Dietary Supplement Dr. Mercola Has Been Providing Quality Products Since 2001 As important as sulfur is for health, many people don’t get enough. MSM is an organic form of sulfur and a potent antioxidant that contains 34% sulfur.  Our MSM Sulfur Complex provides MSM and other valuable ingredients to help you get the sulfur you need: OptiMSM® (Methylsulfonylmethane) – Our manufacturer’s four-stage rigorous distillation process ensures a 99.9% pure and consistent MSM in OptiMSM® This optimal MSM supports joint, cartilage and connective tissue and helps reduce the effects of cellular aging to help you maintain your active lifestyle. Trimethylglycine (TMG) – Also known as betaine, it’s an active component of choline and plays an important role along with folate in methylation. TMG can also act as a molecule to help control the balance of water in your cells and support your cardiovascular health by donating a methyl group to reduce homocysteine into L-methionine. R-Alpha Lipoic Acid (from Sodium R-Alpha Lipoate) – Due to its capability to increase glutathione levels and to be readily absorbed when taken orally, we included alpha lipoic acid (ALA) in this formula. R-Alpha Lipoic Acid (R-ALA) is the preferred form of lipoic acid, which is superior in stabilization and can provide up to 21 times greater bioavailability. Organic Sulfur Vegetable Blend - Naturally-occurring organo-sulfur compounds can be found in certain vegetables. One such group of nutrients called isothiocyanates are derived from sulfur-containing compounds found in cruciferous vegetables like broccoli, kale, and green cabbage. Allicin, another organo-sulfur compound, is the beneficial phytochemical found in garlic.