You can legally buy pure ephedrine in small quantities, but probably the only place you'll find it for sale is on the net. Ephedrineforsale is trustworthy from my experience. A couple weeks late with delivery, but they made up for it with additional product. The Bronkaid is okay, but not very potent, plus it's got Guaifenesin in huge quantities and you're not doing your body any favor cramming it with Guaifenesin. If you don't know this already, don't waste your money on ECA products that are pre-combined. The cost of building your own ECA is way cheaper. If you've studied the science literature on these catecholamine stimulants, you have probably heard of different ways of activating thermogenesis. ECA starts to build tolerance becuase of it's means of action, so another route that doesn't appear to have such high tolerance (if any) is Yohimbine HCl. I won't go into the details, but rather just say that it works for me far better than ECA, and it's way cheaper. Nutraplanet sells it in raw alkaline powder for $2.50 a gram. At ~15-20mg per dose, that's 50-67 doses for $2.50. I find Yohimbine HCl to be much more effective, and it really works to supress appetite in addition to thermogenesis. I also don't think there's any substantiated evidence showing that adding the Aspirin to the EC makes much of any difference in thermogenesis. The aspirin is really just a safety measure if you're taking EC daily as your blood pressure will elevate from the stimulant effects of the catecholamines.