Found in many foods such as fruits and vegetables, MSM (methylsulfonylmethane) is believed to be a natural building block for proteins and essential in the development of tissue throughout the body. MSM has had many positive results. MSM, also known as methylsulfonylmethane, is an incregly popular source of nutritional sulfur. It is believed that MSM is a necessary building block for proteins, particularly those found in muscles, skin, and connective tissue. MSM is a natural organic sulfur compound that can be found in small amounts in everyone's blood, as well as in many foods such as fresh raw produce, but is lost once the food is processed. Now available in a concentrated supplement, it has many health benefits. Opti MSM. Made in the USA.The only GRAS-designated, Kosher and Halal certified, non-GMO, gluten-free, allergen-free, non-shellfish-derived, vegan MSM backed by extensive toxicology data. Increases flexibility and mobility Normalize inflammation, healthy aging, supports mobility. For occasional muscle pain, joint pain, and healthy aging. Great for healthy skin, nails and hair. MSM benefits overall joint health and normal range of motion to stay active. MSM plays a role in maintaining the cushion between joints to support mobility and protect healthy cartilage. It also supports synovial fluid production to keep joints lubricated. OptiMSM is the premier product for healthy joints and mobility. Sulfur, a key component of OptiMSM, supports joint, cartilage and connective tissue to sustain an active lifestyle. For 30 years, OptiMSM is quality. NWC Naturals Inc. will not compromise on MSM quality, and neither should you. Choosing Ultra-Pure MSM from NWC Naturals Inc. will guarantee you are getting genuine OptiMSM.Best Sellers Rank: See Top 100 in Health & Household. Package Information: Bottle. Age Range (Description): Adult. Product Benefits: kosher. Diet Type: Vegan. Special Ingredients: Opti-MSM made in the USA. Item Dimensions LxWxH: 6 x 5 x 4 inches. Item Form: Capsule. Unit Count: 300 Count. Primary Supplement Type: mineral. Brand: NWC Naturals Inc. : B001BFD8PW. Manufacturer: NWC Naturals Inc. Date First Available: July 18, 2008. Item model number: C3MSM. Product Dimensions: 6 x 5 x 4 inches; 12.8 Ounces. Is Discontinued By Manufacturer: No.