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60 Veggie Capsules DRB-00105

Brain power.

Boost your performance - behind the desk and on the field. Naturally produced by the body, Acetyl L-Carnitine is an amino acid that helps to supply the brain with energy.* By increasing mitochondrial efficiency, Acetyl L-Carnitine acts as both a brain function and overall energy enhancer. Taken daily, this supplement can support the improvement of memory, learning and you can stay quick, sharp and ready for whatever comes next.*

  • Non-GMO
  • Gluten Free
  • Vegan
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A staple for my nootropic regimen. Really makes a difference in mental endurance feats. Adds that extra push when I'm engaged in intense activities. Works well in any nootropic stack with fish oil or Ubiquinol. 2 a day works well, I've gone up to 4 and well awesome. Feels like an extra gear in short and long term memory.

Reviewed in the United States on April 8,

As a office worker. I've been using this for the past 3 months, and so far, no regrets, one of the best things I could have gotten into. Main purpose of using it, is because of energy, I am constantly lacking self energy for activities. Now my performance has improved and I have enough drive to finish my day with gym workout without any issue and only using two pills a day. Ps. I'm a healthy person on its 30s.

Reviewed in the United States on January 27, 2021.

This brand is great .. I love it!! This is one of my preferred supplements .. Been using for years .. I'm satisfied .. Will continue to buy!!

Reviewed in the United States on November 10,
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Only the best.

We only use the best ingredients in all our products, and our Acetyl-L-Carnitine is no exception. This supplement contains Biosint Carnitine™ L-carnitine fumarate, which is derived from high grade L-carnitine manufactured by a patented, FDA-approved process. This guarantees the highest levels of efficacy, safety and quality. Even more impressive, this product is backed by 40 years of research by the Sigma-Tau Group, who studied the role played by carnitine in cellular metabolism.

Suggested Use 

Each veggie capsule contains 500 mg of acetyl l-carnitine. Take two capsules daily with food.


Doctor's Best Acetyl-L-Carnitine is pure Acetyl-L-Carnitine. This is different from fumarate, tartrate and fumarate.

Doctor's Best offers 2 different carnitine products: L-Carnitine Fumarate, and Acetyl-L-Carnitine. Doctor's Best L-Carnitine Fumarate is in the form of L-Carnitine fumarate. Both products contain BIOSINT L-Carnitine, which is manufactured in Italy by the reputable company Sigma-Tau. Sigma-tau Health Science, Inc has the only FDA-approved pharmaceutical batch process system for consistent L-Carnitine quality, and has been manufacturing L-Carnitine derivatives for over 30 years.

Doctor's Best products are quality tested and manufactured in the United States using highly qualified cGMP manufacturers and raw material ingredients. Doctor's Best sources raw materials from around the world and ingredients are subject to the intense testing and verification regardless of geography of origin.

Doctor's Best products can be found at vitamin specialty, chain and independent natural product stores across the country, as well as online. We recommend that you use our online Where to Buy store finder to find a store near you or one of our online partners who can ship to you directly.