Masseter Botox Before and After in Santa Ana, South Coast Metro
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Do you clench your teeth or feel your jaw looks square in photos? Masseter Botox before and after images show how a few gentle injections can slim the lower face and soothe tension. At Calista Aesthetics in Santa Ana, our medical team uses precise dosing to relax overworked chewing muscles, ease TMJ pain, and soften your jawline, often in under 20 minutes.
If you’re near Costa Mesa or Irvine, our Santa Ana location is easy to reach.
1–3 days: Tightness eases; chewing feels lighter.
1 week: TMJ pain declines; clenching less frequent.
2 weeks: Visible contour changes start—jaw corners look softer.
4–6 weeks: Peak slimming effect; selfies show a slimmer V-shape.
3–4 months: Gradual return of movement; schedule your next visit to maintain shape.
By calming the masseter, Botox reduces the grinding force that inflames the joint. Most clients report:


Relaxing the masseter should not weaken everyday chewing. You may feel slightly “softer” bites for a week while your brain adapts. Most people find eating easier overall because jaw tension, and the pain it brings, fades quickly. A study in the Journal of Oral Rehabilitation confirms Botox can cut bite force by about 20 percent, enough for relief, not enough to impair function.