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 Top 10 Natural Sources of Glutathione for Healthy Skin Liquid chromatographytandem mass spectrometry assay of reduced and oxidized glutathione and main precursors in mice liver ScienceDirect Glutathione, your master antioxidant.