Can Whey Protein Increase Your Glutathione Levels? The Organic Protein Company Hydrogen Water vs. Glutathione Reductase (GR): Which Is Better? Evolved H2O Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification Glutathione is a small protein made of three amino acids. It is often called the master antioxidant because it helps regenerate other antioxidants like vitamin C and vitamin E. Key Benefits