†Highly absorbable form of calcium, reduces risk of osteoporosis; combined with magnesium to support bone and cardiovascular health *Calcium microcrystalline hydroxyapatite contains a mixture of bone minerals in their natural ratios, as well as residues of matrix, proteins, and glycosaminoglycans. Magnesium, like calcium, is an essential bone matrix mineral that promotes healthy bone metabolism. Supplementation with calcium and magnesium provides synergistic support for bone health. Magnesium also supports cardiovascular health by helping to maintain healthy levels of cellular and plasma electrolytes, including calcium and potassium. Additionally, calcium and magnesium may help to promote healthy lipid metabolism. This formula provides a 2:1 ratio of calcium to magnesium. Calcium microcrystalline hydroxyapatite combined with magnesium citrate provides dual support for bone mineral composition and heart health. †Risk factors for osteoporosis include sex, race, age and inadequate calcium intake. Populations at highest risk for osteoporosis include Caucasian, Asian, postmenopausal women, and elderly women and men. Adequate calcium intake throughout life is linked to a reduced risk of osteoporosis, as calcium helps to optimize peak bone mass during adolescence and early adulthood in conjunction with exercise and healthy diet. Calcium intake greater than 2,000 mg per day has no further known benefit to bone health.