Glutathione Injections: The Master Antioxidant for Health & Vitality: Envizion Medical: Wellness Center FDA highlights concerns with using dietary ingredient glutathione to compound sterile injectables FDA Glutathione is called the master antioxidant because it helps protect every cell in your body from oxidative stress., But levels decline with stress, aging, toxins, and illness., Our Glutathione IV Before and After Glutathione Injection: What to Expect