Description: Calcium Microcrystalline Hydroxyapatite 1000 mg 250 tabs SERVING SIZE 2 TABLETS Ingredients per 2 tablet serving: Calcium (elemental) 500 mg Phosphorus 260 mg Boron 5 mg Calcium microcrystalline hydroxyapatite 2000 mg, {yielding calcium, phosphorus, approximately 450 mg of other minerals (including magnesium, zinc, potassium, silica, manganese and iron), and 500 mg of protein (as collagen, glycosaminoglycans and substituent amino acids), cellulose, boron aspartate, silica and vegetable stearate}. Dosage: As a dietary supplement, adults take 2 tablets 1 to 2 times daily or as directed by physician.