L Glutathione vs. oxidized vs. Reduced Glutathione Role of glutathione in oxidative stress. During oxidative stress there Download Scientific Diagram Glutathione is the body's primary internal antioxidant, made using the amino acid cysteine, and it helps protect cells from oxidative stress. Beyond detoxification, research shows glutathione is involved in thyroid hormone metabolism, Glutathione an overview ScienceDirect Topics Glutathione The Master Antioxidant With Enormous Benefits Wellness By Rosh Integrative Wellness The antioxidant glutathione ScienceDirect