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Jarrow Formulas, Niacinamide, 250 mg, 100 Capsules

By Jarrow Formulas

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  • Product Code: JRW-18009
  • UPC Code: 790011180098
  • Package Quantity: 100 Capsules
  • Dimensions: 3.8 x 2 x 2 in, 0.15 lbs (0.07 kg)
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Product Overview

  • Flush Free
  • Promotes Energy Production
  • Dietary Supplement

Niacinamide is the form of niacin that circulates in the bloodstream and is needed for the synthesis of energy (ATP), the activation of folate and the regeneration of glutathione. Niacinamide and niacin are the two forms of vitamin B3. Niacinamide does not cause flushing or skin irritation.

Suggested Use

Usage: Take 1 capsule per day with a meal or as directed by your qualified healthcare professional.

Other Ingredients

Cellulose and magnesium stearate (vegetable source). Capsule consists of gelatin.

No wheat, no gluten, no soybeans, no dairy, no egg, no fish/shellfish, no peanuts/tree nuts.


Note: If you have a medical condition, are pregnant, lactating, trying to conceive, under the age of 18, or taking medications, consult your healthcare professional before using this product.

Keep out of the reach of children.

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Supplement Facts
Serving Size: 1 Capsule
Servings Per Container: 100
Amount Per Capsule % DV
Niacinamide 250 mg 1400%

iHerb Customer Reviews

5 Stars
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1 Stars

I get better results with low doses of niacin (not niacinamide). NOTE: may not be suitable for hypothyroid conditions

Posted by Health-Is-Wealth on Dec 21, 2013

I find I get better results taking small amounts of niacin instead (50mg or less), so will stick with that. I found 250mg of this to be way too much at once - took at night, had a fog-ache all the next day and was over-tired. Not the desired result at all. At this dose it depletes too many other things, necessitating their supplementation or increased doses to compensate - terrible if you've already had a difficult time trying to find a balance. Additionally, I've since read that niacin/niacinamide decreases thyroid hormone levels, which is true of my experience. In one small study - after a year of taking niacin, thyroid hormone levels had fallen significantly in each person. In another - thyroid hormone levels decreased in two people, and one of these two was diagnosed with hypothyroidism. Fortunately - when the niacin was discontinued for one month, thyroid hormone levels returned to normal. Please be careful. If this review was helpful to you, please click YES below - thank you. For reviews of all the products I have purchased from iHerb, please click my username above.

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24 people found the following review helpful

Help for Alzheimer's

Posted by Reviewer1214284 on Jul 09, 2009

I read an article about curing Alzheimer's with niacinamide in mice (Second Opinion newsletter, February 2009) - decided to try it - the niacinamide has helped my Mother very much, she is calmer, more alert, speaks better, more like her old self, I highly recommend it. I plan to double her niacinamide dose.

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18 people found the following review helpful

It is straightening out my system

Posted by Reviewer3026695 on Sep 07, 2009

six per day and it is already helping my joints, my clarity of mind, and a variety of other things that have been bothering me for the past decade.

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17 people found the following review helpful

Best B3, Quality and potent product

Posted by Reviewer1565230 on Sep 06, 2011

After trying B3 from multiple manufacturers including Thorne, Twin Lab, Herbs of Gold (Aus), Ortho Molecular Products. This Jarrow one is the best and most effective. A high quality and potent amount of Niacinamide, gives noticeable cognitive improvement, especially assisting anxiety, and shyness, clarity of mind. 1g dosage is typically taken and the affect lasts all day. Thanks iHerb, please continue to stock Jarrow Niacinamine.

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13 people found the following review helpful

Improves Memory

Posted by Reviewer1510021 on Feb 04, 2012

I read that taking Niacinamide daily, 250 mg capsule every 3 hrs for a maximum of 1500 mg per day would help improve memory. I didn't believe it, but I decided to try it because now that I'm in my 60's I seem to forget things that I could easily recall. I did this daily for approx 2 months, & I was quite surprised to see that I started being able to remember things and recall past events, marked improvement. It's hard to remember to take the capsules every 3 hrs, but it's worth the effort.

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8 people found the following review helpful

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