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How Much Is Masseter Botox in Korea? What Decides the Cost

Dr. Jong Seon Kim6 min read
How Much Is Masseter Botox in Korea? What Decides the Cost

I'm Dr. Jong Seon Kim, a plastic surgeon at Gangnam HERA in Seoul and a board member of the International Petit Medical Society, and most of my clinical day is spent on fillers and injectables. Jaw slimming is one of the treatments international patients plan a Seoul trip around, and the question usually arrives with a front-facing photo: "How much is masseter botox in Korea — and how many times will I need it?" I won't print a price here, because the honest figure depends on your muscle: how large and strong it is, whether both sides match, which product we use and how many sessions you plan. What I will do is examine the muscle, tell you whether botox is even the right tool for your jaw, and give you an itemised written estimate before anything begins. International and local patients pay exactly the same.

Why isn't there a masseter botox price on this page?

Because the dose is decided by your muscle, and the dose is what the price follows. A slim face with a mildly active jaw and a broad face with a powerful chewing muscle both ask for "jaw botox", but they do not need the same amount. A number published before I have felt the muscle would be either too high for one of them or too low for the other.

The same applies to comparisons. Units are not directly interchangeable between toxin brands, so a "per unit" figure from one clinic cannot be laid next to another clinic's figure for a different product. I explain the general picture in how much botox costs in Korea; this page is about the jaw specifically.

Botox being performed at HERA Clinic in Gangnam, Seoul
Botox at HERA — performed by a licensed physician in our Gangnam clinic. Illustrative procedure photo, not a patient result.

What decides the cost of masseter botox?

Muscle size and strength, symmetry, the product and the number of sessions you plan.

  • Muscle size and strength. I ask you to clench and feel the muscle on each side. A larger, harder muscle needs a larger dose.
  • Symmetry. Many people chew more on one side, so one masseter is bigger. The two sides are often dosed differently, and that is on the estimate.
  • The product. All four toxins we use — Allergan Botox, Xeomin, Coretox and Newlux — list jaw slimming as an area. Korean-made products are generally the more accessible line.
  • How many sessions. The slimming effect builds over time with regular treatment, so most people plan a series rather than a single visit.
  • Other areas in the same visit. Some patients add the shoulder line (trapezius); each area is listed separately.

Is masseter botox the right treatment for your jaw?

Only if the width comes from muscle — and it is worth knowing that before you spend anything. The masseter is the chewing muscle at the angle of the jaw. When it is enlarged, the lower face looks square, and relaxing it lets the muscle reduce in bulk.

If the fullness is mostly fat, toxin will not change it; a fat-dissolving approach such as Sok-Sok Face Injection for the jawline is the more logical tool. If the width is bone, no injection will change it. If the problem is loose skin along the jaw, that is a lifting question. Our guide to botox for the jawline shows how I tell these apart in the chair, and I will tell you plainly if botox is the wrong answer — even if that means there is nothing to quote.

How many masseter botox sessions should you budget for?

Plan for repeat sessions, because the effect generally lasts about 3~4 months and the slimming builds with regular treatment. The muscle-relaxing effect usually begins within 3~7 days, and the full relaxation is visible at around two weeks. The visible slimming of the face follows more slowly, because a muscle that is used less reduces in bulk over weeks.

Retreatment is usually every 3~4 months while you are building the result. I will not promise a fixed number of sessions, because muscles respond differently. Results vary from person to person. Our masseter botox before and after guide sets out a realistic timeline, and it is the most useful way to judge whether the budget is worth it for you.

Treatment room at HERA Clinic in Gangnam, Seoul
HERA's treatment rooms in Gangnam, Seoul.

Which product is used for masseter botox at HERA?

Any of our four toxins can slim the masseter; the choice depends on how often you will repeat it and your previous history. Allergan Botox is the original and most-studied brand. Xeomin and Coretox are complexing-protein-free, which is associated with a lower theoretical risk of resistance — a reasonable consideration for a muscle treated regularly. Newlux is a Korean option positioned for value.

Because the jaw is treated repeatedly, the product choice matters more to the total over a year than it does for a single forehead session. I have written a fuller comparison of Korean botox and American botox if you want to understand the trade-offs before we talk.

What does a masseter botox visit include?

