was amazing. lol Felt a little strange at first with that cold medicine entering my penis but it did not hurt and I'm not sore. It started working fast like with in 10 seconds after injecting. A little strange here also having my penis starting to get erect with no effort but hey I can get use to that. Not sure if this was just my mind messing with me but at first when we started having sex I felt a little numb but that didn't last long at all. Sex lasted about 30 min but could have went much longer. I was erect for about an hour & a half so next time I'm only going to use .1ml. I was prescribed .2ml but I feel like that was a bit to much if you know what I mean. Its going to take a few times to get use to it but yeah I'm blown away at trimix. With TRT & trimix hell I'm 19 again. lol