Voluma to slim face down?

Thank you for your question. Some patients are candidates for cheeks injections that will create the illusion of a slimmer face. Speak with an expert injector to discuss if cheek injections are a good fit for you. You could also consider Botox to the masseter to slim the face. Best, 

Injecting Voluma into the lateral cheeks can create the illusion of a slimmer, more heart-shaped face. Depending on your anatomy, you could also relax the masseter muscle with Botox to slim down the lower face, or even add a little Voluma to the chin to give it more of a point. Consulting a board-certified dermatologist will allow you to discuss your desires in depth and find out what your options are.

Because Voluma lifts better than any other filler on the market, it can make your face look thinner by lifting up the lower face and widening the mid face, therefore creating more balance.

Depending on your facial structure, augmenting the lateral cheeks with Juvederm Voluma may create the illusion of tapering your face.  In patients with a flat cheekbone (malar eminence) it can create a more angular appearance, and thus restore a "heart" shape to the middle and lower thirds of the face.  Voluma may also be used to augment the chin in appropriate patients, to create additional tapering.  Juvederm Voluma in concert with Botox for masseter reduction can create dramatic changes in the appearance of the middle and lower thirds of the face.  

Adding Voluma or any filler (Restylane, Radiesse, Jeuvederm, Sculptra, etc) to the upper cheeks (zygoma level) will give the illusion that the lower face is slimmer to a degree. If you have thick jaw muscles (masseter hypertrophy) then Botox in that muscle or micro liposuction of the jowls if appropriate is also helpful win appropriate to make the face more proportional (heart shaped youthful appearance).