CONTAINS: Elemental calcium (500mg) & vitamin D3 (250 IU) tablets. RGV Calci's elemental calcium is obtained from nature's richest source, formulated through a stringent manufacturing process. The natural source, coupled with high elemental calcium per tablet, offers superior absorption efficiency. Vitamin D3 improves calcium absorption, enhancing bone health. It is essential to take RGV Calci daily for strong bones.