Contains 4 specially chelated essential minerals that work synergistically for better absorption and effectiveness. Calcium, Magnesium, Zinc and Boron play a significant role in bone metabolism and help maintain bone mass at the highest level. Magnesium and Boron are useful for better bone mineralization and help in the smooth circulation of Calcium. Those suffering from back pain and women with menstrual irregularities can benefit from calcium and zinc. It is also essential for arthritis, osteoporosis and general bone diseases.