I just finished 6weeks @50mg ED and did feel my libido drop a bit, I could still perform but did not really want to all that often. I was also dieting on 2000 cals a day, with cardio EOD and ECA, I know from the past that ephedrine kills my libido so I blame the libido part on the ephedrine. I was in the middle of my cycle when another thread of this nature came up and I didn't have any meds.....said fuck it.....and used no PCT, I am at two weeks post cycle and feel just fine, never went through any sort of down feeling, libido is definitly back, got no acne except the stuff I always have and I didn't spend more money on meds on top of the already costly var.