Kate Middleton has long mastered the art of less-is-more beauty. Instead of a heavy foundation, her signature complexion leans fresh, radiant and quietly perfected - and it turns out her go-to base is a tinted moisturizer that enhances rather than masks. The product in question? The cult-favorite Laura Mercier Tinted Moisturizer, a staple known for delivering that soft, "your skin but better" finish.