Diet pills will screw your body up, ephedra free or not. Diet pills are basically legalized cocaine. Is that *really* something you want to put in your body? Let me tell you a secret: Anything that promises to lose you more than 2 lbs a week is hurting you. I really hope you make the right decision and don't mess up your body *for life* just because you want to look better as a teenager. Good luck, -J