NATURAL FACTORS Mixed Vitamin E 400IU (180 softgels)Description Vitamin E is a fat soluble vitamin comprised of a group of eight compounds: four tocopherols and four tocotrienols. Natural Factors Mixed Vitamin E contains d alpha tocopherol, along with beta , delta , and gamma tocopherols. D alpha tocopherol, the most potent tocopherol, is natural and more available for use in the body than its synthetic counterpart dl alpha tocopherol. Excellent antioxidant Natural source