Skeletal Strength (Formerly SKL) [Structural] is a key product formulated to provide nutrients necessary for proper structural system function. Skeletal Strength provides nutrients the body uses to manufacture bones, muscles, ligaments, tendons and skin. These nutrients counteract many of the forces that rob the structural system of strength, flexibility under stress and the ability to replenish the blood supply. Four tablets contain: % DV Vitamin A (beta-carotene) 500 IU 10 Vitamin C 150 mg 250 Vitamin D 200 IU 50 Vitamin B6 (pyridoxine HCl) 5 mg 250 Vitamin B12 (cyanocobalamin) 30 mcg 500 Calcium 600 mg 60 Iron (ferrous gluconate) 3 mg 17 Phosphorus 192 mg 20 Magnesium 600 mg 150 % DV Zinc 15 mg 100 Copper 2 mg 100 Manganese 1 mg 50 Potassium 100 mg *Boron 1 mg **Daily Value not established All these are contained in a base of: Horsetail herb Betaine HCl Papaya fruit Parsley herb Pineapple fruit Valerian root Licorice root. Take 2 tablets with a meal twice daily. Stock No. 1806-7 (150 tabs)