Alpha-lipoic acid is a sulfur-containing fatty acid that performs vitamin-like roles in the body but since the body produces lipoic acid on its own, it is not classified as a true vitamin. It functions as a key factor in the cellular process that metabolizes glucose for energy production. Pure R-Lipoic acid is a very unstable molecule that has a tendency to polymerize with exposure to heat, light, and moisture. BioEnhanced® Na-RLA is a stabilized form of R-Lipoic acid that won’t degrade at high temperatures. This product is Gluten Free, Non-GMO, Vegetarian, Vegan.