best pastel blue hair dye i have used long lasting [SEP] i bought of these for or so when they were offered for free as long as you pay shipping at the vampire freaks online store i admit i was afraid to try it with little to no reviews and the fact they would let it go for so cheap after waiting several months i finally tried it it fades a little but it fades evenly for the past six or so months i have used of tubes and my hair is a pretty cotton candy blue another brand i tried for light blue would fade unevenly and with a greenish tone no green tone here just a pretty blue yes i bleached my hair before coloring