Will botox in the jaw give a more heart shaped face? (photo)

Hello Natural.  Botox/Dysport in the masseter muscle does help create a more heart shaped appearance in those that have a very prominent jaw muscle.  You do not have this issue so injecting Botox /Dysport in the jawline would not achieve your goals.  Best of luck.

Thank you for your question. Botox can be injected into these areas to create a softer look. The botox will essentially relax the muscles creating the appearance of atrophic muscles. The results will last up to 3-4 months hence you will have to re-inject roughly 3x per year. When administered by an expert injector you shouldn't have an issue with too much laxity. The biggest issue will be muscle weakness if you inject too large doses, which will be required in larger muscles (as compared to cosmetic forehead/face injections) See an expert. Best, Dr. Emer.

Botox, when injected into the masseter muscle, will help to feminize a jawline that is too square or masculine by relaxing the muscle and making it look more slender. Keep in mind the importance of having a consultation with a very experienced board certified plastic surgeon. Such injections require a skilled, meticulous and artistic injection technique.  

Slimming the face for a more inverted triangle shape can be done multiple ways depending on the current shape and anatomy of your face. For your cheeks, conservative buccal fat pad removal can bring in your cheeks for more contour and cheekbone definition. Some patients have "boxy" faces due to large jaw muscles when they clench their teeth. These muscles can be thinned with Botox injections. Injecting botox along the jawline also sharpens the jaw by relaxing the platysma muscle layer over the angle of the jaw so the sharpness is more noticeable. Botox will  not cause jowling. Other options including building your cheek bones with filler to make your face more heart or oval shaped. Hope this helps!
Johnson C. Lee, MD
Board-Certified Plastic Surgeon

Patient's with masseter muscle hypertrophy (enlargement of the muscle the moves your lower jaw when you chew) can benefit ascetically  from botox injections to thin that muscle.  This will theoretically give a patient a more heart shaped face, as it will narrow your lower face.   You mentioned that you do not want fillers, however, filling the upper face/cheek can also help.  I don't think you will achieve the results you are looking for with botox to the masseter as that area on you is not too prominent.  You should see a PS that can evaluate you in person and give you multiple options.

You are actually one of those patients who should never have botox injected into the masseter muscle because that area on your face is already hollowed out. You need to see a plastic surgeon who can help you restore the volume or the shape you desire. Good luck from New York City

Dear LA,You have a beautiful face.If you a desire a more hear shaped face, however, filler to the mid face, chin implant and Liposculpting along the jawline would bring more of that heart shape out.Best. Dr Brecht Seattle, Wa