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iHerb Customer Reviews

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Bioperiene tablets

Posted by iHerb Customer on Jun 16, 2010 | Verified Purchase

This stuff made me woosy to the point that I couldn't take it anymore.

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Side effects

Posted by iHerb Customer on Nov 11, 2008 | Verified Purchase

Bioperine (piperine) makes me feel slightly sick. I've experimented a few times, separated by months. I'll be avoiding it in the future.

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not for me

Posted by iHerb Customer on Jun 21, 2011 | Verified Purchase

I tried half a tablet and broke out in severe headache. I think I don't need these.

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weak potency

Posted by iHerb Customer on Jul 15, 2017 | Verified Purchase

I am using "0" empty capsules and fill them with ground black pepper instead. These are just too weak in potency in my opinion. Would have to take at least 4 with my Pregnenolone to feel them working.

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Not sure.

Posted by iHerb Customer on Nov 24, 2013 | Verified Purchase

Not sure about this supplement. I took it mostly for enhancing the absorption of other supplements, but I didn't noticed something different.

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cant feel the difference

Posted by iHerb Customer on Dec 18, 2012 | Verified Purchase

I cant feel any difference when i use this product.Maybe the effect is too subtile.

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Not so sure

Posted by iHerb Customer on Sep 12, 2011 | Verified Purchase

The first time I tried, they upset my stomach so I stopped after about 5 days. I will try them again after I get back from a long business trip. From my current experience, I can only rate it as 2 star.

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Nah...

Posted by iHerb Customer on Jan 05, 2016 | Verified Purchase

It's hard to tell wether these work or not since they don't have much effect on their own. I can take three at once, no heat and no noticable difference from other supplements. They're cheap though, so it doesn't hurt to giv'em a try.

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1-8 of 8 total