NOW Foods NAC, Pure Powder enhances your immune defences by backing glutathione production, using the key ingredient NAC, and benefits from NOW Foods' trusted GMP-certified quality. This clean powder is made for everyday use, offering a simple way to support detoxification and immune function with a pure, allergen-free formula. The brand's long history and commitment to strict quality control set it apart in the wellness world.

Available Sizes & Variants:

113 grams NAC powder - Pure, single ingredient formula for easy dosing.

Benefits & Features:

• Pure, single ingredient for clean intake.
• Supports antioxidant defences by boosting glutathione production, helping protect cells from oxidative stress and supporting detoxification in the liver.
• Manufactured in a GMP-certified facility in the United States to strict quality standards.
• Free from major allergens and additives, making it easier to fit into diverse diets.
• Regular use, as part of a balanced routine, may support better resilience during challenging days thanks to NAC’s role in supporting glutathione, the body's main antioxidant.

NOW Foods NAC Pure Powder is a genuinely straightforward, single-ingredient option that puts quality first. NOW Foods, established in 1968, is renowned for rigorous testing and clear sourcing, and NAC is produced in a GMP-certified facility in the United States with allergen management in mind. As a direct precursor to glutathione, n acetylcysteine supports immune system booster effects, and when paired with a vitamin d supplement, contributes to overall wellness, with no fillers, just pure resilience.

N-Acetyl Cysteine (NAC)

• GTIN: 733739001863
• 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 1/4 level teaspoon (600 mg) 1 to 3 times daily. Due to the strong taste of this powder, it is highly recommended to mix it with acidic type juice, such as orange or cranberry. Store in a cool, dry, dark place and avoid excessive heat. Keep out of reach of children. For adults only. Recommended daily dose should not be exceeded. Food supplements should not be used as a substitute for a balanced diet. A varied diet and a healthy lifestyle should be maintained to help maintain normal health. If you are pregnant, nursing, taking any medications, or have any medical condition, consult your doctor before use.

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 Key Ingredient Here Is: N-Acetyl Cysteine (NAC), a handy amino acid derivative

N-Acetyl Cysteine, a handy amino acid derivative, acts as a direct precursor to the body's main antioxidant pool, and supports cellular defences and overall health.

This form is a clean, stabilised amino acid version made for consistency and quality, with production in a GMP-certified facility to guarantee purity and reliability.

What Exactly Does N-Acetyl Cysteine Do?

NAC helps manage the body’s antioxidant status by supporting the production of glutathione, a key cellular antioxidant, and it’s involved in supporting detox processes and immune balance; Dr. Aldini of the University of Bologna found that NAC is a direct precursor to glutathione, contributing to cellular protection (which is important in daily life).

These functions line up with general dietary guidance on keeping normal antioxidant function and cellular health, as noted in scientific discussions of NAC’s mechanism. [which is fairly common in nutrition conversations]

*This product is not intended to diagnose, treat, cure, or prevent any disease.

NOW Foods NAC, Pure Powder is the result of a brand with a long history in the supplement world. NOW Foods, founded in 1968 as a family‑run company, is known for quality assurance, openness and a solid reputation for third‑party testing and GMP compliance. This heritage keeps us confident in a partner that consistently prioritises safety, reliability and accessibility for customers.

The product itself is made in a GMP‑certified facility in the United States, reflecting strict quality checks and allergen control. NOW Foods is well regarded for its transparent sourcing and commitment to purity, making this NAC powder a simple, well‑run option within Welzo’s range. For our team’s evaluation, this brand’s track record and manufacturing standards match our expectations for reliability and consistency, especially for a single‑ingredient product like NAC that acts as a precursor to glutathione.

We chose NOW Foods NAC, Pure Powder because of the brand’s established credibility and focused quality approach. This brand meets our criteria for trusted manufacturing along with robust testing and accessibility. This makes NOW Foods a strong fit for this supplement and for Welzo's broader quality standards, backed by our medical team and our ingredient quality and purity criteria.