Emma Watson says her biggest beauty faux-pas is wearing too much make-up.

The 'Harry Potter' actress prefers the natural look and hates piling on cosmetics as she thinks beauty comes from within.

She said: "The funny thing about me is that I do have a lot of products - I've always loved make-up and its ability to transform you. But I don't actually wear a lot of it, so there is an irony that I own so much of it but wear so little. But I do love beauty products.

"But wearing too much make-up has been my biggest beauty faux-pas. I truly, truly believe that beauty is something that comes from within. You can only really look beautiful if you feel beautiful on the inside. It shows through your face, the way you move and the way you hold yourself."

The 21-year-old beauty also gave other tips on how to look good.

She told Britain's Hello! magazine: "Don't over-pluck your eyebrows and always take your make-up off before you got to bed."