As well as being one of Hollywood's most talented actresses, Julia Roberts is undoubtedly one of the most beautiful, but unlike many of her fellow colleagues she has never opted to undergo a facelift, a decision that could have potentially damaged her career.

Julia Roberts
Roberts has never had any cosmetic surgery done

In the midst of the media frenzy surrounding the obvious change in Renee Zellweger's facial appearance, Roberts offers her explanation as to why there is a lot of pressure on female stars to go under the knife.

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"By Hollywood standards, I guess I've already taken a big risk in not having had a facelift," she said to You Magazine while promoting her role as a beauty ambassador with Lancome. "But I've told Lancome that I want to be an ageing model - so they have to keep me for at least five more years until I'm over 50."

Roberts claims she has managed to maintain her natural beauty in middle age by "studying yoga on a more conscious level" and taking all unnecessary things out of her life. Finding peace in her personal life, which has been relatively low key despite being a huge movie star for the past twenty years, also contributed to her ageless appearance.

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"It's about non-grasping, non-hoarding, cleaning out your closet, dusting out your mind and letting go of the things that weigh you down mentally and emotionally," she said. "There's a lightness to my life now - an airy quality of not taking things too seriously. That's happiness."