NACN acetylcysteine (NAC) is an amino acid that offers potent antioxidant activity by optimizing the production and replenishment of glutathione. NAC also acts independently to benefit bodily function from the lungs to the liver, as well as optimizing the bodys resistance against oxidative stress and damage. Benefits of NAC: Helps break up mucus, making it easier to clear from congested lungs and sinuses* Enhances immune function by supporting the