Glutathione is a small peptide molecule composed of three amino acids: cysteine, glutamic acid, and glycine. it is produced by every cell of the body, with especially high levels in the liver.* glutathione is critical for healthy immune system function and is necessary for proper detoxification processes.* it also plays a critical role in maintaining cellular health by directly neutralizing free radicals, as well as by maintaining the activity of vitamins c and e.* this product has glutathione in its reduced, active form for optimal bioavailability.*