Osteo SAP Boron-Free supplies a comprehensive, synergistic blend of New Zealand bovine microcrystalline hydroxyapatite (MCHA) complex, minerals, vitamins, and amino acids to enhance bone-building osteoblasts and support strong, healthy bones. Osteo SAP Boron-Free provides a daily dose of 875 mg of elemental calcium and 437 mg of elemental magnesium, a 2:1 ratio to provide bone support.