I was doing a search for yohimbine and I found a lot of posts but none htat really explained what it is. I keep seeing people talk about yohimbine and yohimburn. I read the stores definition, but from someone taking it, what exactly is it? Is it a thermo or just assists in fat breakdown or what?

I am taking an ECA now (it is Hydroxadrine) Waiting for that to run out then just going to search for pure ephedra (online of course... damn government) and do a simple EC stack. I know Fyre said a few times in posts that you like EC and Yohimbine. I see that there is a topical and an oral, which is better, or prefered?