Glutathione an overview ScienceDirect Topics Glutathione is such a critical soldier in our line of defense that our bodies make it themselves. We even have mechanisms that recycle and reuse it. But what happens when our toxic Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification Assay for quantitative determination of glutathione and glutathione disulfide levels using enzymatic recycling method Nature Protocols