The actress said that she can't stand to be without her war-paint and told Glamour magazine that she tries to make sure that she can always get her hands on her foundation and mascara.
'I have a bunch of different make-up bags - one in my car, one in my handbag and one at home,' she confessed.
'I try to keep them small, but I have about five lip glosses, mascara, cover-up, lipstick and blush.'
The 34-year-old added that she has started paying more attention to her skin care now that she is getting older.
'I've always used moisturiser and SPF, but as you get older you really have to take care of your skin - you must take off your make-up and put on your moisturiser,' she said.