Maybelline Just Launched a New Rainbow Highlighter — and It's Extraordinary

Here's the finished rainbow look! If necessary, blend the edges out so it's less of a blatant streak and more of a seamless rainbow glow.

As an aside, you can certainly wear a rainbow on both cheeks, but I personally think it feels more playful to just do one side. On the other cheek, you can mix the colors together and highlight that way.