Call it the Instagram-effect, but unicorn makeup is officially a *thing* in beauty. Anything opalescent, holographic, rainbow or bright pastels falls under the magical umbrella term of unicorn, and can apply to eye makeup, highlighters, lips, nails, you name it. So why now? It’s fun, it’s playful, it’s pretty. It’s also about getting a three-dimensional, multi-spectrum glow that traditional sheen just does not have. The key to avoiding any patchiness of color is with a well-moisturized base, but that’s about it when it comes to the rules. If you want to ease into the look, a pastel-colored mascara accompanied by an opalescent lipstick is stunning and very “now,” while to go whole unicorn, get holographic-heavy on the eyeliner, highlighter and lips, and prepare to be enchanting all day.