Sundown® Naturals Alpha Lipoic Acid is an excellent antioxidant choice.* ALA is known as the “universal antioxidant” because it works in both the water-soluble and fat-soluble compartments in cells, and helps other antioxidants do their part.* One Alpha Lipoic Acid capsule a day can help support overall good health.*​ Alpha Lipoic Acid supports the regeneration of glutathione, one of the body’s primary antioxidants.* Alpha Lipoic Acid is often called the “universal antioxidant.”