I am interested in having my lips filled. When I smile my top lip curves under and looks like it recedes. Would a filler stop my lip from curling to this extent?
The top lip can be prevented from curling in or receeding with smiling simply by putting a small dose of Botox in the upper lip. This prevents the muscle from curling the lip in and making it disappear a bit when you smile. There is an unusual sensation that a few people get with this for a few weeks in the upper lip however, and you may feel difficulty using your upper lip, e.g difficulties using a straw or whistling. Dermal fillers would also definitely help bring out the lip simply through volume enhancement.