How to Get Glowing Skin a la Stella McCartney's Models

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A model backstage before Stella McCartney's fall 2015 show.

Kenzo's catwalkers also got mini-facials backstage, and here's how you can try the "flash facial" at home too.

By the time models reach Paris, the last stop in a month of fashion weeks, their skin is wrecked. Helping bring it back to life backstage at Kenzo and Stella McCartney this week? A four-step "flash facial" using Sunday Riley products.

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The complexion pick-me-up was critical, since the beauty look at Stella McCartney was "barely there," and Kenzo's catwalkers wore only simple slashes of white eyeshadow. At both, the girls lined up for the brief but welcome massage and pampering time provided by the Sunday Riley facialists before they went into hair and makeup. Lucky for us, the runway-ready treatment is easy to recreate at home.

Models on the Kenzo fall 2015 runway.

First, mix one pump of Sunday Riley Ceramic Slip Cleanser (a gel-based foaming clay cleanser, $45) with three pumps of Good Genes Treatment ($105), which is a lactic acid–based best-selling product that refines and brightens. Apply to the skin and leave on for five to 10 minutes before washing it off.

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Second, dispense a pea-sized amount of Start Over Active Eye Cream ($85) onto the tips of the fingers and apply gently to the underage area. This lifting product hydrates and dramatically reduces puffiness and dark circles—a must for road-weary models. Expert tip: Store it in the fridge for a cooling sensation upon application.

Models on the Stella McCartney fall 2015 runway.

Third, rub one to two drops of Hydroactive Cellular Face Oil ($125) into the palms of the hands and gently pat onto the face for instant radiance without any oiliness. Lastly, the facialists used one of three shades of Sunday Riley's Smooth Effortless Breathable Tinted Primer ($48) on the girls' complexions to blur any stubborn imperfections, oxygenate the skin and increase moisture so makeup goes on like porcelain. And voila: four steps to the illusion of perfect runway skin.