Free form amino acid. NAC (N-Acetyl-Cysteine) is a precursor of glutathione in the body and a protected sulfur-containing amino acid. It is more stable than the sulfur-containing amino acid L-Cysteine. TwinLab NAC (N-Acetyl-Cysteine) capsules are easier to swallow and assimilate. They also contain no tablet binders, coatings or colorings. Free of the most common allergens such as corn, soy, yeast, rice, barley, wheat, lactose (milk sugar) and all milk, citrus, fish and egg products. No added sugars, salt, colorings or preservatives. This product is packaged in a glass bottle for maximum stability, quality and freshness. This product is manufactured at our own state-of-the-art facility.
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.