i did notice a strength increase, a pretty big one at that, but i wasn't sure if it was the clen. being that i was doing nothing else i suppose it probably was. i guess i just expected to much as far as it being a fat burner. you know, now that i think about it i think i will finish off the rest of it. this was my first cycle of clen and i did 2 weeks on and was going to take 2 weeks off. just how long does it take for your receptors to recuperate? can i only wait a week and do another 2 week cycle? just when the side effects were pretty much tolerable and i noticed a good strength gain the two weeks was up, maybe if i had gone one more week i would have saw better results????