Doctor's Best NAC Detox Regulators provide 600mg of N-Acetyl Cysteine (NAC) per capsule, a powerful antioxidant known for supporting liver health, detoxification, and immune function. NAC is a precursor to glutathione, one of the body's most important antioxidants that helps neutralize free radicals, support cellular health, and promote detoxification processes. This supplement also supports respiratory health by reducing oxidative stress in the lungs. The formula is ideal for individuals looking to support detoxification, protect liver function, and boost antioxidant levels. The vegetarian capsules are non-GMO, gluten-free, and free from artificial additives.