I love the yohimbine/ caffeine/ tyrosine stack, very effective IMO, cheap and natural alternative. i use Lyle Mac Donald's protocol. I just tried the new supllmemnt " Plazmosis" brought under king kamali's name since he sent me some sample: great stuff, but the taste really sucks !!!! I did use
effedrin in the past when i was on the gear ( I'm off now ) and I loved this stuff, very powerfull ...