Key points:
- Masseter muscle bulk responds to muscle-relaxing injectables; bone structure does not respond to any non-surgical treatment
- Descending soft tissue creating jowls is a lifting problem, not a slimming problem
- Identifying which contributor dominates is what determines whether a treatment can work at all
The Four Contributors to Lower Face Width
Masseter muscle bulk — often from clenching or grinding. This is the contributor most responsive to non-surgical treatment.
Buccal fat — fat pads in the mid-to-lower cheek influencing facial contour.
Bone structure — mandibular width is fixed. No injectable or energy device alters bone.
Soft tissue descent — jowling from laxity, which widens the jawline silhouette without adding volume.
Why Honest Assessment Matters Here
Treating a bone-structure jawline with muscle-relaxing injections will not produce a result, regardless of dose. A proper assessment sometimes concludes that a non-surgical approach is not appropriate — which is more useful than proceeding with a treatment that cannot address the actual cause.
Treatments Used at IN Eternity Clinic
Where masseter bulk is the contributor, jaw slimming injections may be appropriate. Where descent is the issue, lifting approaches such as HIFU or RVR ProLift address a different problem entirely.
Frequently Asked Questions
It depends entirely on the contributor. Masseter bulk and some soft-tissue descent respond to non-surgical treatment; bone structure does not.
Muscle-relaxing treatment for the masseter is temporary, with effect typically sustained through repeat sessions rather than permanent.
No — it can be muscle, fat, bone, or descending tissue, and often a combination. This is established at assessment.