NAC vs Glutathione: Differences, Similarities And Health Benefits Is Glutathione the Master Antioxidant? Heres What Science Says Antioxidant glutathione discovered to play a key role in proper protein folding Glutathione is often called the body's master antioxidant for a reason It plays a central role in protecting cells from oxidative stress, supporting detoxification pathways, and maintaining immune function. As levels