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 Lung glutathione and oxidative stress: implications in cigarette smoke induced airway disease American Journal of Physiology Lung Cellular and Molecular Physiology American Physiological Society Koshland Inhaled glutathione therapy is once again available to prescribe from Koshland Pharmacy! Delivered directly into the lungs through a nebulizer, this compounded therapy can be self administered at home. Glutathione is Glutathione attenuates diesel exhaust induced lung epithelial injury via NF B Nrf2 GPX4 mediated ferroptosis ScienceDirect Glutathione CHEST