Why is one jaw fuller than the other - what can I do to even out the two sides, non surgically?

Photos would be helpful but in general, jawline liposuction works best to provide a well defined jawline. Botox to the masseter muscle has limited noticeable changes. Good luck

Hi anon.  If the jaw muscle is making one side larger than the other, then a good option is Botox or Dysport.  This can help shrink the muscle and make the sides closer in size.  If it is the jaw structure and you want to make one side larger, then dermal fillers can help with that.  To see an example of jaw slimming with Botox (Dysport), click on the link below.  

Dear anon705991,it is hard to tell without an examination. Generally speaking,you can make one side slimmer by using Botox or you can use dermal fillers on the other side. I would suggest you to consult a board-certified plastic surgeon. Only after a thorough examination you will get more information and recommendations.Daniel Barrett, MD, MHA, MS 
Certified, American Board of Plastic Surgery  
Member, Am. Society of Plastic Surgery

Botox and radiofrequency treatments can slim the jawline and improve symmetry. I recommend getting a formal evaluation with a cosmetic dermatologist. Best, Dr. Emer

An off-label use of Botox in the jaw is a nice non-surgical option to make the jaw fuller. This will slim the masseter muscle over the actual jaw bone and gives the overall symmetric appearance.

We all have some degree of facial asymmetry.  Botox is commonly used to help slim the masseter muscles with consequent slimming of the jawline.  In addition, Ultherapy can be helpful by lifting and tightening the lower face.  Consult with an experienced and board-certified cosmetic physician.

It would be best to have a consultation to determine what would be the appropriate treatment.  If you have a photo that would be helpful as well.  Botox can be used if the fullness is towards the angle of the jaw or closer to your ear.  If the fullness is more towards the front of your face, thread lift may be helpful to tighten and tone that area.  
Hope this helps,
Nancy Kim, MD

It is best to have an in-office examination to evaluate your jawline. Improving the symmetry of your jawline depends on the underlying bone and the muscle, skin, and fat on top. If your jaw is small in general, using filler to augment the appearance of the bone can increase definition. If you have good structure but bulky muscles, these muscles can be thinned with Botox injections, particularly in the back of the jaw. Loose skin can be treated with energy devices such as Ultherapy. Fat can be treated with liposuction or Kybella. Kybella in the jawline area is considered off-label. Kybella in general takes at least 2 or more treatments to see full effect and can initially make the area appear more puffy from swelling and inflammation. Hope this helps!!!

Although we don't always realze it no one is symmetrical and it is not at all unusual for this to be the case as one side is smaller than the other/. Botox may be able to  be injected correctly into the larger side to even them out. Be sure to see a board certified dermatologist

It depends on where the fullness is.  If it near the angle of the jaw, Botox can help to achieve symmetry.  Seek out a consultation from a board-certified surgeon.  Best wishes.