Dietary Supplement Antioxidant Protection Purity & Potency Guaranteed Alpha-Lipoic Acid is a valuable antioxidant that helps protect the body against damaging free-radicals. Unlike other antioxidants, Alpha-Lipoic Acid is both fat and water soluble, enabling it to quench free radicals both inside the cells and outside. Alpha-Lipoic Acid also extends the life of other antioxidants, recharging them so that they can continue to protect the body. All Natural Factors products are manufactured in accordance with the Government of Canada's Good Manufactured Practices (GMP), among the highest standards in the world.