Hi,
As the name implies smile lines are actually a natural part of our facial features and exist even in the young. It is natural for them to be more pronounced when we smile but if it appears deep even at rest then it makes one look aged.
The deepening of the lines is usually associated with development of a thickened nasolabial fold. The causes of this is usually twofold. A gravitational descent due to loss of skin elasticity and a volume displacement or loss of facial cheek fat.
Treatment options would be but not limited to the following:
1. Dermal fillers like HA fillers to correct the lines directly and or volume correction in the cheek
2. Use of HIFU or RF devices to restore skin collagen and elasticity to enable a lifting effect.
3 . Threadlifts to lift and contour the midface.
Hope this helps
