Doctor's Best Acetyl-L-Carnitine (ALCAR) 500mg delivers a highly bioavailable form of L-Carnitine that efficiently crosses the blood-brain barrier. Unlike standard L-Carnitine, which primarily supports fat metabolism in muscles, ALCAR has significant nootropic and neuroprotective properties — it supports the production of acetylcholine, the key neurotransmitter for memory and learning, and provides antioxidant protection in brain tissue.*

• Crosses the blood-brain barrier for direct cognitive support*
• Supports production of acetylcholine for memory and focus*
• Supports mitochondrial energy production in brain and muscles*
• Provides neuroprotective antioxidant activity*
• Non-GMO | Gluten Free | 60 veggie capsules

Suggested Use: As a dietary supplement, take 1–2 capsules daily, preferably with a meal.

Frequently Asked Questions

What makes Acetyl-L-Carnitine different from regular L-Carnitine?

The acetyl group attached to L-Carnitine allows ALCAR to cross the blood-brain barrier — something standard L-Carnitine cannot do. This gives ALCAR unique cognitive and neuroprotective benefits on top of its energy metabolism role. Once in the brain, the acetyl group also serves as a substrate for acetylcholine production, supporting memory, concentration, and mental clarity.*

Can ALCAR support brain health as we age?

Yes. Research suggests ALCAR may help support cognitive function, memory, and mental energy in aging adults. It may also help protect neurons from oxidative damage and support mitochondrial efficiency — two key factors in maintaining healthy brain function as we get older. Many people take ALCAR as part of a broader nootropic and longevity stack.*

Can I take ALCAR with other brain supplements?

Yes. ALCAR pairs well with Alpha-Lipoic Acid (ALA), which works synergistically with carnitine in mitochondrial energy metabolism. It also complements Phosphatidylserine, CoQ10, and other nootropic supplements. Doctor's Best offers several complementary cognitive support products that can be taken alongside ALCAR.*

Is Doctor's Best Acetyl-L-Carnitine suitable for vegetarians?

Yes. Doctor's Best ALCAR is encapsulated in vegetarian capsules and is free from animal-derived gelatin. It is also non-GMO and gluten free, making it suitable for a wide range of dietary preferences.