Ephedrine can be extremely powerful. It is a must-have, but you must find legitimate product. It's virtually impossible to be honest. I've tried a variety of websites over the years since Kaizen was made unavailable in the UK. 30mg is sufficient for me in a single dose and is much better when used as the form of an ECA stack. I've had a few luck in the past, however! Not sure if i'm allowed to publish links here, but the stuff they sell is as close to Kaizen as i have ever come. It's powerful stuff for sure. I've lost a ton of weight and am getting closer to 10 percent body fat. It's certainly worth the effort. Anyway yeah here's the link ECA stack UK (Sorry for my English i'm from Iceland)