Quick answer: Jawline Botox cost in Korea depends on the size and strength of your masseter muscles, the number of units, the toxin brand and how many repeat sessions you plan. Jaw Botox relaxes the chewing muscles to slim a square lower face over several weeks. A doctor assessment shows how many units each side really needs.
Key takeaways
- Jaw Botox targets the masseter, the main chewing muscle at the angle of the jaw.
- It slims the lower face gradually, with the full effect after several weeks.
- Larger muscles usually need more units, which affects the cost.
- Repeat sessions often give longer-lasting slimming.
- It can also help with teeth clenching and jaw tension.
What is jawline Botox?
Jawline Botox, also called masseter Botox or square jaw Botox, is an injection of botulinum toxin into the masseter muscles on each side of the jaw. When these muscles are large from chewing or clenching, the lower face can look wide or square. Relaxing the muscle makes it gradually shrink, which creates a softer, slimmer, more V-shaped lower face. It is one of the most popular non-surgical face-slimming treatments in Korea.
Who is a good candidate?
Jaw Botox works best for people whose lower face looks wide because of muscle rather than bone or fat. A simple test is to clench your teeth: if a firm bulge appears at the angle of your jaw, muscle may be part of the reason. People who clench or grind their teeth also often benefit. If fat or sagging is the main cause, other treatments may work better.
What factors affect jawline Botox cost?
- Muscle size: larger or stronger masseters usually need more units.
- Number of units: the dose per side affects both result and cost.
- Toxin brand: imported and Korean-made toxins are priced differently.
- Repeat sessions: many people plan two or three sessions in the first year.
- Combined areas: adding Botox for the chin, neck bands or shoulders changes the plan.
- Who injects: correct depth and placement help avoid an uneven smile or hollowing.
How many units are usually needed?
The number of units varies from person to person. A small muscle may need fewer units, while a large, strong muscle may need more on each side. Your doctor will feel the muscle while you clench and plan the dose accordingly. Asking how many units per side are included in your quote helps you compare clinics fairly, because a lower quote may simply mean fewer units.
When will I see results?
Unlike wrinkle Botox, jaw slimming takes time. The muscle feels weaker within one to two weeks, but the visible slimming usually appears after four to six weeks as the muscle shrinks. The full effect is often seen around two to three months. If you are visiting Korea briefly, you will likely see the final result after you return home.
How long does jaw Botox last?
Results usually last about four to six months after a first session. With repeated treatments, the muscle may stay smaller for longer, and some people need sessions less often over time. Many doctors suggest a second session around four to six months after the first to build a stronger result.
Can jaw Botox help with clenching?
Yes. By relaxing the masseter, Botox can reduce clenching and grinding, ease jaw tension and lessen tension-related discomfort. Many people notice better comfort as well as a slimmer face. Your doctor may also check for related tension in the temples.
What is the downtime?
There is little downtime. Small bumps or tiny bruises may appear at the injection sites. Chewing may feel slightly weaker for a few weeks, especially with hard or chewy foods. Avoid massaging the jaw and intense exercise for a few hours after treatment.
What are the possible side effects?
Side effects are usually mild. They may include temporary chewing weakness, slight unevenness, or, if placement is incorrect, an altered smile. Rarely, very high doses over time can make the cheeks look slightly hollow. Careful dosing by an experienced doctor reduces these risks.
How to compare jaw Botox quotes in Korea
Korea treated about 2.01 million foreign patients in 2025, and around 63% came for dermatology, according to the Ministry of Health and Welfare. Jaw slimming is one of the most requested treatments. Ask about the brand, units per side, whether a follow-up is included and how often repeat sessions are recommended.
Frequently asked questions
Will jaw Botox change how I chew?
Chewing may feel weaker for a few weeks, but normal eating continues.
Can jaw Botox replace jaw surgery?
No. Botox slims muscle, while surgery reshapes bone.
How often should I repeat it?
Many people repeat it every four to six months at first, then less often.
Can I combine it with a V-line lift?
Yes. Many people combine jaw Botox with lifting or fat reduction for a fuller V-line result.
Sources
- Ministry of Health and Welfare, Republic of Korea – 2025 foreign patient statistics (press release, 2026).
- Ministry of Food and Drug Safety, Republic of Korea – botulinum toxin product approval information.
- U.S. Food and Drug Administration – Botox prescribing information.
This article is for general information only and is not medical advice. Prices vary between clinics and individuals. Please consult a qualified physician before any treatment.
