Glutathione: The Master Antioxidant Core Med Science Glutathione acts as an important antioxidant in your body. This means it helps combat free radicals aka molecules that can damage your body's cells. Glutathione levels in the body may be reduced Understanding Glutathione Deficiency Invigor Medical Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification Reduced glutathione (A), oxidized glutathione (B), and their ratio (C) Download Scientific Diagram Reduced Glutathione Capsules