N-Acetyl-Cysteine (NAC) is a stable and bioactive form of L-Cysteine, an amino acid that plays a key role in phase II detoxification and homocysteine metabolism. NAC is efficiently transported into the cell, where it is readily converted to cysteine for glutathione synthesis and regeneration. Because NAC can penetrate the blood-brain-barrier, it is especially important for maintaining healthy brain and nervous system tissues. NAC also helps to support respiratory health by promoting normal mucus viscosity. Supports Glutathione Production Healthy Respiratory Function Dietary Considerations Wheat Free Dairy/ Milk Free Gluten Free Soy Free Egg Free Shellfish Free Fish Free Tree Nut Free Serving Size: 1 Tablet Servings Per Container: 120 Amount Per Serving N-Acetyl-Cysteine (NAC) 1 g Other Ingredients: Microcrystalline Cellulose, Hydroxypropyl Cellulose, Stearic Acid (vegetable source), Vegetarian Coating, Silicon Dioxide Take 1 tablet 1 to 3 times daily, or as directed by your healthcare practitioner. Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens. Store in a cool, dry place after opening. Please Recycle. NAC may interact with nitroglycerin. Consult your healthcare practitioner before taking this product if you are taking nitroglycerin. Natural color variation may occur in this product.