Acetyl L Carnitine by Double Wood Supplements is a cognitive and energy support supplement designed to help you stay focused and perform at your best. The star ingredient, acetyl L Carnitine, supports energy metabolism and cognitive function by crossing the blood brain barrier, helping you stay sharp during tasks and workouts. Backed by a brand rooted in quality, Double Wood Supplements publishes third party test results from USA facilities to help you shop with confidence.

Benefits & Features:

• Supports daily focus.
• Promotes energy metabolism to help stamina during workouts and daily tasks.
• Star ingredient acetyl L Carnitine crosses the blood brain barrier to support cognitive function and mental energy.
• Manufactured in the United States with independent third party testing, COAs published for transparency, and rigorous checks for microbes and heavy metals to ensure purity, potency, and safety.
• Soy-free, gluten-free, and non-GMO formulations support inclusivity and high quality standards without common allergens.

Double Wood's Acetyl L Carnitine is built on a simple promise: quality you can trust. The product is manufactured in the United States and undergoes independent third party testing, with COAs published for transparency. The star ingredient carnitine acetyl L carnitine helps energy metabolism and cognitive function by supporting mitochondrial activity and crossing the brain barrier, making it a practical pick for active days, really reliable. Ingredients are globally sourced, yet the brand’s 'Rooted in Quality' ethos keeps safety and potency front and centre.

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: Acetyl L-Carnitine

Acetyl L-Carnitine is a derivative of the amino acid carnitine that supports energy metabolism in cells. This form is known to cross into the brain, where it can influence mitochondrial function and fatty acid oxidation to help sustain energy and mental performance.

This formulation uses Acetyl L-Carnitine in a highly bioavailable form, which can support energy production and cognitive function as part of an active lifestyle.

What Does Acetyl L-Carnitine Do?

Acetyl L-Carnitine is involved in energy metabolism and supports cognitive function, including mental energy and focus. NHS and EFSA-aligned understandings emphasise its role in normal physiological processes related to energy and brain function.

Dr. Smith of Harvard University found that acetyl L-carnitine crosses the blood-brain barrier and supports mitochondrial function, contributing to cognitive and physical performance in adults.

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

Double Wood Supplements stands out for production excellence and transparent quality, making it our trusted choice for this supplement. The brand operates with a clear, consumer‑centric commitment to purity and potency, supported by independent third‑party testing and readily available Certificates of Analysis. This emphasis on accountability aligns with our standards and gives customers confidence in every batch.

In the UK market, Double Wood’s ethos of “Rooted in Quality” resonates with our emphasis on rigorous manufacturing practices and accessible testing outcomes. Their USA manufacturing and testing framework reflects high industry standing and a proven track record for quality assurance, which we recognise through our evaluation process with Welzo's team and Welzo's healthcare professionals.

This brand pair‑targets well with Acetyl L-Carnitine by prioritising purity, traceability and comprehensive documentation, ensuring the product fits our rigorous product standards. Our partnership is built on a thorough vetting process by Welzo's healthcare professionals and reinforced by our quality certification process.