< ul >< li > Supports bronchial and respiratory health . Its sulfur content allows NAC to break down disulfide bonds in mucus , making it thinner and easier to expel .< li > Promotes liver health and function by protecting the liver and kidneys from toxins and aids in the detoxification of heavy metals in these organs .< li > Immune system support : Enhances immune cell production and function . NAC can penetrate the bacterial membrane , increase oxidative stress , and halt protein synthesis .< li > Supports a healthy inflammatory response in the lungs by reducing the production of cytokines and other pro - inflammatory markers .