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 Liposomal Spermidine 30 Servings Purovitalis Vitabright NAC Supplement 600mg x180 Capsules Pure NAC Acetylcysteine for Glutathione Detox Post Workout Gym Supplements Effects of N acetylcysteine, oral glutathione (GSH) and a novel sublingual form of GSH on oxidative stress markers: A comparative crossover study. ScienceDirect