The first day I took Bioperine I in the morning, with my vitamins and with my treatment (designed for regulate my heart beats). My pulses decreased falling from 60 to 48. SO ... What I'm saying here is there was a side effect because my treatment was more efficient and every one who's taking piperine extract should be aware of that. And obviously, Bioperine is increasing bio availibility, and here's a proof it's working on a larger scale. As for a secondary benefit, I'm taking now half a pill of my treatment and it seems to be working properly. So just take care and be aware it could happen for you on molecules you're taking for your desease, not only vitamins are concerned here. Bioperine is doing exactly what it's designed for, perhaps too much better, that's why I rated 5 stars.
Posted by iHerb Customer on May 13 2010 | Verified Purchase
Supposed to wildly increase the adsorption of Curcumin and perhaps other supplements
Posted by TriedandTested on September 7 2013 | Verified Purchase
I take 1 tablet twice a day in the hopes of increasing the amount of nutrients absorbed by my system, but I'm not sure if it's helped after taking this for 4 months.
Posted by Thoughtful-Reviews on April 29 2013 | Verified Purchase
I didn't feel any increase in effect when I take this with my blood pressure meds. But that's not conclusive though, I would have to be more scientific about. Anyways ... research and clinical trials show a significant effect when taken with prescription meds ... so, please be forewarned when using this. The plus side is, if you already know that it /potentiates/ the effect of the drug you take, you can decrease its dosage while using BioPerine. Result? you save on your drug expenses! (You need first to know how it affects you though. And better -- consult with your MD). >>> To get more /Nuggets and Tips/ on products me and my family have actually bought and used... ... Click the link above [[Posted By Thoughtful-Reviews]]. Thanks for reading! <<<"
Posted by iHerb Customer on January 6 2017 | Verified Purchase
I have not experienced any noticeable effect (positive or negative) since starting this product. It's difficult for me to determine whether the bioavailability of my vitamins or other supplements is enhanced by this product.
Posted by nutranut on December 4 2012 | Verified Purchase
I add bioperine to my other supplements in order to increase their absorption. The research I have done indicates that this will enhance the bioavailability of other supplements. When you go to the time, trouble, (not to mention the expense), of taking supplements, you want to get as much out of them as you can. Some of my supplements are to enhance good health and prevention, but some supplements that I take are to help with certain conditions. I want to do the most I can to make sure my body absorbs and uses the supplements I'm taking. Otherwise I won't know if it's the lack of absorption or if the supplements didn't work or if I just didn't need them.
Posted by iHerb Customer on June 11 2011 | Verified Purchase
Unfortunately, has a lot of preserves.
Posted by iHerb Customer on May 1 2010 | Verified Purchase
Hope it helps.
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