Sun Bum's Blonde Formula Hair Lightener is specifically formulated to brighten by amplifying the natural highlighting effects of the sun. Infused with Costa Rican pineapples and Hawaiian Lehua honey, our special UV-activated blend creates natural subtle tones and beautiful highlights. We couldn't be more stoked to share one of our best secrets with you. If you want cooler blonde tones, use our Blonde Tone Enhancer a few times a week (or more) as your leave-in conditioner.