Best Seller

Vitamin B3 Niacin

  • 500 mg, 100 capsules
  • Item # 00372
Best Seller

Vitamin B3 Niacin

  • 500 mg, 100 capsules
  • Item # 00372

Supports cell energy & already-healthy cholesterol levels.

Our best-selling supplement for supporting already-healthy cholesterol levels contains niacin, which is crucial for supporting the healthy metabolism of glucose, fat and alcohol.
Gluten free Non-GMO
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$0.06 / count | 100 Day Supply
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$0.05/count | 100 Day Supply

Good Niacin product.


I keep buying this product because it works.

Babs, FL

I take it every morning with my breakfast.

dog lover, CA

Frequently Bought Together

  • This Item: Vitamin B3 Niacin, 500 mg, 100 capsules
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Vitamin B3 Niacin

500 mg, 100 capsules


$0.06/count | 100 Day Supply

What Is Vitamin B3 Niacin?

Niacin is called B3 because it was the third B vitamin to be discovered. Supplementing with niacin can help people maintain already-healthy cholesterol levels, an attribute identified in the 1950s. This makes it one of the most-studied nutrients for this purpose. No wonder Vitamin B3 Niacin is our best-selling supplement for supporting already-healthy cholesterol levels..

Niacin is a B vitamin that can help to maintain already-healthy cholesterol levels and more.

  • Helps maintain already-healthy cholesterol levels
  • Supports healthy metabolism of glucose, fat & alcohol
  • Promotes cellular energy production

Vitamin B3 Niacin

Why Should I Supplement With Vitamin B3 Niacin?

"Niacin, also known as vitamin B3, has a variety of health benefits. Studies show that it supports healthy metabolism of glucose, fat and alcohol. Plus, it helps to maintain already healthy cholesterol levels and promote cellular energy production."

"Based on years of research, Life Extension developed Vitamin B3 Niacin. We recommend 500 milligrams of this vital nutrient, but it does come in a variety of doses."

--Dr. Michael A. Smith, MD: Director of Education and Spokesperson for Life Extension.

Niacin is a water-soluble nutrient crucial to energy transfer reactions, particularly the ones that help support healthy glucose (sugar), fat and alcohol metabolism.1,2 Niacin also helps metabolize the foods you eat and, like many B vitamins, promotes healthy cellular energy production.

These statements have not been evaluated by the Food and Drug Administration.
These products are not intended to diagnose, treat, cure, or prevent any disease.
  1. Curr Pharm Biotechnol. 2015;16(1):3-10.
  2. Linus Pauling Institute. Niacin. Accessed 8/2/19.
  3. J Clin Lipidol. 2017;11(6):1309-1317.
  4. Clin Nutr. 2015 Oct;34(5):838-44.

Serving Size 1 capsule

Amount Per Serving

Niacin (vitamin B3)

500 mg•

Other ingredients: gelatin, vegetable stearate.

•NE (Niacin equivalents)


Dosage and Use
  • Take one (1) capsule daily with meals, or as recommended by a healthcare practitioner.

Temporary flushing, itching, rash or gastric disturbances may occur. Liver function testing is recommended when niacin is taken in excess of 500 mg daily. Those with gout or liver diseases should avoid taking high doses of niacin.

  • Do not purchase if outer seal is broken or damaged.
  • When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

To report a serious adverse event or obtain product information, contact 1-866-280-2852.

Actual Size

Pill Size Image

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Life Extension. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer.

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