Glutathione: The Master Antioxidant Core Med Science 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 is often called the body's master antioxidant, but what does that actually mean? Naturally produced in the body, it plays an important role in supporting cellular processes linked to protection against Liposomal Glutathione Uses and Benefits BodyBio BodyBio UK