How much is masseter Botox in Korea depends on three choices the doctor makes at your jaw: which toxin product goes in, how many units each muscle receives, and how the dose is placed. Most menus show one jaw line for both sides, priced before VAT, with 10% VAT added at payment. That line assumes two similar muscles and a standard dose. If one side is thicker, the dose may be split unevenly and the extra units billed. Asking for the product, units per side and entry points turns a menu figure into a quote you can compare.
Guide
Product, units, placement: the three lines behind one menu figure
A jaw menu line reads as one package but bundles three decisions. The product sets the cost per unit, and Korean menus list imported originals, a purified imported toxin and several Korean-made toxins separately. The unit count sets how much is used. The placement sets how many entry points the doctor makes and how deep the needle goes.
Two clinics can print a similar figure while one assumes a modest dose with a Korean-made product and the other a fuller dose with an imported one. So the masseter Botox Korea price on a menu is a starting point: a fair comparison keeps product and units fixed and lets only the clinic change.
| Line on the quote | What it controls | Question to ask |
|---|---|---|
| Toxin product | Cost per unit and how the dose converts between brands | Which product, and will I see the vial opened? |
| Units per side | Strength of the relaxation and how long it holds | How many units go into the left and the right muscle? |
| Entry points and depth | Spread inside the muscle and risk of touching nearby muscles | How many points, and how deep in the muscle? |
Guide
Why an uneven jaw can change the figure
Asking how much is jaw Botox in Korea gets a different answer when one jaw angle sits wider than the other, often the side you chew on. Doctors may give the larger muscle more units. Clinics that price by total units show the extra dose on the bill; others keep one fixed jaw price whatever the split.
A 2015 case report by Bhattacharjee and colleagues in the Indian Journal of Plastic Surgery illustrates this. Ultrasound showed the left masseter thicker than the right, and the patient received 15 units on the right and 25 on the left over five points per side. Six months later both muscles were thinner, the larger one by more, and the contour still held at 24 months. One case proves nothing general, but a split dose is a clinical choice.
Guide
Does a different injection technique cost more?
Technique is the line visitors rarely ask about. The common approach places small amounts at several points across the lower muscle. Qian and colleagues, in a 2026 retrospective study of 239 patients in Aesthetic Plastic Surgery, describe a single entry that fans the dose through the deep, lower masseter. Facial width fell at all three measured levels, most at the mouth-corner level, and two patients had a temporary bulge that settled on its own.
The technique rarely appears as a priced item. It changes how the dose spreads, how likely a bulge or smile change is, and whether a top-up follows. The study was retrospective with no comparison group, so it supports asking how the dose is placed, not paying more for a named method.
Guide
Questions to settle by message before the island leg
Jeju visitors often have only a few free afternoons, so a written answer to these questions before arrival keeps the consultation short.
- Is the jaw line priced for both sides, and by package or by total units?
- Which products are stocked for the jaw, and is the brand named on the receipt?
- If one side needs more units, is that charged separately?
- Is the two-week review included, and what happens if you have already left Jeju by then?
- Is 10% VAT added at payment on top of the listed figure?
Guide
When a lower jaw quote is worth questioning
A figure well under others nearby can mean a Korean-made product, a smaller dose or a different technique, all reasonable. Ask again when the clinic will not name the product, state units per side or say who injects. Skipping assessment is also a warning sign: width from bone or the parotid gland will not narrow with toxin.
Common effects are tenderness, mild chewing fatigue and small bruises. Less often, a bulge appears when the muscle relaxes unevenly, or the smile shifts if toxin reaches a nearby muscle. Pregnancy and neuromuscular conditions are reasons to wait.
Evidence
Research behind this page
- Extended effect after a single dose of type A botulinum toxin for asymmetric masseter muscle hypertrophyIndian Journal of Plastic Surgery · 2015 · doi:10.4103/0970-0358.163061
A case of uneven masseter enlargement treated with a larger dose on the thicker side, with the contour maintained at 24 months.
- Fanning Deep Injection of Botulinum Toxin Type-A for Masseter Hypertrophy: A Retrospective Study of 239 PatientsAesthetic Plastic Surgery · 2026 · doi:10.1007/s00266-026-06223-1
In 239 patients, a single-entry fan-shaped deep injection narrowed the lower face, with temporary bulging in two patients.
FAQ
Questions about Botox in Jeju
What does a jaw quote look like if only one side is wide?
One wide side is usually still treated on both sides, with more units on the larger muscle. If the clinic bills by total units, the heavier side adds to the total; if it bills a fixed jaw package, the split may cost nothing extra. Ask which applies before the injection, and check how each clinic on this page words its jaw line.
Is the masseter Botox cost in Korea higher for a deep, single-entry technique?
Usually not, because clinics price the product and the dose rather than the injection pattern. A deep fanning approach and a multi-point approach can use the same product and units; what differs is spread inside the muscle and the chance of side effects. If a clinic charges more for a named technique, ask what changes in the dose and the review plan.
Is the two-week review part of a jaw package price?
It varies, so ask before you pay. Many clinics invite you back around two weeks later to check symmetry, and some include a small top-up if one side relaxed less, while others bill extra units at their usual rate. On a short Jeju stay the review may fall after you fly, so ask whether photos sent from home can be assessed and what a later top-up would cost.
Can I chew normally after the injections on the day I have them?
Yes, normal meals are fine the same day, though hard or very chewy food can feel tiring for a few weeks. The muscle weakens gradually, so any effect on chewing appears days later rather than at once. Avoid pressing or massaging the jaw for the rest of the day, and mention any clear biting weakness to the doctor at the review visit.
Who should not book masseter injections during a trip?
People who are pregnant or breastfeeding, or who have a neuromuscular condition, should not have jaw toxin, and an infection on the jaw is a reason to wait. Width that comes mainly from bone, fat or a swollen salivary gland will change little, so assessment comes before any price is agreed. Mention blood thinners, as they raise the chance of bruising.