Glutathione: Uses, Side Effects, Precautions and Dosage 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 FDA highlights concerns with using dietary ingredient glutathione to compound sterile injectables FDA 5 Common Mistakes to Avoid While Using Glutathione in Skincare Analysis of glutathione: implication in redox and detoxification ScienceDirect