Cosmetic Vitamin E in one of its purest forms, with a minimum of a 70% mixture of alpha, beta, gamma and delta tocopherols in Sunflower Seed Oil.
Although not a preservative, Tocopherol plays a very important role in blends, especially those that contain essential oil. The natural antioxidant properties of Vitamin E stop peroxides from forming in your essential oil blends (whether they be in creams, lotions, oils or gels). These peroxides can be harmful to the skin and the Vitamin E subsequently ensure the freshness and quality of your blends. In addition Vitamin E provides antioxidant properties to your final skincare product.
The ability of Tocopherol to stop the formation of peroxides is diminished by exposure to air. If you are looking for a product which stops the formation of peroxides longer, then Tocopheryl acetate (Synthetic Vitamin E) will give a longer protection, however doesn't have the 100% natural credentials that Tocopherol does.