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Twinlab, Niacin (B-3) Caps, 500 mg, 100 Capsules (Discontinued Item)


Out of Stock - Discontinued
  • Shipping Weight: 0.84 lbs (0.38 kg)
  • Product Code: TWL-00630
  • UPC Code: 027434006309
  • Package Quantity: 100 Capsules
  • Dimensions: 4.5 x 2.4 x 2.4 in, 0.5 lbs (0.23 kg)
Product Overview


  • Crystalline Pure
  • Yeast-Free
  • Dietary Supplement

TwinLab Niacin (B-3) Caps are easier to swallow and assimilate.

Packaged in a glass bottle for maximum stability, quality and freshness.

This product is manufactured at our own state of the art facility.

Suggested Use

As a dietary supplement, take one capsule daily or as directed. For best results, take after meals.

Other Ingredients

Gelatin, cellulose, purified water, MCT, silica, vegetable stearic acid.

Free of most common allergens such as corn, yeast, rice, barley, wheat, lactose (milk sugar) and all milk, citrus, fish and egg products. No added flavorings, sugars, salt, artificial sweeteners, colorings, preservatives or salicylates.


Keep tightly closed in a cool, dry place.

Niacin may cause flushing, tingling, and skin reddening, particularly on an empty stomach.

Supplement Facts
Serving Size: 1 Capsule
  Amount Per Serving % Daily Value
Niacin 500 mg 2500%
iHerb Customer Reviews

good price

Posted by 5183614055286394781 on Oct 14, 2015

flushing only when you take it on empty stomach

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Posted by 5034739436424079232 on May 14, 2014

Very good for anxiety, fatigue, appetite, high cholesterol, low HDL cholesterol and other health issues, however, in large doses- above 1g daily- it can cause adverse efects- insomnia etc. Very good price.

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Hot red skin

Posted by Reviewer1802821 on Mar 01, 2013

I take this supplement and within 5 minutes i feel me very stranged and hot. I experience a big flush for more than a hour and it was quit uncomfortable and my skin was lobster red. And my skin start itching very much. So i take this not anymore. Next time im buying without the flush reaction...

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Very good quality

Posted by 4683000223110533003 on Dec 11, 2012

I like that you notice the absorption of this brand right away. You will get a high-intense flush at this level of mg. so beware it comes on fast and is intense. I have noticed that if you eat first and then take it, the flush won't be as extreme. I would not recommend taking it on an empty stomach. I personally like the flush as I know it is working and I am now no longer bothered by it.

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Posted by Reviewer1094254 on Nov 07, 2012

First took one capsule and the flush was quite something. So if a whole capsule is too much, break it down and sprinkle to your drink or food.

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