Does Botox Work for Lips and How Long Does It Last?

If you want fuller lips then you want a filler such as Juvederm.  Botox can be used to help reduce wrinkles above the lips, but there are other more proven methods for this area - such as laser treatments and other dermal fillers. 
 

Botox is used to relax muscles, not add volume.  In some cases lip lines caused by muscle action ("puckering") can be improved by treatment with botulinum toxins such as Botox, Dysport, or Xeomin.  These products also can produce eversion of the lips.  With injection of higher doses, difficulty smiling or "puckering" can result.  Injectable fillers such as Juvederm and Restylane may be used to improve the appearance of lines caused by volume loss in the lips and laser skin resurfacing procedures are used to treat wrinkled lip skin.  Sometimes botulinum toxins, fillers, and lasers are all needed to obtain best outcomes.