Lipoic Acid is a highly potent antioxidant that counteracts reactive free radicals in the mitochondria, the power plants of cells where energy for all cellular activities is generated. Some scientists believe that mitochondrial free radicals play an important role in human aging, and have theorized that extra amounts of free-radical inhibiting compounds such as lipoic acid may be able to help slow aging. Lipoic acid is also effective in recycling other antioxidants such as Vitamin E back into their original form after they detoxify free radicals. There also is evidence that lipoic acid can reduce glycation damage due to excess glucose in the blood, which may be involved in aging. Lipoic acid consists of two different forms (isomers) that have vastly different properties. The "R" form is the biologically active component (native to the body) that is responsible for lipoic acid's phenomenal antioxidant effect.