Allergy Research Group Gluta-Ascorbs is a dietary supplement for antioxidant support. Gluta-Ascorbs contains equal amounts of vitamin C as ascorbic acid and glutathione that work together to protect cells from harmful free radicals. Glutathione is naturally produced in the liver but age can reduce the production. Ascorbic acid is water soluble and the body is unable to retain it for long periods of time. Supplementation with glutathione and ascorbic acid can help maintain proper levels.