Not a rep, just a consumer. Listen to people who have tried all the fatburners mentioned/being recommended here. I've tried them all, for extended periods of time. Dexaprine 1, V2 etc. both are very good products, especially in terms of offering energy. Also used OEP, again good in terms of energy. Alphamine in my opinion, based on my results with no other variable thrown into the mix produced the fastest, most measurable results in just a matter of weeks, WEEKS.
The other fatburners have their place, but if you're looking for something that separates itself from the rest of the pack based on fast, measurable results in less time...ALPHAMINE ALL DAY. Alpha-T2 coupled with a stim also works incredibly well. Remember not a rep and I've tried most of the products being discussed her, take that for what it's worth.