Additional Antioxidant Activity - Our antioxidants supplement contains only alpha lipoic acid and vitamin c in a vegetarian capsule. In cells, this reduced form of ALA offers enhanced antioxidant activity.*.Foundation For Other Antioxidants - An ALA supplement works to regenerate antioxidants such as glutathione, vitamin C, and vitamin E, making alpha lipoic acid a double duty antioxidant.*.Purity and Quality - Our vitamins are free of fillers, binders, preservatives, and artificial colors. No gluten, egg, nuts, or magnesium stearate goes into our alpha- lipoic acid supplements. Vegetarian capsules..Carefully Sourced ALA and Vit C - Metabolic Maintenance's alpha lipoic acid capsules use only the finest ALA manufactured in Europe where it has a long history of use.*.Physician's Choice in Vitamin C Supplements - The health care professional's choice since 1984. We use current research, clinical studies, and third-party testing at all stages of development. Alpha-lipoic acid you can trust, at an exceptional value.