How to Minimize Rectangular/square Face or Strong Jaw Bone?

Hi I have a very strong jaw bone, they make my face look square/rectangle. They are so strong that it makes me look hollow in the cheek. are there ways I could minimize these strong jaw? And make my face shape more like heart shape instead of square? I have an angular face with very strong jaw bone. I have heard that botox can minimize this. Does disport work the same? Or are there other better treatments? I have also heard that message that area to clear the lymph nodes would help? Thank you !

Doctor Answers 8

Botox and Dysport for jaw slimming

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Thank you for your question. Botox or Dysport can be a very effective way to contour the jaw line by reducing the masseter shadow through the outer jaw skin. In addition, it can reduce symptoms of jaw clenching or grinding of teeth at night time. This is an advanced technique that requires a strong understanding of the underlying anatomy. Some side effects can results in some very unintented effects. This can include affecting the smile due to diffusion of the Botox into neighboring smile muscles. Over treatment can also overweaken your jaw muscles making it harder to chew food and causes your jaw muscles to relax too much when you sleep.

The injection technique does vary by physical exam and the goals of the treatment. I ask my patients to place their hands along the sides of their face over their masseter muscles and clench on/off so they can feel the masseter muscles bouncing against their hands. I also ask them to repeat this at home in a couple weeks time to compare so they can see the effects of the masseter reduction.  This also allows them to distinguish whether the square face is due to the jaw bone or also the masseter muscles.

Facial contouring goals may change the injection sites themselves to affect different portions of the masseter as well as the dose. The strength of the masseters can be felt by palpation and also helps me to determine dosing. In general, I start with 15- 25 units of Botox (OR 50-75 units of Dysport) per side for most patients. If they have very strong masseters, then I may increase the dose, but more commonly ask them to return in three weeks for a touch up. Once you get the desired result, I let patients know that future treatments may require less to maintain the look or the jaw clenching symptoms, especially if they get treated as soon as they notice the symptoms return. This can be as soon as three to four months, but in some cases, patients report that it lasts six months or more. I find it depends on the dose we use and how many times we have done the procedure as the duration may lengthen for patients that repeat it regularly.

Botox may help

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Botox is injected directly into the jaw muscle, known as the masseter, to relax it, softening your jawline and giving you a thinner appearance.

However, this is only effective if your jaw is affected by prominent masseter muscles. If the aesthetic concern is caused by the actual bone, then Botox will not help. Please see an experienced and certified medical injector for a physical examination to obtain a better assessment of your concern.

Botox can help an overly prominent jawline

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I have used Botox many times to treat an overly prominent jawline in women. It is not uncommon in Asian faces for the face to be more square in shape, and many women prefer, as you say, a more heart-shaped face.  

One can inject the same muscles as well as the muscles of the temples in patients who grind their teeth. These patients can have severe chronic headaches and a painful jaw, as well as problems with their teeth. The muscles of their jaw and temples enlarge.  Some don't respond to teeth guards. Botox helps them to relax the involved muscles a bit so that their symptoms are relieved.

Dysport should have a similar effect.

Sheryl D. Clark, MD
New York Dermatologist
4.7 out of 5 stars 10 reviews

How to Minimize Rectangular/square Face or Strong Jaw Bone?

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 This is only an issue in a female face, since male faces appear more attractive with increased angularity.  In a female face, a string chin/jawline must be compensated with full, round and aesthetically shaped cheeks as this is the beauty "trigger" in the face.  Before using Botox to decrease the Masseter, try cheek augmentation with a filler (I prefer per lane) or cheek implants.

Francis R. Palmer, III, MD
Beverly Hills Facial Plastic Surgeon
4.7 out of 5 stars 28 reviews

Slimming the face with Botox

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Yes, plastic surgeons have used Botox and Dysport to help slim the face. While commonly used to reduce wrinkles, Botox and similar treatments can also help reduce excess facial volume. Results gradually develop over several weeks, so don't expect immediate results. Other patients may require surgery to remove fat or bone. Only after a comprehensive evaluation can a plastic surgeon help determine appropriate options for you. Best of luck.

Dr. Chabnoki


Houtan Chaboki, MD
Washington DC Facial Plastic Surgeon
4.9 out of 5 stars 89 reviews

Jawl Line Injections

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the best treatment to replace volume loss will be a filler like Radiesse, fat grafting or even facial implants.

Jhonny Salomon, MD
Miami Plastic Surgeon

Masseter injection with either Botox or Dysport can feminize the face and create a more "upside down" egg shaped face

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Women that have large masseters, either genetically (asians frequently) or from bruxism, can make them smaller by injecting Botox or Dysport.  This can take up to 40 units per side of Botox.  I have seen very real changes from this injection.  This is the best treatment for this problem and I would not massage the area or try anything else.  The result is a slimmer lower face and a larger upper face (upside down egg).

Steven F. Weiner, MD
Panama City Facial Plastic Surgeon
4.9 out of 5 stars 75 reviews

Botox for Jaw Line

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Botox can work well for some people when the rectangular jaw appearance is due to enlargement of the muscles. By relaxing the muscles, you can give the jawline a softer, more naturally curved appearance. When the loss of the natural jawline is because of volume loss along with the effects of gravity, then fillers such as juvederm or ultherapy can be a good treatment for this.

Michael A. Zadeh, MD, FACS
Sherman Oaks General Surgeon
5.0 out of 5 stars 10 reviews

These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.