L-GLUTATHIONE REDUCED is tripepetide that is composed of glycine, L-cysteine and L-glutamine. It acts as an antioxidant. It neutralizes free radicals which in turn prevents liver and kidney tissue damage caused by acetaminophen. It is used as a supplement in persons having metabolic disorders and is also used in the treatment and prevention of angina symptoms and chronic fatigue syndrome. It may help in relieving chronic bronchitis symptoms. Moreover, it supports immune system and has been used to treat some cancers and HIV/AIDS.