A doctor's examination, marking, the injection by the doctor, cooling and aftercare guidance — usually about 5~10 minutes of treatment. I check the muscle with you clenching and relaxed, mark the injection points within the muscle, inject with a fine needle and cool the area.

Downtime is minimal. For a few hours afterwards, avoid rubbing or massaging the jaw, lying down and heat such as saunas or hard exercise. Toxin is not suitable during pregnancy or breastfeeding, or with neuromuscular disorders, so please share your medical history. Most unwanted outcomes — an uneven smile, a hollow under the cheekbone — come from placement and dose rather than the product, and our masseter botox gone wrong guide explains how they are avoided.

What patients ask me next

"Can I do it on a short trip?"

Yes — the treatment itself is quick. The slimming appears weeks later, after you are home, so photograph your jaw before treatment to compare fairly.

"Can I combine it with other treatments?"

Often, yes. Some patients add skin botox along the jawline and lower face for texture; Korean skin botox before and after explains what that adds. Others want underarm sweating treated in the same visit — see hyperhidrosis treatment in South Korea.

"What if I stop?"

The muscle gradually regains its activity and bulk, and the face returns towards how it was. Nothing is locked in.

HERA Clinic in Gangnam, Seoul
Same price for local and international patients, with on-site English interpretation.

The honest limits

Masseter botox slims muscle; it does not remove fat, reshape bone or tighten skin, and the effect is temporary by design. Some jaws respond more than others. What I can promise is that I will check whether your width is muscle before I suggest it, dose each side for what it needs, and write the price down before anything begins.

Book a consultation

If you would like a real estimate for your jaw, send a front photo and a photo while clenching your teeth. We will arrange a consultation in Gangnam, or a photo consultation first if you are still abroad. An English interpreter joins every visit, and you receive an itemised written estimate before anything begins — international and local patients pay exactly the same.

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FAQ

Frequently asked questions

  • Q1How much is masseter botox in Korea?
    It depends on the size and strength of your masseter muscle, whether the two sides need different doses, the product and how many sessions you plan. HERA gives an itemised written estimate after examination, and international and local patients pay the same.
  • Q2How many masseter botox sessions will I need?
    Most people plan a series, because the effect generally lasts about 3~4 months and the slimming builds with regular treatment; retreatment is usually every 3~4 months. The number of sessions varies from person to person.
  • Q3When will my jaw look slimmer after masseter botox?
    The muscle-relaxing effect usually begins within 3~7 days and is fully visible around two weeks, but the visible slimming follows more slowly as the muscle reduces in bulk over the following weeks.
  • Q4Which toxin does HERA use for masseter botox?
    Any of HERA's four toxins — Allergan Botox, Xeomin, Coretox or Newlux — can be used for jaw slimming. The choice depends on how often you will repeat it, your previous history and the price line you prefer.
  • Q5Will masseter botox work if my jaw is wide from fat?
    No; botox only reduces muscle bulk. Fat along the jawline is better suited to a fat-dissolving treatment, and width from bone will not change with any injection.

Yujin Kim

5 months ago

I recently visited Hera Gangnam for a more intensive lifting treatment, and I couldn't be happier with the experience. As someone who had only done basic toning and hair removal before, I was incredibly nervous about trying actual "lifting" lasers, but this clinic put me completely at ease. ​What sets Hera apart is their thoroughness. I had two separate consultations: ​Consultation Manager (상담실장님): She was incredibly kind and helped map out my concerns without being pushy. ​Head Doctor (원장님): He provided a deep dive into the technical side, ensuring I understood exactly how the treatments would work for my face shape. ​I focused on two specific areas to tackle my double chin and overall facial contour: ​10Thera Lifting: A game-changer! The procedure was much more comfortable than I expected. It does hurt a lot but apparently not as bad as Ulthera. The staff members and the doctor would check on me the whole time to make sure the treatment is not too awfully painful. ​Sok-Pae Injection (쏙빼주사): Targeted specifically at my double chin area. ​ ​The entire staff is knowledgeable, professional, and most importantly, they actually listen and care for my needs. I’m already seeing a difference (I might need two more sessions in a couple of months) and am definitely coming back for my forehead and jaw Botox next time! ​Highly recommended if you're a "lifting newbie" looking for a trustworthy clinic in Gangnam.

