BoneUp^® is a comprehensive micronutrient formula that provides StimuCal™ MicroCrystalline HydroxyApatite (from free-range New Zealand calves) 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 D₃ and K₂ (as natural MK-7) work together to support calcium deposition into bones.