Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification Smoker lungs aren't a lost cause. NAC and mullein leaf is the stack nobody talks about. NAC thins mucus and bumps glutathione back up. Mullein calms inflamed airways so the morning cough Think You Know Glutathione? Think Again! Metagenics UK S Glutathionylation Controlled Apoptosis of Lung Epithelial Cells; Potential Implications for Lung Fibrosis