Sickly,
Well...no....i am not 100% sure, but who really is. I think it cannot be proven. It's inconcluive for this reason.
Say you take clen for 3 weeks and log your results-
and then took eph. for 3 weeks and compared results-
ephedrine might come up short due to receptor downgrade-
BUT- if you use them both together and are getting good results, how do you know which one it is? Maybe that 60cents a pill for clen is being wasted.
Like i said it's hard to tell, but why would you want to waste money.
Tell you what, send me all your clen and i will do and experiment
(haha)
But good luck anyway, maybe you can keep us posted