Natural, unesterified E plus mixed tocopherols. New Beginnings Nutritionals vitamin E softgels contain 100% natural, d-alpha tocopherol in its free, unesterified form complemented by non-alpha tocopherols for more complete vitamin E benefit. D-alpha, the most active and best studied form of vitamin E, helps stabilize and protect cell membranes and tissues susceptible to oxidation such as the eyes, lungs, arteries, and skin. D-beta, d-gamma, and d-delta isomers augment this antioxidant activity. Each softgel contains 400 IU natural vitamin E.