Glutathione and Vitamin C: Do They Work Together? Life Extension Glutathione Supplementation: The Antioxidant Your Body Needs Glutathione is often seen as just another antioxidant. Or simply a detox. It's much more than that. Glutathione is the body's master antioxidant, essential for cellular protection, immune defense and recovery. Its Several lines of antioxidant defense against oxidative stress: antioxidant enzymes, nanomaterials with multiple enzyme mimicking activities, and low molecular weight antioxidants Archives of Toxicology Springer Nature Link