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Tamara Jovanovic

5 months ago

I recently visited Gangnam Hera Clinic for a Titanium Lifting treatment, and the entire experience genuinely exceeded my expectations. The staff were incredibly warm and welcoming, immediately putting me at ease the moment I walked in. They explained every part of the procedure clearly and thoroughly, making sure I knew exactly what would happen and how to prepare. Although I’d heard that lifting treatments can be uncomfortable, this one was surprisingly manageable. The doctor checked in with me constantly and even took short breaks to make sure I wasn’t feeling any pain, which I really appreciated. The whole process was smooth, well-organised, and very professional. I could tell they were attentive and meticulous from start to finish. The clinic itself is spotless, modern, and honestly one of the best I’ve visited in Seoul!

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Bella Isakowa

7 months ago

💖 Visit to Hera Gangnam Clinic: Absolutely Recommended! I visited the Hera Gangnam Clinic today and was pleasantly surprised by how friendly and accommodating everyone was—from the staff and doctors right up to the boss. I received excellent consultation because I wanted to get lip fillers, and achieving symmetry was especially important to me. The attending physician held a very detailed consultation with me and fulfilled all my wishes perfectly. I am super satisfied with my lips already and can hardly wait to see the final result once the swelling has gone down. I will definitely be back! I wholeheartedly recommend this clinic to all foreigners coming to Korea. The entire team speaks several languages, so you don't have to worry about not being understood.🙌🏻

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M K

7 months ago

I recently tried the Rejuran treatment at Gangnam Hera Clinic, and I honestly had such a great experience. Before starting, the doctor carefully explained everything to me and recommended the version of Rejuran that would suit my skin best. I had heard that this treatment can be quite painful, but honestly, it was completely manageable. The staff was incredibly warm and welcoming from start to finish. They checked on me throughout the process and made sure I felt comfortable the entire time. The follow-up was also really professional, and they made sure I understood how to take care of my skin afterwards. Overall, I really recommend Gangnam Hera Clinic if you’re thinking about getting Rejuran. It was a smooth, reassuring, and positive experience. ✨

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J Kim

8 months ago

This was my second time visiting Gangnam Hera after returning from the States, and once again, I’m so impressed. The staff are friendly, professional, and genuinely attentive. The clinic is exceptionally clean and modern, with a relaxing atmosphere that makes every visit comfortable. The prices are very reasonable, but what truly stands out is the quality of care and the amazing results. It’s a top-quality dermatology clinic that I would absolutely recommend to my friends and anyone looking for trusted, high end skincare in Korea.

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Hui Lim

5 months ago

My very first visit to Korea & head straight to HERA Gangnam for my first ever rejuran experience too! Thank you Dr. Lee Jong Hoon for his professionalism, is almost painless for me during the whole process & I almost fall asleep 😅 highly recommend! Their staffs were really nice too! Always check in on me if im feeling ok 🙏🏻 will def come back again

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Maria Ramelb

10 months ago

First time visiting the clinic after finding it in Google when I was looking for a clinic. I got botox procedure as per recommendation from the doctor. The consultation and the procedure was done professionally. Would definitely recommend it and will try to consider other procedures next time.

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Su Ann Chin

6 months ago

I did my ultherapy here and been here 3 times in 2 years. Definitely recommend this place as the doctors here are very experienced! Would continue to stick to this place as I’ve done my treatments with 4 of the doctors here and they were all experienced and gentle ☺️

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Your medical team

A Medical Team That Sees You Through, Start to Finish

Board-certified specialists who treat every patient like family — the same doctor guides you from your first consultation to your final result, aiming for natural beauty with minimal need for revision.

  • Jong Seon Kim, MD

    Jong Seon Kim, MD

    “I am a doctor you can trust, dedicated to enhancing your natural beauty.”

    Career & Credentials

    • Director, Gangnam HERA Plastic Surgery Clinic
    • Board Member, Korean Society of Aesthetic Surgery (KSAS)

    +9 more

  • Dr. Lee Jong Hoon

    Dr. Lee Jong Hoon

    “I dedicate myself to achieving the best results with minimal need for revision.”

    Career & Credentials

    • Co-author, LIFTINGOLOGY: Science and Clinical Practice in Aesthetic Medicine
    • Recipient, Minister of Health and Welfare Award for Outstanding Contribution to National Health Improvement

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