Don't bother with Lipodrene. That whole formula is a gimmick. Ephedrine is extracted from the stem of ephedra I believe. That's where the real, active alkaloids are found. If you look on Lipodrene's label it clearly states "extracted from leaves" or something like that.
This will give you nothing. I've ran EC before and I can tell you Lipodrene is not even close to it. I believe I went as high as like 3 or 4 tabs of Lipodrene when I got it and nada. With 4 tabs that's 100mg of ephedrine (from leaves)*, however if it actually had ephedrine in it, 1-2 tabs would easily rock you, at least for me it would.
Do yourself a favor and just get regular ephedrine hcl along with like a 100ct of 200mg caffeine tabs, it'll save you money and you'll be hella satisfied.
Don't fall for the ephedra gimmicks. Active ephedrine alkaloids are only found from the stems of ephedra not the leaves. Someone can correct me if I'm wrong.
With that said, I'd suggest you try out OEP. USPlabs is a top-notch, quality company and I love their bulk line. If I didn't get the Levi Reloaded BOGO, I would've jumped on OEP in a heartbeat.