I've tried it, and don't recommend it, 1 dosis (3 caps) contains only contains the same amount of ephedrine, caffeine as 1 dosis (for example) Xenadrine or Hydroxycut. But you only take one dosis a day, so you are getting less ingredients (unless you take 6 to 9 caps of thermicore, haven't tried that though). BetaLean worked best for me (also time relaesed, but only or three ours).