Glutathione Cell Defense Integrative Therapeutics Lglutathione (GSH) is a tripeptide made of three amino acids (glutamate, cysteine and glycine) and is the body's main intracellular antioxidant. It neutralizes harmful oxygenbased molecules, protects proteins and cellular machinery from Glutathione Depletion and Stalwart Anticancer Activity of Metallotherapeutics Inducing Programmed Cell Death: Opening a New Window for Cancer Therapy ACS Omega Glutathione Synthesis in Cancer Cells Biochemistry (Moscow) Springer Nature Link