Been there done that , VPX is good , have tried it , but comparitively if u are looking for an extraordinary thermogenic fatburner , i am sticking with XENADRINE NRG 8 HOUR POWER ............ this stuff is strong and works ........ i weight 193 lbs and would be taking about two to 4 pills of any other fatburners some of which even had ephedra ........ to get what i wanted to get out of them , this one ONLY took 1 ........ and it was enough to keep me going through my workout routine ............. right now if u got the money dont buy it from online website , try ebay ............ some ppl are selling them at good deals on ebay.

if u look up my thread in forum under

XENADRINE NRG 8 HOUR POWER ????

you will find DAMAN1 posted log link in it , which was enough to convinve me to try this i and never regreted i did. ciao