Pure Encapsulations, NAC 900 mg, 240 CapsulesProduct Overview : Pure Encapsulations, NAC 900 mg, 240 Capsules Description: Supports Respiratory Function, Glutathione Production and Detoxification Non GMO & Hypoallergenic Dietary Supplement Certified Gluten Free by the Gluten Free Certification Organization Promotes healthy lung tissue. Supports respiratory function. Enhances cellular antioxidant defense system specifically supporting lung function. Suggested Use: As a dietary supplement, take 1