But doesn't it also have ephedrine in it? Not just caffeine. IOn combination they are many times more powerful than just coffee.

I haven't tried it because ephedrine is very illegal up here (arg it sucks) But when I was bodybuilding I did use supplements of similar chemical design for years(When I had a supplier in Ontario). You get several affects from it.

1 - Weight loss
1a - muscle retention. The chemical makeup stops the body from using muscle as a fuel and forces it to use fat
2 - slight increase in body temp (.5 to 1.5 degrees celsius)
3 - you are UP and very awake and more alert

Some downsides if you take to much

1 - you are WAY UP. This can cause sleep problems and headaches
2 - There are other similar ones to headaches but they generally varry.

Would I use it again? In a heartbeat if I could find a supplier. IMO it has been made illegal wrongfully. I know the risks and probably understand the supplement better than ANY doctoc I have ever seen. I know how much is safe for me and when and how to cycle it properly. That is my last warning too. Don't overuse and use to long. If you plan to use a supplement cycle it in and out. 6 weeks on a few weeks off. DRINK LOTS OF WATER