that help promote joint flexibility, strength and comfort.* Glucosamine, found in our cartilage, is most often used to ease joint pain caused by arthritis, but it also helps regenerate and rebuild cartilage tissue. Chondroitin, also found in our connective tissues, promotes lubricating fluids for your joints. Third is MSM (Methylsulfonylmethane), a chemical found in the body which helps to maintain the elasticity of joint tissue. MSM is most often used to treat pain and swelling of the joints. With age, the ability to produce some of the nutrients necessary for joint function and cartilage building declines. Natrol's Glucosamine Chondroitin MSM works to reverse these trends.* Our Natrol® facilities have successfully been audited to NSF International GMP Certified NSF/ANSI 455-2 Good Manufacturing Practice (GMP) for Dietary Supplements, which is one of the highest quality audits available in the U.S. in the Dietary Supplement Manufacturing category. Natrol® is dedicated to creating innovative, quality products, to help you maintain good health and thrive in your busy, modern lifestyle.*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any diseases.^Nielsen, xAOC, 52 weeks ending 02/24/24, Sleep Aid Supplements