Bone Maximizer II contains Microcrystalline Hydroxyapatite Concentrate (MCHC) and other vital bone and joint nutrients needed for optimal bone health. MCHC is the actual matrix that makes up much of the bones structure and consists of whole bone proteins, organic components and numerous minerals including calcium, phosphorus and silicon. Research has demonstrated that calcium from MCHC is one of the highest absorbed forms of calcium supplements. In addition, Bone MaximizerII provides Vitamin D3, which is necessary to ensure adequate blood concentrations of calcium, phosphorus, and magnesium. This is essential for regular bone metabolism. Rounding out this formula are vital nutrients needed for maximizing bone health such as Zinc, Boron, Vitamins C and K, MSM, Glucosamine and Silica. Bone Maximizer II is the ultimate nutritional supplement bioengineered to support optimal bone health.