NOW Foods NAC is a NAC dietary supplement that strengthens the body's antioxidant defence by boosting glutathione production, helping you stay resilient against daily stress. The star ingredient NAC acts as a powerful precursor to glutathione, boosting antioxidant capacity. NOW Foods has built a long standing reputation for accessible, quality supplements. This nac dietary supplement keeps things simple.

Available Sizes & Variants:

120 tablets NAC supplement – convenient daily dose for steady support.

Benefits & Features:

• Boosts antioxidant defence effectively.
• Crosses cell membranes to boost intracellular glutathione, delivering antioxidant power where it's most needed.
• Regular use helps maintain steady antioxidant support, with a convenient once-daily option that fits into busy mornings and won’t disrupt your routine, even when life gets hectic.
• NAC acts as a precursor to glutathione, supporting immune function and helping the body cope with oxidative stress during seasonal changes.
• FDA approved use for acetaminophen overdose demonstrates NAC's protective potential when administered promptly, boosting glutathione to support liver and kidney protection in critical situations effectively today.

N-acetylcysteine (NAC) is a stable supplemental form of the amino acid L-cysteine, designed to cross cell membranes and boost intracellular antioxidant capacity. This NOW Foods formulation delivers 1000 mg per tablet, a practical option aligned with the therapeutic range studied in many clinical settings. The ingredient helps replenish glutathione, which supports natural immune function and detoxification processes. By specialising in NAC, NOW Foods offers a straightforward, reliable addition to a balanced wellness routine, sitting comfortably within the wider nature made vitamins category.

N-Acetyl Cysteine (NAC)

• GTIN: 733739001856
• Manufacturer: NOW Foods
• Categories: Best SellersNOW FoodsSubscribe & Save Products
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 1 tablet 1 to 3 times daily, preferably with food. Store in a cool, dry place after opening. For adults only. Consult a physician if pregnant/nursing, taking medication (especially nitroglycerin), or have a medical condition. Keep out of reach of children.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: N-acetylcysteine (NAC)

N-acetylcysteine, or NAC, is a reliable supplemental form of the conditionally essential amino acid L-cysteine. It serves as the sole active ingredient in this product and is used as a handy source of cysteine for the body.

This form is bioavailable and acts as a precursor to glutathione, supporting the body's antioxidant capacity and cellular defence mechanisms.

What Does N-acetylcysteine Do?

NAC contributes to the production of glutathione, a major intracellular antioxidant that helps maintain cellular redox balance. It also supports immune function and may aid in detoxification processes, with mucolytic properties noted in some respiratory contexts.

EFSA-informed understanding describes amino acids like NAC as supporting normal antioxidant function and physiological defence, aligned with general health maintenance.

This brand vs alternatives centers on NOW Foods as a supplier capable of delivering a high-purity NAC product with clear dosing. The NOW Foods NAC 1000mg tablets present NAC as the sole active ingredient, which aligns with our preference for straightforward, well characterised formulations that support reliable product development.

This brand offers a formulation that sits within clinically studied ranges, with 600mg to 1200mg daily commonly employed in research and NOW Foods provides a convenient 1000mg option that can be taken once daily or split to match protocols. This focus on a simple, potent active ingredient supports predictable manufacturing outcomes and, in our evaluation, pairs well with Welzo’s emphasis on accuracy and quality. Our team of medical experts reviews this alignment with our rigorous testing protocols to ensure consistent quality and safety. our team of medical experts and our rigorous testing protocols.

This brand was selected for its product focus and manufacturing consistency, reflecting Welzo’s commitment to trusted sourcing and evidence-based supplementation. The combination of a well-defined active ingredient, dosing within recognised ranges, and our expert vetting supports a strong, product-specific fit for NAC use while maintaining high standards of quality and safety.