Kate Middleton is a big fan.

Kate Middleton's beauty routine, wedding makeup and favourite products are often talked about but it's rare that we see her using them. There's not much opportunity to whip out her favourite mascara during a royal engagement but at her Wimbledon appearance last week, the mum of three was spotted with a cult product we all know and love. None other than Clarins Instant Lip Perfector, priced at €20.

Kate was spotted using @clarins_uk Instant Light Natural Lip Perfector gloss in Rose Shimmer: https://t.co/Fs3BpkX1NN

via @hrhthekate & @luu297 pic.twitter.com/PrnbDsG7F0 — MiddletonMaven (@MiddletonMaven) July 4, 2019

It's one of those easy-to-wear lip products that you can apply in a hurry and thankfully, you don't have to worry about smearing it all over your teeth...the worst. Kate's fave is Rose Shimmer although it's sold out online at the moment, not that surprising considering she was pictured with it just last week. However, it's sure to be restocked soon and in the meantime, you can pick it up in Clarins stockists across the country. The gorgeous lip product is available in various shades of nude and pink but for autumn/winter, the hero beauty buy is getting a major update with four new shades. Intense Rosebud, Intense Maple, Intense Garnet and Intense Smoky Rose feature glorious new packaging, look at those stunning geometric shapes. They're part of Clarins Autumn 2019 collection which lands in counters and pharmacies nationwide on August 9. With a creamy and lightweight texture, the lip perfector really is the perfect product to have in your handbag for touch-ups on the go, as the Duchess demonstrated recently. Shea butter ensures your lips stay nourished and protected, ideal if you experience chapping on a regular basis and thankfully, we can confirm that it's a non-sticky formula, no one wants their hair sticking to their lips mid-conversation.