Would fillers to define or masseter slimming be better for my long/flat face and large jaw? (Photos)

This will depend on your desired results. Botox can be used to slim the masseter. Results will resolve in 3-4 months. I recommend getting a formal evaluation with a cosmetic dermatologist. Best, Dr. Emer

Dear 3iea0m9A2l1,
Thank you for your question. It is difficult to make an accurate assessment and recommendations based on photographs alone. I recommend you discuss your concerns with your injecting provider who can perform a thorough examination and recommend the best treatment options to address your goals. Filler to the cheeks may help boost that area and help make the lower face appear narrower/more tapered. If that is not beneficial enough, you could consider neurotoxin to the masseters to help narrow the lower face. 

Hi,Based on the photos you provided, you have a recessed chin. A chin augmentation will be the most beneficial procedure to add balance to your facial features. This can be done both surgically and non-surgically. In my practice, we take 3D photos and can use computer morphing to preview what you can expect to look like after the augmentation. While you mentioned non-surgical only, if you pursue corrective surgery a permanent chin implant will be the best long-term solution. Best,

Hey there - thanks for the question!
I think you would get a good result from masseter botox injections. They help with slimming down of a more square jaw line, as well as the bonus of stopping tooth grinding at night.
Results will usually start to appear within about 2 months whereas tooth grinding will take 7 days to settle down.

Hello,
Looking at your pictures, I don't see any thing out of proportion regarding your eyes or lateral jaw. Your features are unique to you! If you were to have any type of filler placed i would only recommend one area, that is the chin. Looking at your side profile, if the chin was brought forward (not elongated) to be in line with your lower lip, you would not need anything else! Injecting in the masseters can be beneficial for this like teeth grinding and jaw slimming, however it can make the face look older if the skin moves from the area into the jowls (aka jowling). Hope this helps.
Regards,
Sophia RN

Dear 3iea,
Thanks for your question.
Botox jaw slimming is a commonly performed procedure in Asia.
If your masseters are bulky, then you will benefit from this treatment. Results peak in 4 weeks and lasts 4 months. I recommend seeing an Aesthetic Dermatologist for an in-person consult. 
Hope this helps and Merry Christmas!!
Dr Daniel Chang

Fillers basically help you to give you a youthful look and make you look more presentable. Suggesting anything just on the based of the image would not be possible. You can visit Artius Clinic at Kharghar and get consulted. 

You are being way too hard on yourself!  I don't think your eyes are too close together at all.  Your face fits the "rule" of vertical 5ths, the space between your eyes is about the width of your eye, and you have an eye width from the edge of the face to the eye on each side.  The only thing that is off, slightly, is the rule of horizontal thirds.  That bottom third (from base of nose to chin) need a little lengthening.  That is a pretty straightforward fix with injectable filler.  In the states we can use Bellafill, which a filler that lasts 5 to 10 years and probably even longer than that.  I would add more anterior projection of your chin and leave your jawline alone.  It is smooth and nicely defined.  I personally think the masseters add some definition and volume to your lower face so I would not use botox.
I love the idea of a little fill to your cheeks, just to highlight what you already have.  If you really want to make your eyes look more set apart a little filler at the top of the nose can create the illusion of wider set eyes. I don't think you need it though.
BTW--you have gorgeous lips!  
Hope this is helpful info.  Best of luck to you,
Dr.Amy

I would consider filler for the cheeks and Botox/Dysport for the masseters to enhance the shape of your face. I would also consider chin filler to improve chin projection and volume. 

I would start with Botox of Masseter (or Xeomin/Dysport) and filler of tear troughs plus PRP. I like Volbella or Belotero for tear troughs