(Cover) - EN Star Style - Kate Middleton's must-have beauty product is an oxygen-enriched face cream, it has been reported.

Kate is currently engaged to Britains Prince William, with the pair set to tie the knot on Friday April 29 at Westminster Abbey in London. Since announcing the engagement, the beauty has found herself under intense scrutiny from the glare of the media spotlight.

The royal-to-be has been praised for her elegant style and striking good looks by experts across the globe, and it has been reported that the stunning star keeps her skin photo-ready by using Karin Herzog's Oxygen face cream.

The perfectly groomed brunette uses the gentle oxygen-enriched formula to cleanse and detox her skin, which helps her maintain her trademark glowing look, according to Marie Claire. The face cream also fights against spot-causing bacteria which ensures she is always blemish-free.

The 29-year-old and Prince William have been revealing the details of their big day in stages, but have kept specific details guarded. Kates much-anticipated wedding dress has been one of the most speculated secrets of the big day, with the designer still unknown. (C) Cover Media