What causes it
The jawline softens with age as bone resorbs, fat descends, and skin loses elasticity. Genetics also strongly influence jaw shape — some patients have never had a defined jaw and want to create one.
Best approaches
Jaw filler (Radiesse, Juvederm Volux) creates structure and definition along the mandible. Botox in the masseter (jaw muscle) can slim a wide or square lower face. Kybella removes submental fat. For laxity, RF Microneedling, Sectum skin tightening, or other skin tightening devices firm the overlying skin.
How we treat jawline definition
What else can we help with?
FAQ: Jawline Definition
Can I get a sharper jaw without surgery?
Yes, with filler and potentially Kybella for submental fat. The results are not as permanent or dramatic as surgical options, but they're significant — and reversible if your preferences change.
What is masseter Botox?
Injecting Botox into the masseter (chewing muscle) reduces its size over 4–6 weeks, slimming a wide or square lower face and creating a more tapered, elegant jaw shape.
Not sure where to start?
Book a complimentary consultation.
We'll assess your concerns, explain your options, and build a treatment plan around your goals and timeline — at no cost.
Devenir Aesthetics treats jawline definition for patients in Northwest Austin, Northwest Hills, Far West Austin, Arboretum area, Great Hills, Bee Cave, Westlake, and Cedar Park. Located at 3807 Spicewood Springs Road, Suite 201, Austin, TX 78759. Call (512) 477-3778.