Slimming wide face on a male? Do you think botox to the masseter muscle can help? (Photo)

Using Botox to relax the masseter
muscle can slim the face. Fillers in the chin might help. Please see an expert. Best, Dr. Emer

You've got most of your facial features redacted in your photograph - but in general, bi-mandibular facial width can be reduced with Botox to the masseter muscle - I do this frequently for Asian patients - we usually use about 40-50 units per side and patients see nice results several weeks post injection. 

Your jawline is masculine and you don't seem to have hypertrophic masseter muscles.  You would need to see a board certified plastic surgeon for a proper assessment.

Based on the photo you provided, it does not appear to me that you have enlarged masseter muscles that would be causing your face to be widened, so I would not recommend Botox in that area for you.  An exam would be helpful to give you the best advice in regards to your jawline, but just based on the one photo, your jawline looks pretty good to me.  

Thank you for your question! Botox to the masseter muscles is a great non-surgical procedure for facial slimming. Injecting Botox into the muscle weakens it, and over time while the muscle is weaker it atrophies (decreases in size), providing the slimming effect. Botox treatments will affect your masseter muscles, but not your mandible (jaw bone). Jaw shaving is a procedure that reduces the size and shape of your actual bone. As Botox is a temporary treatment, I recommend receiving Botox treatments first in order to see if you like the results before considering surgical options. It is important to see an experienced injector to help determine if Botox treatments would be right for you.
I've created a video that reviews treating masseter muscles with Botox, I hope you find this helpful in your research! 

If you feel that your face is too wide, Botox injections to the masseter muscle may relax them sufficiently to let you see what you would look like with a slimmer face. If you are happy with the result, you can consult with a facial plastic surgeon about bone shaving. However, you may be satisfied enough with the nonsurgical slimming to simply maintain the Botox. Please be sure to find a board-certified dermatologist who has expertise in injecting the masseter muscle for facial slimming.

From your photo, it does seem that you would benefit from Botox injections in the masseter muscles. This will allow the muscles to relax, giving your face a slightly slimmer look. It should not make you look feminine. I would try this first before moving to surgery, to make sure you are happy with your new look. Please consult a board-certified dermatologist with expertise in Botox injection.

I have had good results using Botox to slim the jaws of patients who have over-developed masseter muscles. It's a simple, relatively non-invasive procedure that can very effectively give you a sleeker looking jaw and face. Like my colleagues, I would recommend a nonsurgical Botox slimming before moving onto an irreversible step like surgery. Please find a board-certified dermatologist who is experienced in using Botox for relaxing the masseter muscle.

Botox is a great option to slim your posterior jawline if you are concerned that it is too wide. The injection is done in the masseter muscle to reduce its size over several weeks. Jaw shaving surgeries are more intensive, permanant, with greater risks. It can be done, but it is often done to feminize a face which may not be what you want. It is best to have an in-office examination to evaluate your natural features and determine the best treatment plan to get the look you would like. Even with less masseter muscle volume, you may not get a more defined jawline if you have thick or fatty tissue overlying the bone. There are several options for both your jawline and ears to maintain a natural and masculine appearance. Hope this helps!Johnson C. Lee, MD Plastic Surgery

A wide well defined jaw and chin says testosterone. Think Brad Pitt or Bradley Cooper. To say you want to narrow your jaw but don't want to feminize is a contradiction. If you mean you want more definition then consider liposuction or a buccal fat pad procedure.