Sienna is often snapped strolling along an exotic beach or sunbathing on a yacht somewhere so she's always careful to stick to products that contain a high SPF to protect her skin against sun damage. Susan Posnick Colorflo is a mineral-based, SPF 26 foundation containing a unique light-diffusing formula. Containing gentle ingredients this foundation has a huge celebrity and make-up artist following thanks to its flawless finish and sweat-proof, water-resistant formula. Perfect for sun worshippers like Sienna.

 

£39.95, EF MediSpa