Although the Queen has used Clarins since her coronation in 1952 - when she commissioned the company to make her own shade of lipstick to match the ceremonial robes - the French beauty brand has only held the royal warrant since 2007.
We can't confirm exactly which plant-based creams, balms and oils Her Majesty uses, but it is whispered in beauty circles that she is in fact a fan of the Ever Matte Mineral Powder Compact in Transparent Fair.
Suits you Ma'am.
Floris fragrances
Floris is the longest-reigning British beauty company in royal favour, boasting the warrant since 1820. The perfume company is still the Queen's own appointed perfumer today.
As discrete as its fragrances, the house won't reveal exactly which perfume she wears, but having rubbed their noses together, experts hazard a guess that it's White Rose, a bloom full of carnation, the Queen's favourite flower.
So entwined in royal history, Floris also created a limited edition Royal Arms Diamond Edition, a blend of jasmine and rose for the Golden Jubilee - an update on the original vanilla, patchouli perfume created to celebrate Queen Elizabeth's birth in 1926.
Essie nail polish in Ballet Slippers
The Queen will only wear Essie's Ballet Slippers nail polish according to sources. And what a fitting shade M'aam. Pale but not cold, nude but with a hint of pink and sheer but with just enough coverage for a healthy camouflage.
Where her signature bright, block colour wardrobe is designed to allow Queen Elizabeth II to stand out from the crowd, her Essie Ballet Slippers polish provides an understated matchy-matchy manicure for every colour she sports.
Spotted by the Huffington Post, the nail brand's website tells the story of the Queen's coiffeur sending a note to founder Essie Weingarten, asking for a bottle of the pale pink polish back in 1989 - the only shade the Queen would, and still does, wear.
And while the pretty little manicure may be mostly hidden under gloves, we know you're doing a polished pinky pirouette under those white gloves, Your Majesty.
Queen Victoria famously said it was "impolite to wear make-up". Things have obviously moved on; Queen Elizabeth II likes to wear a swipe of lippy now, and isn't afraid to let it be known.
We understand too that it was a shade by Elizabeth Arden, an American beauty house which also has the royal warrant.