Supplements
/
Amino Acids
/
Acetyl-L-Carnitine
Excellent 4.6 out of 5
Amino Acids

Acetyl-L-Carnitine

Acetyl-L-Carnitine is a highly bioavailable form of carnitine that supports cellular energy production and brain function. It may boost mental clarity, mood, and focus, and can help with age-related cognitive decline, fatigue, and nerve health.

Learn more about Acetyl-L-Carnitine
Cancel anytime
HSA/FSA eligible
Results in a week
Physician reviewed

Every result is checked

·
CLIA-certified labs

Federal standard for testing

·
HIPAA compliant

Your data is 100% secure

Key Facts

  • Acetyl-L-carnitine is a compound that helps transport fatty acids into cells for energy production, with enhanced ability to cross the blood-brain barrier compared to standard L-carnitine
  • Supports nerve health in the limbs and cognitive function by promoting acetylcholine production, a key neurotransmitter for brain signaling
  • May help manage discomfort from nerve changes related to high blood sugar or chemotherapy side effects
  • Associated with mood support and stress resilience in aging populations, possibly through modulation of cortisol pathways

Ingredients

Acetyl-L-carnitine (as Acetyl-L-carnitine Chloride) 500 mg per capsule.

Why We Chose This

Acetyl-L-carnitine addresses a real gap: supporting both brain and nerve function through a single, well-researched mechanism. Unlike standard L-carnitine, this form crosses into the central nervous system more efficiently, making it particularly relevant for cognitive health and managing nerve-related discomfort. The 500 mg dose reflects clinically studied amounts shown to support acetylcholine production and help regulate stress hormones during periods of chronic tension. It's a clean, straightforward formulation for anyone interested in maintaining nerve resilience and mental clarity as they age.

Other Amino Acids

See more supplements

Frequently Asked Questions About Acetyl-L-Carnitine

What is the supporting research for the benefits of acetyl-L-carnitine?
How do I take acetyl-L-carnitine?

Take 1 capsule two to three times daily, or follow your healthcare practitioner's guidance for your specific needs.

Acetyl-L-carnitine absorbs best when taken consistently throughout the day rather than in one large dose.

Can I take acetyl-L-carnitine with other supplements or medications?

Acetyl-L-carnitine has no known adverse interactions at publication, though it may interact with blood thinners like warfarin and certain serotonin-affecting medications. Always consult your healthcare practitioner before combining it with other supplements or medications.

Who might benefit from taking acetyl-L-carnitine?

Acetyl-L-carnitine benefits older adults seeking cognitive support, those managing nerve-related discomfort from chemotherapy or blood sugar changes, and individuals interested in brain health and mood stability.

It's also worth considering if you're concerned about age-related cognitive decline or looking to support nerve function in your limbs.

How long does it typically take to notice effects of acetyl-L-carnitine?

Most people notice improved exercise recovery and reduced muscle soreness within 4–6 weeks of consistent use. Measurable fat loss typically requires 8–12 weeks combined with diet and resistance training.

Acetyl-L-carnitine crosses the blood-brain barrier more readily than standard L-carnitine, so cognitive and nerve-support benefits may follow a different timeline than weight-related outcomes.

How it works

1

Test your whole body

Get a comprehensive blood draw at one of our 3,000+ partner labs or from the comfort of your own home.

2

An Actionable Plan

Easy to understand results & a clear action plan with tailored recommendations on diet, lifestyle changes, supplements and pharmaceuticals.

3

A Connected Ecosystem

You can book additional diagnostics, buy curated supplements for 20% off & pharmaceuticals within your Superpower dashboard.

Superpower tests more than 
100+ biomarkers & common symptoms

Developed by world-class medical professionals

Supported by the world’s top longevity clinicians and MDs.

Dr Anant Vinjamoori

Superpower Chief Longevity Officer, Harvard MD & MBA

A smiling woman wearing a white coat and stethoscope poses for a portrait.

Dr Leigh Erin Connealy

Clinician & Founder of The Centre for New Medicine

Man in a black medical scrub top smiling at the camera.

Dr Abe Malkin

Founder & Medical Director of Concierge MD

Dr Robert Lufkin

UCLA Medical Professor, NYT Bestselling Author

membership

$17

/month
Billed annually at $199
A smartphone displays health app results, showing biomarker summary, superpower score, and biological age details.
A smartphone displays health app results, showing biomarker summary, superpower score, and biological age details.
What could cost you $15,000 is $199

Superpower
Membership

Your membership includes one comprehensive blood draw each year, covering 100+ biomarkers in a single collection
One appointment, one draw for your annual panel.
100+ labs tested per year
A personalized plan that evolves with you
Get your biological age and track your health over a lifetime
$
17
/month
billed annually
Pricing for members in NY & NJ is $499
Flexible payment options
Four credit card logos: HSA/FSA Eligible, American Express, Visa, and Mastercard.
Start testing
Cancel anytime
HSA/FSA eligible
Results in a week

Finally, healthcare that looks at the whole you