Kate Moss embarked on a four-day detox before posing for Playboy.
The British supermodel has posed for the 60th anniversary edition of the adult publication and the 39 year-old prepared for the skimpy shoot by undertaking the Master Detox programme at the LifeCo retreat in Turkey.
A source said: "Kate flew over a few days beforehand because she wanted to look perfect for her big moment."
The tough regime involved drinking fruit and vegetable juices and eliminating solid food in order to rid the body of toxins.
However, once the shoot was over, Kate returned to London and enjoyed a party to celebrate the Playboy anniversary and made the most of being free from the strict diet.
The source told Britain's Grazia magazine: "It was one hell of a party. After a turn on the dance floor, Kate was straight over to the VVIP area, where the champagne was flowing. At one point, she was draped over Sir Philip Green and she spent a lot of time talking to Donatella Versace - she looked like she was having a brilliant night."