Ultra BoneUp is an ultra bone-health system that provides StimuCal MicroCrystalline HydroxyApatite (from free-range New Zealand calves) and micronutrients to support bone health. StimuCal MCHA 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 from fermentation) work together to support calcium deposition into bones. Ultra BoneUp also includes JarroSil Activated Silicon for ultra support.