Now Foods Nac free radical protection

Maintains Cellular Health* With Selenium N-acetyl cysteine (NAC) is a stable form of the non-essential amino acid cysteine. It is a sulfur-containing amino acid that acts as a stabilizer for the formation of protein structures, and is also necessary for the formation of glutathione.* Selenium is an essential trace mineral that facilitates the production of several important enzymes.*FREE RADICAL PROTECTION: Take 1 NAC veggie capsule with selenium and molybdenum twice daily for free radical protection and to maintain cellular health.IMPORTANT NOTE ABOUT THIS PRODUCT: Black spots may appear in NAC because of a normal oxidative reaction, but product is safe to consume. These spots are not mold or any other micro-contamination. Micro-testing has been performed to assess product safety.CERTIFICATIONS/CLASSIFICATIONS: Non-GMO, vegan/vegetarian, made without gluten, kosher, dairy free, egg free, nut free, soy free, UL certifiedGMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).Packaged in the USA by a family owned and operated company since 1968