Turn down the Sarah McLachlan—no ecosystems were harmed in the making of this manicure. This is Beauty Chemistry 101, where we test combinations of beauty products in all permutations and report back on the things that didn’t explode in our faces. Here we have our favorite off-black (a very deep, dark plum), OPI Lincoln Park After Dark, and the teal-to-neon-green-to-citrus-orange iridescent glitter bliss that is Uslu Airlines GIY. When combined, they make your nails shine like a scarab and sort of resemble a mesmerizing little drip of petrol on your driveway. Cool.

Photos by Mathea Millman.