Basic Preventive® 4 is a comprehensive, highly concentrated vitamin-mineral-trace element supplement containing more than 30 essential nutritional ingredients. Basic Preventive ® is more than just another multivitamin supplement. It is a potent antioxidant formula with natural beta-carotene (from D. salina) and natural vitamin E; a high-potency B-complex supplement; a significant source of bioavailable calcium and magnesium; and a full-spectrum trace element supplement. This formula is copper free.