Frontiers Potential role of glutathione in evolution of thiol based redox signaling sites in proteins The Benefits of Glutathione Injections and Where to Get Them Burick Center for Health and Wellness 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 Oxidized Glutathione, GSSG Molecule. 3D Rendering. Atoms are Represented As Spheres with Conventional Color Coding:. Stock Vector Illustration of represented, metal: 215585486