they are all about the same if you ask me . Nothing will replace cardio and diet. Open a magazine and every ad will tell you they has made the best fat burner. Bottom line it is personal prefrence. I prefer stacker 3's.
Doesn't clen elevate your body temp a lot? I have never used it but remember something about that. Proper dosing could be critical if not careful, right? I already have shaky-ass hands as it is, lol.
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