All About NAC (N acetylcysteine): What it is and what benefits it has Zenement Glutathione vs. NAC: Which Antioxidant Is Best for Your Liver? Life Extension L Glutathione VS NAC: Differences, Similarities, and Uses Individuals with MTHFR mutations and slow COMT activity can generally take N acetylcysteine (NAC) and glutathione, but there are some important considerations: ## N Acetylcysteine (NAC) * **Benefits**: NAC supports the production of glutathione,