You've smoothed on your foundation and blended it into your jawline. You've perfected your cat-eye and made sure both angles were even. You've painted your lips and even used concealer for a crisp line. But, once you head out the door, BAM — you end up looking like a mess. Sound familiar? Yep, and you can thank the heat for that. While it's not yet summer, just thinking about moving an inch in 80-degree weather and sweating all over (in a very non-music-video-like fashion) makes us willing to go to any length to keep our makeup where it belongs. That's why we're prepping with long-wear beauty products. These unsung heroes are the secrets to looking flawless even in the hottest of climates — and we're showing you how to use 'em with a few pro essentials from the L’Oréal Paris Infallible line. Watch above for the breakdown, and keep your makeup from melting off this season. Written by Jada Wong, Beauty expertise by Heather Muir, Makeup by Ashleigh Ciucci, Hair by Matthew Tuozzoli, Styled by Bethie, Photographed by Ali Gavillet, Shot by Liam Le Guillou, Edited by Amanda Madden.