Sun Bum Blonde Hair Lightener is a coloring treatment for all hair types. This hair lightener is specifically formulated to intensify the sun's natural highlighting effects, giving your strands that natural, sun-kissed look we love. The UV-activated formula of Blonde Hair Lightener is sprayed onto a transparent surface and uses naturally derived ingredients like Costa Rican pineapple and Meyer lemon to help create naturally looking blonde highlights. The hydrogen peroxide in the mix gives an extra boost to the hair lightening power. And yes, the results are permanent.