MSM (MethylSulfonylMethane) is an abbreviation of methylsulfonylmethane, an organic form of sulfur. The chemical formula of MSM is CH3SO2CH3. It is the form in which sulfur is biologically active and appears in nature in all living organisms.
Sulfur is called nature's "beauty mineral" because it keeps skin smooth and youthful and hair glossy. Sulfur is necessary for the production of collagen and keratin, proteins necessary for the health and maintenance of skin, nails and hair'