Bone-health system. Support bone density. Provides skeletal nutrition. BoneUp is a comprehensive formula that provides StimuCal MicroCystalline HydroxyApatite and micronutrients to support bone health. StimuCal is a natural source of calcium shown to support bone mineral density better than calcium carbonate. StimuCal also provides bone proteins, including type I collagen. Vitamins D, and K2 (as natural MK-7) work together to support calcium deposition into bones. Mineral amount are elemental.