As people age, the mouth goes through various changes. The upper lip becomes longer and sags, the Vermilion becomes fine and acquires a set look. The corners of the lip drop, and the shape becomes indistinct as the “lip roll” and the philtrum compress and the “cupid’s bow” loses its curves.
Lip lift shortens the lengthened lip of old age, thus letting the upper teeth show when the lips get a bit parted. It reverts majority of the upper lip vermilion, thereby making the thin lips look youthful.