NAC Supplements - Promote Liver and Kidney Detoxification & Repair, Liver and Kidney & Respiratory Health, Enhances Immune Function: Respiratory health, detoxification Ingredients: Selenium, N-Acetyl Cysteine Directions: Take two (2) capsules once daily Shipping: Ships within 48 hours on weekdays Shelf life: 2 years Free Radical Protection: Take 1 NAC vegetable capsule with selenium daily for free radical protection and to maintain cellular health. Important Notes About This Product: Black spots may appear in the NAC due to normal oxidation reactions, but the 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, Gluten-Free, Kosher, Dairy-Free, Egg-Free, Nut-Free, Soy-Free.