Glutathione Is A Sulfur-Containing Peptide Made Up Of Three Amino Acids: Glutamic Acid, Cysteine And Glycine. It Is An Important Water-Soluble Antioxidant That Plays A Role In Protecting The Body From Free Radicals.* Free Radicals Can Cause Oxidative Stress, Which Can Lead To Premature Aging Of Cells. It Also Acts In Amino Acid Transport Pathways.*