Well, with Provillus there no known or documented cases of side effects in any form. That's a relief then!

I do know when I took propecia that it lowered my sex drive a fair way (and if you want to get really graphic it also lowered the amount of sperm I was producing!)

But there's nothing along those lines with the use of Provillus.

One thing I must stress however – if you have any kind of medical condition please consult your doctor before taking this stuff, that's only the sensible thing to do!