Vitamin E is a fat-soluble vitamin that contains a family of compounds called tocopherols, including d-alpha, beta, delta and gamma. Naturally occurring tocopherols (d-alpha, beta and gamma) are the most biologically active forms of vitamin E. Vitamin E is crucial to proper cellular function; it protects and supports a wide range of physiological functions through its free radical scavenging activity.
An effective chain-breaking antioxidant and free radical scavenger, vitamin E is considered the first line of defence against lipid peroxidation. It protects the integrity of the body's cellular membranes, and has the ability to unite with oxygen and prevent it from being converted into toxic peroxides. Vitamin E (with mixed tocopherols) is designed to promote antioxidant protection.