May help to maintain healthy skin, hair & nails. May also help mentain healthy bones, joints & cardiovascular system.MSM & silica are required for the formation of bone, & collagen in connective tissue (cartilage, tendons, ligaments), & for healthy skin, hair & nails. MSM & silica help maintain the flexibility of joints & arteries. Bio-MSM is a combination nutritional supplement containing MSM (methyl sulphonyl methane) & silica. MSM is a naturally occurring organic sulphur containing substance, which is found in grain products, legumes, eggs & red meat. Vegetal silica, an extract of the herb horsetail grass, is a natural source of the essential trace mineral silicon. Sulphur & silicon are required by the body for the normal growth & development. The level of silica in the body declines with aging.