Established in 1971. Certified Gluten Free. High efficiency. Supports Liver Health. Supports lung health. Supports lung health. Nutritional supplement. Certified B Corporation. Kosher parve. Halal. - Authenticity. Purity. Freshness. Consistency. Accuracy. N-acetylcysteine ​​(NAC) acts as an antioxidant removing harmful free radicals. Besides NAC is a cysteine ​​precursor to the antioxidant glutathione. As part of the cellular antioxidant defense system Glutathione plays a key role in cellular detoxification neutralizing harmful free radicals.