Sabine Marcelis has become a design breakout star, her minimal-yet-colorful work in glass and resin having penetrated the worlds of architecture, fashion, music, and TikTok. Now she’s conquered yet another realm of wider culture — beauty — through a major collaboration with the Swiss skincare brand La Prairie, with whom she’s just launched a vanity tray that marries her signature use of resin with the brand’s signature shade of cobalt. We decided it was a good moment to catch up with Marcelis, and talk to her not only about this project, but also about what materials she’s been experimenting with lately, how she feels in the wake of all the social media hype, and why she — cobalt excluded, of course — doesn’t actually like the color blue.