Have you ever wondered if you can chalk your hair extensions? Well here is a step-by-step tutorial on how to get non-permanent pastel coloured hair with clip-in hair extensions. The post includes a step-by-step video and collage showing exactly how to create the look and then how to wash it out of your extensions safely. I once let me daughter put her washable Pink hair chalk in my blonde hair. Let’s just say it didn’t go well. It didn’t wash out for a few weeks.