Anti human lung cancer activities and survey of glutathione reductase and glutathione S transferase inhibition properties with molecular modeling studies of 2 hydroxy 5 methyl 3 nitroacetophenone: a pre clinical trial study Glutathione system enhancement for cardiac protection: pharmacological options against oxidative stress and ferroptosis Cell Death & Disease NAC is a great supplement. It's awesome stuff to support healthy lungs. NAC is a known mucolytic. That is a fancy term meaning breaking up mucus. Now, research does show that NAC Amazon.com: Powerful Lung Detox & Cleanse Mullein, Chlorophyll, Zinc Respiratory Support with Glutathione for Smokers & Vapors Easy Breathing by NDCO : Health & Household