Since 1947 D-Alpha Tocopherol Plus D-Gamma Tocopherol, D-Delta Tocopherol and D-Beta Tocopherol Natural Antioxidant Gluten, Wheat & Dairy Free Dietary Supplement Vitamin E is an essential nutrient and is the body's primary, fat-soluble antioxidant. Vitamin E provides nutritional support for the cells, including heart muscle cells, and the immune system. It helps fight cell damaging free radicals that cause oxidative stress in the body, which may contribute to the premature aging of cells. This formulation provides natural source vitamin E as d-alpha tocopherol, and mixed tocopherols including d-gamma, d delta and d-beta tocopherols. It is offered in oil-based softgels to promote optimal optimal absorption and assimilation. This product contains 670 mg of vitamin E. This can also be masured as 1000 IU.