PATIENT QUESTION
How many units of Botox for the jaw?
SHORT ANSWER
Jaw slimming typically uses about 20–50 units per side, depending on masseter size and the toxin brand. Dr. Yang decides the dose by feeling the muscle while you clench.
Dr. Yang Jung-hwa, MD — board-certified dermatologist, Seoul National University
The detail
Unit equivalence differs between brands, so compare doses within the same brand only.
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November 2026
General information only, not a diagnosis. Individual advice is given at consultation.
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