It is the form of Calcium Orotate 740 Mg,Vitamin D3 200 iU,Zinc 15 Mg,Magnesium 100Mg.( This calcium is the Nobel calcium for the first time in Nepal combination of calcium Orotate, Vitamin D3,Zinc & Magnesium supplement for strength the Bone it has almost 95% absorption rate in comparison to the other calcium supplement )