iHerb Customer Reviews
Too much filler and no flush - prefer Natural Factors 100mg tablets (which only contain cellulose - NO stearate)
9 people found the following review helpful
Posted by Health-Is-Wealth on Mar 15, 2014
Forget cholesterol, there are so many other reasons to take niacin as (un-reduced) nicotinic acid. NAD dependent enzymes include ---> Salicylate 1-monooxygenase, Kynurenine 3-monooxygenase, Tryptophan dehydrogenase, Mercury(II) reductase, Progesterone 5alpha-reductase, Estradiol dehydrogenases, Formyltetrahydrofolate dehydrogenase, Pteridine reductase, etc etc. If you have issues with 'asthma', CFS, MCS, salicylates, hormones, depression, tryptophan metabolism, folate metabolism - I recommend looking into NAD enzymes. Testing this brand vs Natural Factors 100mg tablet, I got absolutely zero flush. Natural Factors 100mg tablets are also easy to cut in half and only contain one filler - cellulose. These are more expensive and no more hypoallergenic than NF. Be aware that high doses of niacin/niacinamide can cause hypothyroidism - I found a few studies on pub med that noted this side effect (they also noted it resolved one month after discontinuing use) - suggest caution for anyone with thyroid issues. Niacin as nicotinic acid is also noted as resulting in decreased thyroxine binding globulin. 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.
7 people found the following review helpful
Posted by wendybrown on Jul 02, 2010
bought this for my dad and he said he flushed the first time using it. As flushing may uncomfortable, it is best to buy the flushing kind cause you are releasing toxins thru the skin. The timed release can eventually cause damage to liver.
Bluebonnet Nutrition, Niacin, 100 mg, 90 Veggie Capsules
2 people found the following review helpful
Posted by noneofyourfrigginbusiness on Dec 20, 2008
☆ ☆ ☆ ☆ ☆ (5/5). A high quality niacin product. A+
Bluebonnet Nutrition Niacin
1 person found the following review helpful
Posted by Reviewer2680862 on Jul 11, 2008
I am pleased that iHerb sells this product
Good product so far
Posted by Reviewer1168101 on Sep 16, 2011
We do get a flush with this niacin, but we expected it. I understand that this form is good for lowering cholesterol. The capsules are small so are easy to take.