N-N-Acetyl-L-Cysteine is an easily absorbed antioxidant precursor that helps support immune resilience and healthy breathing for everyday wellbeing.

Available Sizes & Variants:

60 capsules N-Acetyl-L-Cysteine supplement - convenient daily dose for ongoing support.

Benefits & Features:

• Supports immune resilience with a glutathione precursor.
• Promotes healthy respiratory function by helping the antioxidant system replenish glutathione, which may help reduce oxidative stress during daily exposure and supports easier breathing during seasonal discomfort.
• Vegetarian capsule delivers NAC without blends or other active ingredients.
• Formulation aligns with evidence supporting NAC's role in glutathione replenishment and antioxidant protection.
• Life Extension uses GMP compliant manufacturing to ensure quality and consistency.

Life Extension is a US brand known for high manufacturing standards, including vegetarian capsules and non GMO formulations. This N-Acetyl-L-Cysteine acts as a readily absorbed precursor to glutathione, the body's main antioxidant, supporting immune health, respiratory comfort and liver detoxification. The 60 capsule pack makes daily dosing straightforward for ongoing protection, and the brand's emphasis on quality aligns with GMP compliant practices.

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.

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

The Active Ingredient Is: N-Acetyl-L-Cysteine

N-Acetyl-L-Cysteine, commonly known as NAC, is a highly absorbable form of the amino acid cysteine and acts as a precursor to glutathione, a key antioxidant in the body.

This form provides a convenient delivery of NAC in a vegetarian capsule, supporting everyday wellbeing and antioxidant-related functions.

What Does N-Acetyl-L-Cysteine Do?

NAC contributes to antioxidant production through supporting glutathione synthesis, and it is involved in supporting immune resilience and healthy respiratory function.

Its role in supporting liver detoxification and general antioxidant activity aligns with standard physiological functions recognised in nutritional science.

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

Life Extension is our chosen manufacturer for N-Acetyl-L-Cysteine due to a long-standing reputation for high manufacturing standards and GMP compliance, rooted in a heritage of quality in the US supplement space. The brand’s commitment to consistent purity and manufacturing excellence underpins our confidence in this NAC product as a reliable daily option for our customers. This brand was evaluated by our medical team for alignment with our rigorous testing protocols, reflecting rigorous internal evaluation and a science-led approach to quality. Our vetting criteria emphasise credible manufacturing practices, traceable ingredients, and transparent quality controls, all of which Life Extension demonstrates through its longstanding market presence and adherence to industry standards.

Choosing Life Extension for this supplement aligns with our partnerships strategy, ensuring product integrity for UK shoppers while leveraging the brand’s established expertise in antioxidant support and liver and immune health domains. This combination makes Life Extension NAC a natural fit for Welzo’s commitment to trusted, value-driven supplementation.