Sleek, shiny, and just the right amount of dishevelled, the Factory Girl actress’s ‘do was how we wish our poker straight bedhead look would work out for us every Friday night – yet never quite manage.
But thanks to celebrity-adored hair guru Luke Hersheson that’s a thing of the past, as the super stylist has revealed how he created Sienna’s perfectly preened golden mane that night.
Luke, who also beautified Cara Delevingne and Suki Waterhouse before the event, first ensured Sienna’s barnet was squeaky clean by giving it a double shampoo using Kérastase Cristalliste Bain Cristal Cheveux Shampoo, £12.
He then applied a dab of Kérastase Mousse Bouffante, £14.62, and rough-dried until 80% dry.
To finish Sienna’s blow-dry, Luke used Hershesons Ceramic Ionic Brush #2, £30, to help build volume and shine, and then ran over pieces of Sienna’s hair using Hershesons Titanium Ionic Professional Straighteners, £98.
A quick spritz of Kérastase Spray à Porter Tousled Effect Spray (£17.25) later and a soft backcombing session to create her tousled, dishevelled finish. and Sienna was good to go.
Well, we know what we’re practising when we get home tonight…
By Robyn Munson