Fina will "shut you down". Meaning for most it kills the sex drive, some have a problem getting it up etc etc
I find that I just "dont think about sex" as often. But I have no prob going 3 times in a row!! Not bad for almost 30
Alot of people say to take a moderate dose of test with it to keep the drive up. I personally dont mind not beating off 2 times a day, and picking up some skank at the end of the night just b/c I need to bust a nut!
Running fina without test didn't really affect my libido too much, but it did make me feel kind of crappy. Trust me, take some test, even if it's only 200mg.