NAC vs Glutathione: Which Antioxidant Wins the Battle? Which is better for detoxification, NAC or glutathione? The secret to supermodel skin NAC and NAC Y 111SKIN NAC & Reduced L Glutathione 120 Capsules Zenement NAC is one of those supplements that I always have on hand. It's impressive how broadly supportive NAC is. One time I was taking NAC 500 mg every day for about two Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification