Understanding Antioxidants: Roles and Benefits Explained View of Oxidative stress in intensive care unit patients: a review of glutathione linked metabolism and lipid peroxidation The Southwest Respiratory and Critical Care Chronicles 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 7 Surprising Benefits of Glutathione Tablets for Skin, Immunity & More