When Liv Tyler calls a beauty product her “favorite thing in the universe,” you pay attention. In her Top Shelf, she told us she's so “hooked' on Caudalie’s Beauty Elixir that she stocks them in two sizes, regular and “travel-size, to take on the plane.” Tyler is the latest in a long line of Beauty Elixir devotees, who stash the potent spray in their medicine cabinets, bags, and dopp kits. And with good reason: the grape-seed-extract-infused mist has numerous suggested uses, including as a toner, serum, midday refresher, and makeup setter (not to mention the ways it’s employed by our Top Shelf-ers). It's a single spray that helps you immediately look better and physically feel better.

But we think the true magic lies in its ability to give you a slept-in, slightly un-perfect edge— stylist Julia von Beohm sprays it on top of her makeup, for a “lived in” look— or as an instant pick-me-up (Paris transplant Jessica Noghes-Menio utilizes the mist “to add a sort of freshness during the day.”) While Caudalie claims its cult product, inspired by Queen Isabelle of Hungary’s 'elixir of youth,' “visibly smoothes features' and “tightens the appearance of pores,” ITG’s Nick and Emily can promise that it “delivers a boost of radiance after your computer’s all but drained the life from your face.” Thankfully for us, you can now procure it stateside, though this fact doesn't stop Karlie Kloss and actress Roxane Mesquida from stocking up while in France, at the cheaper Paris-drugstore price. Why? Kloss calls it, simply, “amazing.”

Photos by Mathea Millman.