The super-natural look is achieved because the highlights are painted directly on the hair, not on a foil, like you may be used to. Not only does this give you a less precise look, but the lack of foil keeps the colour on top of the hair, instead of moving all the way through it, explains Hillier. “A foil conducts heat, and frosting doesn’t instigate any heat and allows the chemicals to act at the formulated pace,” she says. “These frosted bits feel more sheer and ribbon-like as opposed to a foil which is more dense and tinsel-like.”
Hillier says that while the name “frosted” usually refers to an icy tone, there’s room to wiggle and you can get the look with warmer, more golden tones as well. “It’s always best to show up with an inspiration photo of what you desire, allowing the hair colourist to navigate what is realistic to achieve and give a thorough consultation,” she says. “With a frosted look everyone must consider their skin tone and eye colour in order to complement what is best for you.”
Other things to consider? How much maintenance you want to commit to—this will determine the level of brightness you go for—as well as how natural you want the highlights to look, since they can range from sun-kissed to full-on money-piece vibes.