We may earn commission from links on this page, but we only recommend products we love. Promise. Kim Sun Hye Summer beauty comes with its challenges. Between pigment-melting heat, foundation-separating humidity, and layering hard-to-blend sunscreens, pulling together a flawless makeup look in the warmer months is no easy feat. But there’s one step in your routine that can tie your entire summer glam together—and stay unfazed by the weather: your lip combo. For summer 2026, the perfect lip combo needs to do two things: last for hours and hydrate, so you’ll need two specific products—an ultra-pigmented lip liner and moisturizing balm or lip gloss —to create the look. Whether you gravitate toward glossy neutrals or bright pops of color, a liner-and-glossy balm pairing can instantly elevate any beauty look while making the lips appear fuller. So, Cosmo’s beauty team rounded up the chicest lip combos we’ll be wearing on repeat all summer long.…