if you're talking about clenbutrx from VPX, it's both. Gives you
a great energy boost before your work out ( if you take it before your workout ) and burns a lot of fat ( with the right kind of diet )
I accidentally found out how powerful it was, my leptin was low ( unbeknownced to me ) because I was on a very sub-maintenance low carb diet for a long time, and I had a cheat weekend, and then started fresh on monday while using clenbutrx ( the liquid version ) and I lost 2 inches off my waist by mid week .. it was simply amazing.
Always remember the diet part though, you ain't gonna burn fat if your insulin levels are up there, so do a 1 ckd week ( low carb, high protein, moderate to high fat ) while doing cardio / lifting and taking clenbutrx and you will see a marked improvement
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