Benefits: Respiratory health, detoxification Ingredients: Selenium, N-acetylcysteine Directions: One capsule once daily Shipping: Ships within 48 hours on weekdays Shelf life: 2 years Fights free radicals: Take one to two selenium-containing NAC plant capsules daily to protect against free radicals and maintain cellular health. Important note about this product: Black specks may appear in NAC due to normal oxidation, but this product is safe to consume. These specks are not a sign of mold or 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, Tree-Free, Soy-Free.