Contouring
Square Jaw (Masseter Hypertrophy)
A wide, square jaw often comes from enlarged masseter (chewing) muscles. Korean dermatologists slim the lower face with botulinum toxin injections into the masseter, which gradually relax and shrink the muscle.
Overview
Jaw botox is one of Korea's most popular treatments for a softer V-shaped face. It also helps people who clench or grind their teeth.
At a glance
Results
Visible slimming in four to eight weeks, lasting about four to six months.
Sessions
Repeated treatments may prolong results.
Risks
Temporary chewing fatigue; rare smile asymmetry with poor technique.
Frequently asked questions
Is jaw botox permanent?
No, but repeated sessions can keep the muscle smaller.
Can it help teeth grinding?
Yes, it often reduces clenching.
What if my jaw is bone, not muscle?
Toxin only shrinks muscle; a dermatologist can tell the difference by examination.
Related
Choose a specialist
See a board-certified dermatologist, not just a “skin clinic”
In Korea, only about 1 in 10 clinics that treat skin is run by a dermatology specialist (피부과 전문의). Specialists complete a four-year dermatology residency and a national exam. Our directory lists only clinics in the Association of Korean Dermatologists’ specialist search. This page is general information, not medical advice.