I prefer either the ECA stack or Labrada's Charge.
But, of course, there always is Clenbuterol and that works amazing too but oh, the sides, they're nasty.
Cramps
Heart pallipatations
Jitters like a motherfucker
No sleep or Passing out COLD from the ketotifen
Possible heart enlargement
Lower leptin levels (severely lower)
Reduced t3->t4 conversion upon cessetation for a short time.
Beta downregulation after 2-3 weeks (unless you use ketotifen)
It's an (unapproved but sold as "research") selective beta antagonist..think ephedera but lasting about 3 times as long and not worth the trouble imho.
My favorite thermo (err..used to be before unrelated medical issues) =
Pretty quickly in regards to hunger, If I dont force myself to eat I'm not hungry. 2mg Nicotine+100mg Caffeine has also been shown to raise metabolic rate ~10% and nic has positive effects on leptin (although this is more long term imho).
Just dont use it for extended periods of time for in my opinion a *Very* slight potential for addiction.