Photo: Courtesy of Adriana Lima

Leading up to Halloween weekend, the best beauty Instagrams were a practice in experimentation through makeup or fitness. Lady Gaga posted a super-close-up selfie of a spiked cat eye, the point of which was echoed in her similarly arched, dramatic brow. Behati Prinsloo made a statement of her own following a session with editorial makeup artist Fulvia Farolfi: The model captured one eye shaded with smoky shadow, and the other left bare. When it came to working up a sweat, Lais Ribeiro engaged in some alternative yoga with a partner supporting her, reverse Superman style. Meanwhile, Gigi Hadid posed shoulders above her trainer at Manhattan’s Gotham Gym with her arms flexed and ready for a tricep-toning boxing session, and Adriana Lima captured her own endorphin-boosting sweat session in close up. Here, our favorite envelope-pushing images of the moment.

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