Customer Reviews

Jarrow Formulas, Niacinamide, 250 mg, 100 Capsules

$5.82
$8.95
Savings of: $3.13 (35% Off)
4.7 out of 5 based on 37 reviews
Write a Review
Customer Ratings
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Reviews English
Sort by

Items 1-5 of 37 total

« Previous | 1 2 3 4 5 | Next »

Help for Alzheimer's

15 people found the following review helpful

Posted by Reviewer1214284 on Jul 09, 2009

Purchased at iHerb

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.

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

It is straightening out my system

14 people found the following review helpful

Posted by Reviewer3026695 on Sep 07, 2009

Purchased at iHerb

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.

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

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

12 people found the following review helpful

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

Purchased at iHerb

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.

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

Best B3, Quality and potent product

9 people found the following review helpful

Posted by Reviewer1565230 on Sep 06, 2011

Purchased at iHerb

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.

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

Quality Product

7 people found the following review helpful

Posted by Reviewer3234992 on Dec 30, 2008

Purchased at iHerb

This is NOT a time release capsule as another reviewer stated. I chose this product because it is pharmaceutical grade, easy to swallow, has good absorption, and does not bother my stomach.

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

Items 1-5 of 37 total

« Previous | 1 2 3 4 5 | Next »

iHerbĀ® is a registered trademark of iHerb, Inc. Trusted Brands. Healthy Rewards. and the iHerb.com Trusted Brands. Healthy Rewards. Logo are trademarks of iHerb, Inc.


Disclaimer: Statements made, or products sold through this website, have not been evaluated by the United States Food and Drug Administration.
They are not intended to diagnose, treat, cure or prevent any disease. Read more »


Eco Friendly Initiatives