I haven't had any sides, not any that I've noticed anyway. A lot of people say they get brain fog but I've *never* had it. In the past year my libido has been on/off though, sometimes ragingly high and other times low. Erections have always been good to rock solid, lol and I get morning wood every day so I definitely have NOT had any kind of ED. However, the past month I've had low libido but probably due to stress and over all depression from hairloss so I havent had much of a sex drive. If you guys are going for 10g of RU for $180, DEFINITELY count me in cuz my stash is starting to run low. I've got the funds ready for a purchase so there won't be any issues on my part.