DEVA Calcium Magnesium Plus provides key nutrients to help maintain normal structure and development of bones. Our product includes four different absorbable sources of calcium as well as other minerals, vitamins, and nutrients to increase the absorption and retention of calcium by the body. DEVA Vegan Calcium Magnesium Plus is one of the most complete calcium formulas available. By combining Calcium (in Amino Acid Chelate, Carbonate, Malate and Citrate forms), Magnesium, Vitamin D, Vitamin K, Zinc, Boron, Copper, and Vitamin C, we've specifically designed this product to support the body with the essential nutrients needed to maintain strong bones and healthy calcium levels. DEVA Vegan Calcium Magnesium Plus also contains Horsetail Herb Silica Extract, Inulin (Prebiotic) and L-Lysine (Amino Acid) which are ingredients that help increase the bioavailability of calcium.