A new study has revealed that women, who have full, firm lips like those of Angelina Jolie's, look much younger than they really are.
Jolie's lips have been voted the most desirable in the world in a poll where women longed to look like the beautiful actress.
Researchers believe that even if a woman gets wrinkles and her hair loses its sheen and begins to grey, fuller lips can save the day.
The experts also found why lips become shrivelled or stay firm is mainly determined by genes not just external causes like sun damage.
The findings of the Unilever study at seven world universities appear to confirm that a full pout is a key sign of sexual allure, reports the Daily Express.
Previous studies have also determined facial attractiveness is a combination of large eyes and full lips as well as the relationship between the face contour and the eyes, mouth and nose.
Lip shrinkage usually begins between the ages of 30 and 40.