MSM is also known as methylsulfonylmethane. It is known to enhance the effectiveness of antioxidants and other bioflavinoids. It is used for increased alertness and ability to concentrate as well as improved mood. MSM is often used to prevent and treat muscle cramps in the legs and back due to inactivity and strenuous use. It improves hair and cuticle growth as well as reduces wrinkles from aging. This supplement also seems to help in the body's ability to produce insulin choline and speeds up the metabolizing carbohydrates.