Organic MSM Joint Relief Supplement MSM (methylsuofonylmethane) is a source of organic sulfur and an important part of human nutrition. Sulfur is a structural mineral found in healthy connective tissues that aids the bodys natural production of collagen. If glucosamine chondroitin supplements arent providing the joint support youre looking for MSM supplementation may help to encourage the ongoing health of joints and connective tissues. U.S. Doctors Clinical Mega MSM features our Collaplex joint support complex which provides both sulfur and collagen (from poultry) to support joint flexibility and comfort. How Is Clinical Vitamin C Beneficial to Joint Health Vitamin C encourages the bodys natural detoxification processes to promote the health of cells and the structural integrity of joints. Mega MSM makes Vitamin C supplementation easy every serving of Mega MSM includes 20 mg PureWay-C an advanced form of antioxidant Vitamin C that also supports natural cellular defenses against oxidative stress. Made in the United States with Premium Ingredients U.S. Doctors Clinical uses only premium-sourced ingredients chosen for maximum purity and effectiveness. Mega MSM is made in the USA in our cGMP (Good Manufacturing Practices) certified facility that is audited for quality control by independent organizations including NPA NSF and UL.