L-Carnitine dietary supplement offers steady energy production and crisp brain support through highly absorbable Acetyl L Carnitine, backed by Thorne's pharmaceutical‑grade standards. This form is known for brain and nerve support, delivering energy where you need it most. Thorne's strict manufacturing and clean label standards ensure you get a high quality, trustworthy dietary supplement.

Available Sizes & Variants:

60 capsules L-Carnitine capsules - convenient monthly supply for daily use

Benefits & Features:

• Supports energy production for daily activities, helping you power through busy days.
• May help maintain cognitive function and mental focus during demanding tasks.
• Supports nerve health and comfort, particularly for days that require stamina.
• Includes acetyl l carnitine to maximise absorption and mitochondrial energy support.
• Gluten free and dairy free status is maintained.

Thorne manufactures Acetyl L Carnitine in the United States under strict quality standards, with batch-specific testing and allergen-free certification. Raw materials are clinical grade and sourced with transparency, supporting traceability from step to bottle. The brand's reputation relies on pharmaceutical grade quality and clear labelling, giving you confidence in a dietary supplement designed to support energy, brain function and nerve comfort. Many users pair it with protein shakes for a convenient routine.

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.

A serving is 2 pumps.

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

The Active Ingredient Is: Acetyl-L-Carnitine

Acetyl-L-Carnitine is basically an acetylated form of L-Carnitine that supports cellular energy production and nerve function. This form is known for high bioavailability and is often used to support brain and peripheral nervous system health.

This formulation uses clinically developed Acetyl-L-Carnitine carefully sourced for purity and delivered in a vegetarian capsule with minimal excipients, reflecting a focus on clean-label standards and regulatory compliance.

What Does Acetyl-L-Carnitine Do?

Acetyl-L-Carnitine takes part in mitochondrial energy metabolism by moving fatty acids into mitochondria, supporting energy production in muscles and neurons. It also crosses the blood-brain barrier to contribute to brain energy processes and nerve function, which aligns with EFSA and NHS understandings of normal physiological roles.

In addition to its energy-related actions, the nutrient helps support nerve comfort and the maintenance of cellular function in neural tissues.

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

Thorne is our chosen manufacturer for this L-Carnitine supplement due to a longstanding reputation for pharmaceutical‑grade quality and transparent, science‑led manufacturing. This brand was founded on rigorous quality standards and a clear commitment to purity, which is reflected in their U.S. production, cGMP compliance, and extensive third‑party testing for purity and potency. Thorne’s clean‑label approach, including gluten‑free, soy‑free and dairy‑free formulations with minimal excipients, demonstrates a disciplined manufacturing philosophy that aligns with Welzo’s emphasis on safety and reliability. Their high‑quality sourcing and batch‑specific testing further support supply‑chain transparency and regulatory compliance, which we value highly in a partner. For our team evaluating candidates, Thorne’s established reputation for lab testing standards and accurate product labeling stood out, reinforcing why they meet our quality criteria. This brand’s UK market presence and commitment to safe, well‑characterised ingredients also underpin our confidence in their suitability for this supplement. our medical team and our quality assurance criteria have reviewed Thorne for compliance with our standards.

Product fit is strong here as well: Acetyl‑L‑Carnitine is delivered in a highly bioavailable form that supports cognitive health, nerve function and energy production, aligning with Thorne’s emphasis on clinically informed, well‑tolerated formulations.