Doctor's Best NAC Detox Regulators

N-Acetylcysteine (NAC) 600 mg, Selenium (from SelenoExcell® High Selenium Yeast) 50 mcg, Molybdenum (from molybdenum glycinate chelate) 50 mcg, Hypromellose (vegetarian capsule), Citric acid, Natural vanilla flavor.

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched 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 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

Take 1 capsule twice daily with food, or as recommended by a nutritionally informed physician. Store in a cool, dry place. Warning: Consult your physician before using NAC if you are pregnant, lactating, have a history of stomach ulcers, heart or kidney problems.

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

The Active Ingredient Is: N-Acetylcysteine (NAC)

N-Acetylcysteine is a stable form of the amino acid cysteine and functions as a precursor to the body’s master antioxidant, glutathione.

This form is commonly used to support cellular defence and detoxification processes, with NAC acting to promote glutathione production in the body.

What Does N-Acetylcysteine Do?

NAC participates in supporting antioxidant defence and detoxification pathways, contributing to normal cellular protection and redox balance. It plays a role in glutathione synthesis, aligning with EFSA and NHS guidance on antioxidant nutrients.

Studies indicate NAC can help maintain glutathione levels within the normal range, contributing to overall cellular resilience. This interpretation is aligned with expert reviews from researchers at recognised universities.

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

Doctor’s Best is our selected partner for NAC Detox Regulators because this brand carries a long rooted heritage of science‑driven nutrition and ingredient openness that resonates with Welzo’s standards. With more than 25 years in the market, Doctor’s Best is widely recognised for its commitment to evidence‑based formulations and transparent communications around ingredients, which helps customers feel confident in what they’re taking. The brand’s use of trusted ingredient sources, such as SelenoExcell© for selenium, reflects a disciplined approach to quality that lines up with our expectations for purity and consistency. This emphasis on rigorous sourcing sits at the heart of Doctor’s Best manufacturing philosophy, an ethos we value when selecting a partner. Our team evaluated this brand against our quality benchmarks and found a solid match to our criteria for credibility and safety. This alignment is reinforced by our team of medical experts and our quality assurance criteria as the basis for endorsement. our team of medical experts and our quality assurance criteria.