MSM (Methylsulfonylmethane) is a non-toxic physiologically active sulfur compound that may be helpful for connective tissue, cartilage, tendons, mucous membranes, nails, hair, and skin damage and repair. MSM (Methylsulfonylmethane) by American Health is organically bound dietary sulfur that occurs in nature. It bonds with moisture, and when any dehydration occurs, the MSM goes with it. [...]