Guido (Redken): “The hair is sort of sexy and voluminous—it's a very cool, very easy Alex Wang kind of girl. The hair's mostly natural, but we’re adding extensions and a lot of thickening lotion to bulk it up. And we're giving it movement by bending it using a curling iron, without clamping the iron or brushing. Then, we're give it a messy center part, and tucking it behind the ears, putting most of it at the back. In terms of products, Quick Tease lifts the roots and Powder Refresh gives a nice, matte finish. The volume is key to the luxe of it—normally grungy hair like this is quite thin—but we are being careful to avoid 'sexy beach hair.' Instead, it's a nonchalant, almost sloppy sexiness that feels more late-'90s. It's those glamorous girls—early Claudia Schiffer was an inspiration—but it's suddenly a little grungy. And instead of height, the hair has volume.”

Diane Kendal (Nars): “It’s all about raw beauty. We’re prepping the skin with Aqua Gel Moisturizer, which sinks into the skin and gives it a nice, luminous finish. Then, we're applying NARS concealer with a concealer brush, but we're not putting concealer under the eyes—just on red spots or any redness around the nose. Then we’re brushing the brows, using lip balm, and that’s it. This collection has a really nice silhouette, and the hair is very sexy and natural, too, so we’ve done a natural face to complement those elements.”

Behati Prinsloo photographed by Emily Weiss backstage at Alexander Wang Spring 2014 on September 7, 2013.