I grew up in Finland, a country known for its embrace of sub-zero activities. Cold plunges and ice swimming? No sweat. But I never considered that these traditions might extend into the world of cosmetics.

At an Urban Decay makeup masterclass with Melissa Hernandez, a renowned makeup artist whose notable clients include Amanda Seyfried and Olivia Rodrigo, I watched as she worked magic using the brand’s new Naked Shaped Multitasking Eyeshadow Palettes ($56, Sephora.com). During the masterclass, Hernandez dropped some beauty-focused fun facts, which I eagerly jotted down. First, loves devoting a solid two hours to a glam session. Second, she swears by layering her setting spray. Finally, she enlists the help of a surprising household item to prep her A-list clients’ skin before makeup appli

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