Jarrow Formulas^® Alpha Lipoic Acid is a unique lipid and water soluble antioxidant that is a cofactor in energy production, helping to regulate glucose metabolism.* ALA also promotes the synthesis of glutathione, another powerful antioxidant and a critical component of the body’s endogenous antioxidant network.* Biotin is an essential cofactor that is important for energy production and lipid metabolism.* Biotin is added for optimum ALA activity.