Models face a conundrum every fashion week. While they have to look flawless for the countless photo ops, rushing from show to show and having thick facepaint slapped and on and then hastily removed takes it toll on even  the most genetically-blessed girls.

Renowned makeup artist Pat McGrath, who was called the 'world's best makeup artist' by Vogue, works with some of the biggest designers during fashion week. She convinced designer Victoria Beckham to use luxury skincare brand SK-II on the models as part of their pre-makeup skin prep.

Backstage at the Victoria Beckham FW15 show with SK-II

Beckhamsays: "The girls' skin is always really important to me — particularly this season as we were applying a smudged eye — so the skin had to be perfect." Beckham was particlularly impressed with the brand's signature mask. "I love what the SK-II Facial Treatment Mask does for your face... it's so rejuvenating."

Before she applied their makeup, McGrath started by applying the SK-II Facial Treatment Mask on each model, as she needed them to start with hydrated, healthy skin. Once the masks were peeled off, McGrath massaged any excess liquid into their skin to reveal a lasting glow.

As the next step, McGrath sprinkled a small amount of the brand's Miracle Water, their Facial Treatment Essence, onto a cotton pad and gently massaged that it into the skin. Finally the Eye Essence was also layered under the eye makeup as a base, so that any subsequent liner went on smoothly. The results were simply fabulous. The contrast of the glowing, smooth and radiant skin with the lightly-smudged, smoked-out eyes was the perfect modern pairing.