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 PDF] A Glutamyl Cyclotransferase Protects Arabidopsis Plants from Heavy Metal Toxicity by Recycling Glutamate to Maintain Glutathione Homeostasis[C][W] Semantic Scholar Amazon.com: Apex Energetics Glutathione Recycler (K 57) 90 Capsules : Health & Household Glutathione Reduced 500 mg (Jarrow Formulas)