Another for Lipo-6! That is what the fatburner I use when cutting up, and is what I recomend as a fat burner to my friends! As for energy though........Stim X blows everthing ,I've tried, away!! Ergo amp lasts like 3-4 hours for me, and then I fall on my face like with everything else! LOL! Stim X lasts a heck of a long time, and I havent fallen on my face yet, after the energy(like 10-12 hours later) has subsided. I 'm not sure as how it works as a fatburner, as I use it for energy to keep me going at work and stuff. I haven't tried IBE's X Factor yet though, wonder how that is?:think: