Along with Labor Day weekend comes the bittersweet end to the summer, meaning now is the time to really enjoy the outdoors. Whether you’re heading to the beach, a backyard BBQ or the pool, the key to nailing fresh-face beauty is having the right barely-there products. With scorching temperatures across the country, this is easier said than done, so we enlisted one of Rachel Zoe’s favorite makeup artists, Sarah Uslan to help us navigate the melt-proof terrain. Here, the tricks of the trade for keeping makeup in place and looking effortlessly radiant.