NATURAL VITALITY OSTEO CALM LIQUID DIETARY SUPPLEMENT IS FORMULATED FOR BONE HEALTH SUPPORT. WE PROVIDE AN EQUAL BALANCE OF CALCIUM AND MAGNESIUM TO ACCOUNT FOR CALCIUM ALREADY IN MOST DAILY DIETS AND TO AVOID A BUILDUP OF EXCESS UNASSIMILATED CALCIUM. OSTEO CALM COMES IN ONE 30 OZ. BOTTLE AND IS GLUTEN-FREE AND NON-GMO.