Posted by iHerb Customer on Dec 09, 2010 | Verified Purchase
This product causes elevated pulse and blood pressure, and shakiness. This happened with eachuse. I did not see a significant positive change in perfomance, but instead experienced intermittent loss of sexual sensation. I am a relatively healthy young man of 30 years. No cardiac or blood pressure issues. I would advise anybody who does have any health conditions to stear clear of this product! Not only was the product not effective, but I was very distracted by all the other things going on in my body ie. the shakes and my heart racing, so the experience was all around ungood. Very disapointed.