Finest Natural-Source Vitamin E Twice as Active** Dietary Supplement Vegetarian Independently Assayed to Guarantee 100% Potency 100% Natural-Source Vitamin E An F.D.A. Regulated Facility**KEY·E tablets are twice as active as synthetic vitamin E, inside our bodies. (by wt.)Vitamin E is an essential nutrient and important antioxidant that promotes a healthy heart and cardiovascular system to help maintain your good health.