NAC 900 mg 120 capsSupports respiratory function, glutathione production and detoxification* N Acetyl l Cysteine (NAC) is a derivative of the dietary amino acid l cysteine. NAC has a high affinity for lung tissue, which it supports through mucolytic and antioxidant action. NAC supports tissue levels of glutathione, a key component of the antioxidant defense system.* Supports cellular antioxidant defense system* Promotes healthy lung tissue* Made with hypoallergenic