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 Glutathione peroxidase 3 localizes to the epithelial lining fluid and the extracellular matrix in interstitial lung disease Scientific Reports 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 peroxidase 3 localizes to the epithelial lining fluid and the extracellular matrix in interstitial lung disease Scientific Reports