Even the sexiest woman in the world needs a day off! Mila Kunis reveals her flawless skin as she goes make-up free

PUBLISHED: 23:48, 13 March 2013 | UPDATED: 09:23, 14 March 2013

She is undoubtedly one of the most beautiful women in the world but Mila Kunis has shown that even she likes to have a day off from slathering herself in rouge.

Seen leaving her London hotel completely make-up free the 29-year-old actress showed off her flawless skin and natural beauty.

Make-up-free: Mila reveals her flawless skin as she leaves her London hotel sans slap

Even celebrities have off days: Mila obviously didn't want to cake herself in make-up on Wednesday - pictured right, the star at the Oz premiere in London on February 28

Far from trying to lay low the Oz star, who was wearing a comfortable tracksuit, smiled at onlookers and even managed a wave at some fans.

Last year the Ukrainian-born beauty was named Esquire’s ‘Sexiest Woman Alive’ and even ranked third in Maxim Hot 100 Women list.

But down to earth Mila is known in Hollywood for her casual approach to beauty and is often seen with messy hair wearing sports clothes during her down time.

Refreshingly Mila even said recently: 'You’ve got to base your career on something other than being FHM’s top 100 number one girl.

Years younger: Going bare-faced shaved years off the Oz star

'Your looks are going to die out, and then what’s going to be left?'

And fans of the star were left impressed with her attitude after an interview of Mila joking with a young reporter went viral.

The gorgeous brunette was perfectly charming with Radio 1's Chris Stark who ditched any pretense of professionalism during his interview with the star who is dating actor Ashton Kutcher.

Expecting the usual question and answer session, Mila, 29, ended up having what she described as 'the best interview' after she was invited to watch Watford FC and tuck into some chicken at Nandos.

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Relax: Mila told Chris that he had nothing to worry about as she tried to help him overcome his nerves

'It's not that scary': Stark invited Mila to trip to his local in Watford to do shots of Jägermeister

'It's not that scary': Stark invited Mila to his local pub in Watford to do shots of Jägermeister

Almost three minutes in and realising that he hadn't yet asked any questions about Mila's latest film, Chris tried to change the subject.

But protesting, Mila said: 'Why? This is way more fun for me I have to tell you. Please?'

Cheeky Chris even asked Mila if she would be his 'plus one' to a wedding in June, but Kunis said she had to decline as she would be making a film, although she joked that she had a reputation for 'saying yes to everything' after accepting US serviceman Sergeant Scott Moore's invitation to his Marine Corps ball in 2011.

As Chris became ever more worried that he had jeopardised his job, Mila assured him: 'This is the best interview I've had today!'