Brows Key to stay-proof brows is waterproof/waterresistant formulations that won’t melt away during the summer heat. Follow with a setting powder to keep product from slipping. Still, for those seriously brow challenged, water-resistant formulas can only do so much. Malynda Vigliotti (aka Boom Boom), owner of Boom Boom Brow Bar in New York City, recommends getting a brow tint. “It’s a fun summer beauty service for anybody who's trying to achieve bigger, bolder brows,” she says. “Plus, you can get away with wearing less makeup, too.” And, of course, there’s always the microblading/microshading option for brows that will last all summer long.