Tinsel, unfortunately for me the perm did stick!! My hair didn't change with pregnancy, colours etc stick the same as any other time. I even have pics to prove the perm... waaahhhhh....pmsl. Everything is fine to do your hair... I know that I had mine done just a couple of weeks before I was due cos I wasn't going to feel all old and gross after having my bubba!!! Did wonders for making me feel great