Reducing oxidative stress is vital in respiration-related organs taking part in oxygen transport. N-acetylcysteine (NAC) is used to promote the production of the antioxidant glutathione and aids in sustaining bronchopulmonary tissues and overall health. BronchEze further offers classic antioxidant fortification of vitamins C and E, carotene, riboflavin and selenium, which may be lacking in Western diets. These nutrients also assist in continuing optimal immune system potency. Horehound and licorice extracts, and thyme oil, are conventional botanicals and elixirs for lung sustainment.