Glutathione is a naturally occurring tripeptide composed of glutamate, cysteine, and glycine, functioning as one of the central intracellular antioxidant molecules in mammalian biology. It has been studied extensively in longevity and cellular research for its relationship to redox balance, oxidative stress signaling, detoxification pathways, and mitochondrial function across multiple physiologic systems. Its thiol-containing cysteine residue is structurally central to its electron-donating and antioxidant behavior within cellular environments. Sterile solution, 10mL vial. Sold at 600mg and 1500mg per vial. For research use only.