Country Life MSM (500mg) 90 tabs is an excellent source of sulfur supplementation for optimum collagen production, joint lubrication, and anti-aging effects. This formula contains organic sulfur which helps in several cell functions such as protein synthesis, enzyme reaction, and tissue respiration. The essential role of sulfur in the body revolves around hydration, detoxification, energy production, metabolism, and other structural functions. Sulfur is also known to promote healthy skin, hair, and nails, as well as slow down the signs of premature aging.