Just popped over from Beauty for help with a dilemma I'm having! I recently had this done on my hair and have followed the instructions to wash my hair with sulfate free shampoo, but as I have very thick hair it needs cutting every six weeks. The hairdressers I go to is kind of posh when I asked was it possible for me to have my hair washed when I'm having it cut with sulfate free shampoo they said no. They also don't do dry cuts! I really love how my hair is cut there but my question is (sorry for the ramble!) if I did end up having my hair washed without sulfate free shampoo would it totally wash the treatment out of my hair? It's a pretty expensive treatment so don't want to waste it!