Glutathione vs. NAC: Which Antioxidant Is Best for Your Liver? Life Extension Thyroid Zen Defense 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 Ask the Doctors What do glutathione supplements do? UCLA Health The Hidden Toxin In Your Home! Why You're Constantly Exhausted: Dr. Axe, The Show Ann Shippy MD