Glutathione, a tripeptide found in virtually all cells, functions as a reducing agent. The structure of glutathione is: What amino acids make up glutathione? Homework.Study.com Re:Impact of Supplementary Amino Acids, Micronutrients, and Overall Diet on Glutathione Homeostasis orthomolecular medicine , , Frontiers Glutathione: A Samsonian life sustaining small molecule that protects against oxidative stress, ageing and damaging inflammation Glycine and N acetylcysteine (NAC) are amino acidbased nutrients that serve as precursors for glutathione, one of the body's most important intracellular antioxidants. Glutathione plays a central role in reducing oxidative stress, supporting