Hollywood starlet Mischa Barton is the new face of a health campaign which warns against the dangers of too much exposure to the sun.The OC star is the latest celebrity to front the skin awareness for everyone (Safe) campaign, launched by the Institute of Cancer Research and high-street chain Superdrug.The actress will pose for in-store posters and stress the need for protecting skin from sunlight, which can cause skin cancer.The 21-year-old said: "I spend a lot of my life in the sun and know how important it is to be sun aware and protect your skin."I hope that my support of Superdrug's important campaign will ensure everyone stays safe in the sun this summer whether at home, on holiday or even on the beaches of California."© Independent Television News Limited 2007. All rights reserved.