The skin secrets of Cara Delevingne, Sienna Miller, Rosie Huntington-Whiteley and more. Prev18 of 31Next Image by Getty THANDIE NEWTON “I use Éminence bright skin booster serum. This stuff rocks! It’s not an overnight sensation – and only woks if you’re vigilant; applying after ever cleanse.” Éminence Bright Skin Licorice Root Booster Serum, £72 Prev18 of 31Next