Not exactly temporary! [SEP] This was pretty good stuff! It was pretty bright at first and faded into a lighter blue that I really liked! I wanted something temporary just for fun. The box says it lasts for 5-10 shampoos and I'm on shampoo #15 and it was still so blue...faded but not coming out...I bleached my hair again because last time I colored my hair, the bleach got the color out too. This color will not come out of my hair!