Jarrow Formulas NAC supplement supports detoxification and provides antioxidants(1). This NAC amino acid supplement provides 600 mg of NAC per serving, an antioxidant amino acid and a precursor in the body to the endogenous antioxidant glutathione, which is important for detoxification.(1) This dietary supplement provides quick and sustained release, is non-GMO and is gluten-free. Adults, take one tablet one to two times a day, preferably on an empty stomach with fruit juice or as directed by your qualified healthcare professional. Jarrow Formulas' Superior Science. Smarter Formulas.(1)These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.