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 Schematic representation of the structure of a Glutathione Download Scientific Diagram Glutathione: What It Is, Why You Need It, How You Can Increase It The Amino Company Glutathione (GSH) Intracellular Antioxidant, Liver Support