We use superior science to make smarter formulas like Jarrow Formulas® BoneUp. It is a comprehensive micronutrient formula that provides StimuCal MicroCrystalline HydroxyApatite (MCHA) and micronutrients to support bone health, bone density, and skeletal nutrition.* StimuCal MCHA is a naturally derived source of calcium shown to support bone mineral density better than calcium carbonate.* StimuCal also provides bone proteins, including type I collagen.* Vitamins D3 and K2 (as MK-7) are included to support calcium deposition into bones.* *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.