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Doctor's Best, Acetyl-L-Carnitine, 500 mg, 120 Veggie Caps


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Doctor's Best, Acetyl-L-Carnitine, 500 mg, 120 Veggie Caps

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Doctor's Best, Acetyl-L-Carnitine, 500 mg, 120 Veggie Caps

In Stock
  • Expiration Date: 09/2019
  • Shipping Weight:
    0.35 lbs
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  • Product Code: DRB-00152
  • UPC Code: 753950001527
  • Package Quantity: 120 Veggie Caps
  • Dimensions:
    4.4 x 2.5 x 2.5 in, 0.3 lbs
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Product Overview


  • Science-Based Nutrition
  • Dietary Supplement
  • Biosint Carnitines
  • Helps Promote Healthy Mood
  • Non-GMO and Gluten Free

Acetyl-L-Carnitine (ALC) is a nutrient that occurs naturally in the body and is fundamentally important for energy generation by the mitochondria "energy factories" in our cells. The acetyl part of the molecule can be used to make acetylcholine, a key chemical messenger in the brain and all the other organs. ALC also is involved in regulating gene activity (epigenetics) and is a versatile protective nutrients for the nervous system.

  • Essential for generating energy from foods
  • Helps preserve nerve structure and function
  • Helps promote healthy mood.

Suggested Use

Take 2 capsules per day with meals. For additional benefit take 4 capsules per day, or more, as recommended by a nutritionally-informed physician.

Other Ingredients

Modified cellulose (vegetarian capsule), magnesium silicate, microcrystalline cellulose, silicon dioxide, stearic acid.

Non-GMO and gluten free


Store in a cool dry place.

Supplement Facts
Serving Size: 2 capsules
Servings Per Container: 60 servings
  Amount Per Serving % Daily Value
Acetyl-L-Carnitine (from Biosint Acetyl-L-Carnitine HCI) 1000 mg
† Daily Value not established.
iHerb Customer Reviews

High quality, efficient, but watch your stomach.

Posted by Antonych on Dec 15, 2017 | Verified Purchase

Hi! I do water sports professionally and bought it to increase the time of my training session. I've chosen it, because it has a "BIOSINT" label on the bottle, meaning that high quality L-Carnitin from Sigma-Tau was used. The second world producer is a Swiss brand Lonza with "Carnipure" L-Carnitine. Was taking it right before going out on the water for max. effect. Sometimes, instead of taking a capsule, I was opening it and dissolving the powder in the water for faster absorption (my stomach also does not like pills too much and sometimes hurts). I also didn't mix it with any meals to eliminate additional energy sources and make the fat-burning function of L-Carnitine more efficient. Results. I've noticed, that I have more energy and get hungry slower, if compared to a normal session. Had a feeling of better concentration as well. However, after taking it several days in a row, I've noticed increasing acidity in the stomach, resulting in a feeling of pyrosis. No wonder, the powder itself is extremely sour. But it is also a result of using a harness (a special belt for kitesurfing) pulling me up and compressing my stomach. Haven't noticed any "pyrosis" or heartburn feeling while practicing non-water sport activities though. Nevertheless, pay attention, if you tend to have a high stomach acidity. Check out my personal page for more info on using iherb products to get better sport results. Don't forget to hit the "like" button if it was useful for you. Thanks for reading!

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The best

Posted by iHerb Customer on Dec 12, 2017 | Verified Purchase

Excellent product, good quality/price and dosage per tablet. Absolutely recommended

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Helped weight loss but not anxiety

Posted by iHerb Customer on Dec 10, 2017 | Verified Purchase

Still felt very stressed, but I suddenly lost weight taking this product

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This a great product.

Posted by iHerb Customer on Dec 05, 2017 | Verified Purchase

This, along with other supplements, has improved my sensory poly neuropathy by about 80%

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Good product.

Posted by iHerb Customer on Dec 03, 2017 | Verified Purchase

I recommend this with d-ribose, coq10 and syntol probiotics for treatment of CFS. The benefits are long-term so it's hard to determine if there are any immediate effects. I've been taking this product for a few years now (on and off depending on finances.) Doctor's Best seems to be good value for money and iherb are great for processing and delivering orders. It's just a shame that they're in the USA and not Australia or the freight would be quicker (maybe!).

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