Three synergistic essential minerals in one convenient formula! This special supplement:* promotes bone health*** may reduce risk of osteoporosis**Each serving contains 1,000mg of Calcium, 400mg of Magnesium and 25mg of Zinc.Bone-Active is formulated to help maintain bone density and strength for people of all ages, in order to support optimal bone health throughout your lifetime.** Bone-Active works by providing your body with an excellent source of high quality Calcium.Contains 250 coated caplets.