LIFE EXTENSION Super R-Lipoic Acid defends against oxidative stress produced by high glucose levels through the use of Alpha-lipoic acid, which has two different kinds that have very different properties. An "R" form is the biologically active component that causes lipoic acid's antioxidant effect. The "R" form is created naturally in the body, but some people may not be creating enough to prevent against oxidative stress. The "S" form creates a chemical manufacture and is not extremely biologically active. LIFE EXTENSION Super R-Lipoic Acid combines "R" and "S" in a 50:50 ratio. This product works within 10 - 20 minutes, which is much faster than the leading Lipoic acid supplements. LIFE EXTENSION Super R-Lipoic Acid is a convenient way to prevent oxidative stress.