Skip to main content
Browse All Products

L-Carnitine Fumarate

180 Veggie Caps DRB-00154

Burn bright.

Trying to hit your fitness goals? Look no further than our L-Carnitine Fumarate, a powerful combination that helps the body burn fat for energy and maintain a healthy heart and cardiovascular system. * L-Carnitine is a nutrient that promotes energy production and helps the body efficiently metabolize fat.* Fumarate, or fumaric acid, is a compound that plays a key role in generating energy. When combined with L-Carnitine, the benefit is dual support that energizes the heart and muscles.* For anyone who regularly trains, this combo provides endurance during workouts and helps you recover from high intensity exercise.* 

  • Non-GMO
  • Gluten Free
  • Soy Free
  • Vegan
  • Previous Slide(s)
  • Next Slide(s)

Your new best friend Undoubtedly an essential for working out or staying active. It aids in deep tissue regeneration and is preventative against muscle soreness, cricks, kinks and creaks.

Reviewed in the United States on July 1,

Good for heart health and much more. My husband and I have been using this for about 12 years, along with many other supplements. We can't scientifically state this is helping us, but he's closing in on 80, and I'll be 76 in a couple of months, and we feel like teenagers. Maybe it's the L-Carnitine Fumarate, and maybe it's not, but we'll take it as long as we can.

Reviewed in the United States on July 5,

Five Stars Great item, love it. Although I take these with other supplements they seem to help with fat loss.

Reviewed in the United States on July 21,
  • Previous Slide(s)
  • Next Slide(s)

Only the best.

We only use the best ingredients in all our products, and our L-Carnitine Fumarate is no exception.This supplement contains Biosint Carnitine™ L-carnitine fumarate, which is derived from pharmaceutical 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 855 mg of L-Carnitine Fumarate. Take one capsule daily, with or without food. 


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 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.

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.