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!