She became the Duchess of Cambridge when she married Prince William in April, came out top in a poll of 3,000 women.
In second place was Kate’s younger sister Pippa, 28. Third place in the Superdrug poll went to last year’s winner Cheryl Cole.
In a strong showing of support for brunette Brits, singer Cheryl Cole placed third on the list, while Rihanna (#4), Beyoncé (#7), Emma Watson (#8), Katy Pery (#9), Victoria Beckham (#10), Lady Gaga (#12), Adele (#16), Angelina Jolie (#18), Keira Knightley (#19), and Scarlett Johansson (#20) also won high marks for their beauty look.
The survey also reveals what impact celebrities have on beauty trends and buying habits.