Glutathione metabolism in cardiac ferroptosis. N acetylcysteine or Download Scientific Diagram Glutathione vs. NAC: Which Is Better for You? NAcetylcysteine (NAC) is More Than Just an Antidote. NAC replenishes glutathione (GSH), breaks mucus disulfide bonds, and modulates glutamate. That's why it works in the liver, lungs, and brain. Owais Top 9 Benefits of NAC (N Acetyl Cysteine)