Queen Elizabeth II reportedly drank barley water daily to maintain her perfect complexion. Apart from being a fashion icon, the nonagenarian royal’s beauty must-have includes lipstick. She has been pictured on several occasions applying and re-touching her lipstick at public events.

The queen loves Clarins. The French brand is the 90-year-old royal’s favorite and has held the royal warrant since 2007. For her coronation in June 1952, Elizabeth especially commissioned Clarins for her own lipstick shade to match her robes.

It was a red-blue shade called “The Balmoral” named after her Scottish country home. Besides, at the Commonwealth Games in 2014, Elizabeth wore a shade of Pink Elizabeth Arden lipstick. The American cosmetic major also enjoys the royal warrant.

Queen applies lipstick as she sits next to her husband Prince Phillip Britain's Queen Elizabeth applies lipstick as she sits next to her husband Prince Phillip during the Braemar Royal Highland Gathering in Scotland September 3, 2011. Photo: REUTERS/DAVID MOIR

The longest-reigning British beauty company Floris, which has a royal warrant since 1820 is still the favorite perfumer of the queen. Though the label has not revealed what perfume the queen wears, according to experts it is reportedly White Rose, a bloom full of carnation, which is the queen's favorite flower.

Floris created a limited edition Royal Arms Diamond Edition, a blend of jasmine and rose for the Golden Jubilee of the queen. It was an update on the original vanilla, patchouli perfume created to celebrate Elizabeth’s birth in 1926. Besides, the queen is known to wear only Essie’s Ballet Slippers nail polish.

Meanwhile, the queen’s official birthday weekend gets underway with The National Service of Thanksgiving at St Paul’s Cathedral in London on Friday. The city has transformed into the national colors of red, white and blue in preparation for the momentous occasion. The Union Jacks have been hung all the way down the Mall, above Regent Street, and Oxford Street as the capital gets ready to party in honor of the queen.

On Saturday, the annual Trooping the Color will be held, followed by an RAF flypast over Buckingham Palace. Prince George is expected to participate in the event with a balcony appearance along with his parents Prince William and Kate Middleton. On Sunday there is heavy rain prediction, but the entire royal family along with Elizabeth and Prince Philip will then join 10,000 well-wishers for the Patron’s Lunch.

Peter Phillips, the queen’s grandson, whose company SEL is organizing the huge street party, with the picnic-style lunch, will provide guests with both a plastic rain poncho and sun cream in anticipation of Britain’s unpredictable weather.

Besides, the last in a series of official portraits of the queen along with her husband of 68 years has been released on the occasion of her official birthday weekend celebrations by Buckingham Palace Thursday. The portrait by Annie Leibovitz also celebrates the 95th birthday of the Duke of Edinburgh.