I've started using this new stuff from stacker,it's called XPLC.It's been working really well w/my workout and diet.It has green and white tea combined w/yohimbe and even has capsaicin it.That's the stuff that makes peppers hot,my doctor always told me to add hot peppers to my diet,now I can w/o burning my mouth.If anyone else has tried it,let me know what you think.