She almost always looks fully made-up and flawless, but yesterday Kim Kardashian revealed the unusual make-up required for her perfect complexion.
Tweeting a photo of herself with her face covered in what appears to be a yellow-based primer or colour corrector, the reality show star commented, "Glamming up with @1maryphillips!!! A little confused by her new technique BUT I know it will be fab!'
Yellow-based primers are used to conceal dark circles under the eyes and reduce redness, but they are usually used as spot treatments, not all over the entire face.
However make-up artist Mary Phillips must know what she's doing – her celebrity clients include Jennifer Lopez, Eva Longoria, Nicole Ritchie and Jessica Simpson.