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iHerb Customer Reviews

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Posted by iHerb Customer on July 23 2008 | Verified Purchase

I had an allergic attack. My heart rate went to 170. I had to go to the hospital. I will mention that I did take the Niacin w/ out food. I am not sure if that would've made a difference for me...I would first consult doctor or take small sample size first to see how you would react. Niacin has helped my brother w/ lowering Cholesterol.

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Doesn't work

Posted by iHerb Customer on November 27 2017 | Verified Purchase

I bought this product to help lower my cholesterol and it's supposed to give a flush. Previous niacins have but this one doesn't but the warning on the bottle says it does so I don't think it is what I want

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Hot flush

Posted by iHerb Customer on March 31 2017 | Verified Purchase

Gave me a hot flush and red rashes when i took for two days. Googled it and yes its happened to others on a high does. 50mg fine..but 100mg is too much.

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too much flush...not enough relief.

Posted by iHerb Customer on March 4 2012 | Verified Purchase

Need 500 or 1000 mg slow release to get your moneys worth.

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Synthetic Bs

Posted by iHerb Customer on May 6 2016 | Verified Purchase

B3 from synthetic source = patchy red spots of asymmetric circulation B3 from whole food like Brewers yeast = Even flow of symmetric beauty But what about the toxin-flushing benefits? Your body doesn't respond well to shock. Period. If you want to be cheap and buy synthetic vitamins as opposed to Brewer's yeast, eating liver, bee pollen... Then health is clearly not your main priority. Do something, do it right. Signed Carlos

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