How good is this stuff? is it really worth it? Which is better? Seems kind of pricy. Do ur levels go back to what they were after u stop taking it? How long can u take it for, is it bad to keep taking after pct is done? A lot of the info u read about is biased but I like what I read about icariin, anyone have experience with icariin? Hcgenerate es has icariin in it and I don't see it in the ingredients for the test stack17