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 Disturbances of the Lung Glutathione System in Adult Guinea Pigs Following Neonatal Vitamin C or Cysteine Deficiency Frontiers Inhibiting lung lining fluid glutathione metabolism with GGsTop as a novel treatment for asthma Frontiers Glutathione: A Samsonian life sustaining small molecule that protects against oxidative stress, ageing and damaging inflammation Oxidative Stress and Inflammation in Acute and Chronic Lung Injuries Maximizing Your Lung Health with Nebulized Glutathione