Best Bet: Aqualillies for Tarte Waterproof Eyeliner

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Photo: Courtesy of Tarte

Mermaids don't actually exist, but if they did, they'd probably want to swim up from their watery castles for a swipe of Tarte's newest sparkling aqua-hued eyeliner. Maureen Kelly, the makeup company's founder, was so dazzled by a Glee episode featuring the Aqualillies (a troupe of synchronized swimmers) that she created a whole collection of splash-proof makeup. This particular cream liner should withstand the wettest elements you face, whether sweat, tears, or spontaneous summer storms. 

Aqualillies for Tarte Amazonian Clay Waterproof Eyeliner in Splash, $24