(with mixed tocopherols) *Naturally occurring tocopherols (d-alpha, beta and gamma) are the most biologically active forms of vitamin E. Vitamin E, a powerful chain-breaking antioxidant and free radical scavenger, is considered the first line of defense 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 plays a beneficial role in the cellular respiration of muscles, especially cardiac and skeletal muscles. It also supports healthy blood vessel function. In addition, vitamin E plays a role in nucleic acid and protein metabolism, mitochondrial function, and hormone production. Vitamin E is crucial to proper cellular function; it protects and supports all physiological functions through its free radical scavenging activity, especially cardiovascular functioning.