What is glutathione and why must we protect patient access to it? 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, The Benefits of Glutathione Injections and Where to Get Them Burick Center for Health and Wellness Glutathione (oxidized & reduced) Test Cell Culture Media Sartorius eShop Glutathione Injections: Benefits, Dosage, and Costs Hydrate IV Bar Frontiers Potential role of glutathione in evolution of thiol based redox signaling sites in proteins