The 29-year-old actress – who plays Kate Austen in the hit US TV show – admits she started surfing in the rough sea to cope with stress of filming, but the salty water soon took its toll on her complexion.

She said: "Last season of the show I surfed constantly, which was cathartic for me, but the sun and salt water wreaked havoc with my skin so, for the first time in my life, I had skin problems."

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