I did a lot of research before having it done and ruled out tricopigmentation pretty quickly, it's exactly the same treatment but just fades a lot quicker so you would have to go back every 6-12 months to have it all done again, same with HIS I went for a consultation and wasn't impressed, I saw one guy and it looked way too straight and drawn on, I went with Skalp because at the consultation I saw 2 guys having it done and all the practitioners have also had it done and they all looked natural, plus I haven't seem them do a bad job, just my 2 cents