We’ve all seen those shampoo commercials—the kind where upbeat women prance around a city street or luxurious apartment with hair that’s ridiculously voluminous and shiny. There’s always that fun bit at the end, where they casually throw their hair over their shoulders and a blinding beam of light cascades down those perfectly styled tresses… to the maniacal delight of everyone around.

But forget whatever hair products they’re touting—what if you could have the same super-shiny hair all the time?

Well, a new hair colouring technique called “splashlights” could be your answer. Created by lightening a horizontal strip all the way around the hair, splashlights emulate the effect of beam of light hitting your hair. So it always looks shiny, no matter what the weather’s like, and whether you’re indoors or out.