What is glutathione? Know as the most important antioxidant in the body, glutathione is an essential antioxidant manufactured in all cells, but primarily in the liver. It is essential because it Blood Plasma Quality Control by Plasma Glutathione Status Benefits of Clinically Tested Setria Glutathione Just Glow Induction of Oxidative Stress by Glutathione Depletion Causes Severe Hypertension in Normal Rats Hypertension Real Time Monitoring of Glutathione in Living Cells Reveals that High Glutathione Levels Are Required to Maintain Stem Cell Function: Stem Cell Reports