only side I had were oily skin at about 3 week mark and slightly achy joints around the same time, but quite tolerable. Aside from that I felt rather euphoric, no rage, no short temper, killer pumps and muscle hardness 24x7. I injected though, no treansdermal for this kid. My labido was fine, actually up quite a bit. If your worried about labido, just have some test prop on hand just in case you need it and shoot 50mg/eod or so.