Glutathione Benefits for Your Health and Body Glutathione an overview ScienceDirect Topics Glutathione is an amino acid and that acts as a powerful antioxidant to preserve and protect the brain and other body tissues by protecting them from the damage of free radicals and Glutathione is a critical soldier in our line of defense. We even have mechanisms that recycle and reuse it. But what happens when our toxic burden becomes too high? Our genetic detoxification