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Jaw Botox (Masseter)

Allergan Botox into a strong masseter for a slimmer, smoother jawline — units recorded per side.

3D Rendering

At a glance

Time
About 10 min
Numbing
Cooling if needed
Discomfort
1 / 5
Downtime
Back to normal the same day
Lasts
4–6 months
Interval
Set at consultation

Discomfort is rated after numbing (out of 5). Time, downtime and longevity vary with the treated area and the individual.

Also known as: masseter Botox, jaw reduction Botox, V-line Botox

Jaw Botox relaxes the masseter (chewing muscle) so its bulk reduces over weeks, slimming a square-looking lower face. It works when the width comes from muscle, not bone. We use Allergan and set units separately for each side.

Medically reviewed by IM JUNHYUNG, M.D. · Updated

How it works

How it works

01Muscle check

You clench so we can feel size and asymmetry.

02Spread injections

Several points within a safe zone.

03Volume change

Muscle reduces over weeks.

04Product & units

Allergan, units per side recorded.

Our principles

How we do it at Taut

01The treating doctor signs

You’ll know your doctor before treatment, and the doctor who treats you signs the record.

02Numbers in writing

Shots, units or volumes are recorded before treatment and checked with you after.

03Genuine, in front of you

Seals and lot numbers are checked with you before opening.

Who it’s for

Is it right for you?

Good fit if you have

  • Square jaw from strong chewing muscles
  • Lower face looks wide
  • Teeth clenching habit
  • Contouring alongside lifting

Not suitable if

  • Pregnancy or breastfeeding
  • Neuromuscular disease
  • Previous reaction to botulinum toxin
  • Wide jawbone (limited effect)

Details

Procedure details

Starts
2–4 weeks
Peak
6–8 weeks
Lasts
4–6 months

On the day

How the visit flows

  1. 01AssessWe check the cause and your schedule.
  2. 02PlanThe plan is written on your record.
  3. 03TreatThe doctor named on your plan treats you.
  4. 04Follow upRecord handed over; next steps noted.

Doctor’s note

Jaw Botox looks simple, but slightly off placement can change your smile. We take time to find the right spot.

Dr. IM JUNHYUNG · 任埈亨

Good to know

Aftercare & risks

  • Don’t lie down or rub the area for 4 hours.
  • Bruising or smile asymmetry can rarely occur.
  • Results and recovery vary by individual. All procedures carry possible side effects.
  • Contact us right away if anything feels unusual after treatment.

Questions

Jaw Botox (Masseter) FAQ

How many units?

Depends on muscle size; recorded per side.

When will I see it?

From 2–4 weeks, clearest at 6–8 weeks — likely after you’re home.

Will chewing feel weak?

Tough food may feel harder to chew for a few weeks.

Ask the doctor directly.

If something isn’t right for you, we’ll say so. No same-day decision required.

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