Jaw Botox shrinks a bulky chewing muscle; InMode uses radiofrequency to contour small fat pockets and tighten skin. Here is how to tell which one your lower face needs before you book in Seoul.
Jaw Botox and InMode slim the lower face by working on different tissues. Jaw Botox relaxes the masseter muscle, so it suits a square jaw caused by muscle bulk. InMode combines Forma radiofrequency to tighten skin with Mini FX to contour small pockets of fat under the chin and along the jowls, so it suits soft fullness and mild laxity. Many people benefit from both. At Dernia Clinic Myeongdong in Seoul, jaw Botox starts from ₩59,000 for both sides and InMode from ₩129,000 per session for one area (KRW, excluding 10% VAT).
Prices are in Korean won, exclude 10% VAT and are confirmed by a doctor at consultation.
Jaw Botox vs InMode: which one do you need?
Choose jaw Botox when the width of your lower face comes from a thick masseter muscle. Choose InMode when the lower face looks soft or heavy because of small fat pockets under the chin and along the jowls, often with a little skin laxity. If both are present, the two treatments can be combined because they work on completely different layers.
The quickest way to know is an in-person examination. A doctor feels the jaw while you clench, looks at your profile and checks how the skin behaves when you look down. A firm bulge that pops out at the jaw corner when you bite suggests muscle. Soft tissue that gathers under the chin when you tilt your head down suggests fat, and skin that drapes rather than snaps back suggests laxity.
It also helps to think about what you want to see in the mirror. Jaw Botox changes the front view most, narrowing the widest part of the lower face. InMode tends to change the side and three-quarter view most, sharpening the angle between the jaw and the neck.
What is jaw Botox and how does it reduce muscle?
Jaw Botox places botulinum toxin into the masseter, the chewing muscle at the angle of the jaw. As the muscle relaxes, it becomes less bulky over the following weeks, and a square outline softens into a slimmer, more tapered shape.
- Treatment time: about 10 minutes, no numbing usually needed.
- Results: slimming builds over 2–4 weeks and lasts about 4–6 months.
- Extra benefit: people who clench or grind often notice less jaw tension.
See the jaw Botox treatment page for full details.
What is InMode Forma and Mini FX?
InMode lifting combines two radiofrequency (RF) applicators. Forma gently heats the skin to tighten it and support collagen, while Mini FX is designed to contour small pockets of fat under the chin and along the jawline. There are no injections and no needles, and most people describe the sensation as a warm massage.
- Treatment time: roughly 20–40 minutes depending on areas.
- Results: skin feels firmer quickly, while contour change builds over a series.
- Sessions: usually a series of about 3–5, then maintenance every 1–3 months.
Read more on the InMode Forma and Mini FX page.
Muscle reduction vs fat contouring: side-by-side
| Jaw Botox | InMode Forma + Mini FX | |
|---|---|---|
| Main target | Masseter muscle | Fat pockets and skin laxity |
| Best for | Square jaw from muscle | Soft double chin, mild jowls |
| Method | Botulinum toxin injection | Radiofrequency heating |
| Downtime | None | None to mild redness or swelling |
| Sessions | One, repeat every 4–6 months | Series of 3–5, then maintenance |
| When you see change | 2–4 weeks | Gradually across the series |
Who is a good candidate for each treatment?
Usually a good fit
- Jaw Botox: a firm bulge at the jaw corner when you clench
- InMode: soft fullness under the chin or along the jowls
- InMode: early skin looseness along the jawline
- Both: a square jaw plus a soft under-chin area
Talk to the doctor first
- Pregnancy or breastfeeding
- Pacemakers or metal implants in the area (for InMode)
- Neuromuscular conditions (for Botox)
- Heavy sagging or a wide face from bone structure
If your main concern is under the chin, see double chin treatments; if it is the jaw corners, see square jaw options.
Can you combine jaw Botox and InMode?
Yes. Because jaw Botox works on muscle and InMode works on fat and skin, combining them can narrow the jaw corners while sharpening the jaw-to-neck line. Many doctors perform InMode first and Botox afterward on the same day, so the device is not used over freshly injected muscle. Your doctor sets the order and spacing for you.
Our V-Line Contour Package is built around this idea. If you also want deeper lifting, compare devices in Shurink Universe vs InMode.
Results timeline: when does the face look slimmer?
The two treatments follow different timelines, which matters if you are planning around a trip or an event.
| When | Jaw Botox | InMode Forma + Mini FX |
|---|---|---|
| Day 0 | No visible change; tiny injection marks | Warm, slightly flushed skin that may feel firmer |
| Week 1 | Chewing may feel slightly weaker | Redness gone; skin feels smoother |
| Weeks 2–4 | Jaw corners start to look narrower | Gradual contour change if sessions continue |
| Months 2–3 | Peak slimming effect | Best contour after a full series |
| Months 4–6 | Muscle slowly regains bulk; time to repeat | Maintenance every 1–3 months keeps results |
These are typical ranges, not guarantees. People who clench heavily may find jaw Botox wears off sooner, and people whose weight changes will notice the effect on fat contouring. Taking photos from the same angle before treatment and at one, two and three months makes it easier to see progress you might otherwise miss. You can follow the full picture on the jaw Botox results page.
One more point that visitors often ask about: neither treatment works overnight. If you want to look slimmer for a wedding or a photo shoot, plan jaw Botox at least four weeks ahead and an InMode series even earlier. For a short holiday, the realistic goal is to start the change in Seoul and enjoy the full result after you are home.
Is it safe? Risks and side effects
Both treatments are well established when a licensed doctor plans them. The doctor checks your medical history, current medicines and any previous treatments on the jaw or chin before agreeing a plan.
- Jaw Botox: mild tenderness, temporary chewing fatigue with tough foods and, rarely, an uneven smile if toxin spreads to nearby muscles. Conservative dosing avoids an over-hollowed look above the jaw.
- InMode: warmth, redness and mild swelling that settle within hours to a day or two. Rarely, overheating can cause a small burn or blister, which is why energy and skin temperature are monitored throughout.
Neither treatment changes bone, and neither replaces surgery for heavy sagging. Read about side effects and when to contact us.
How much do jaw Botox and InMode cost in Seoul (2026)?
| Option | Coverage | Price (KRW) |
|---|---|---|
| Jaw Botox, Korean toxin | Both sides | ₩59,000 |
| Jaw Botox, Coretox | Both sides | ₩99,000 |
| Jaw Botox, Xeomin | Both sides | ₩199,000 |
| Jaw Botox, Allergan Botox | Both sides | ₩290,000 |
| InMode, one area | Under the chin, or one side of the jawline area | ₩129,000 |
| InMode Forma, full face | Cheeks, jawline and lower face | ₩189,000 |
| Forma full face + Mini FX | Tightening plus under the chin and jowls | ₩279,000 |
Prices exclude 10% VAT and InMode prices are per session. The tourist VAT refund on cosmetic procedures ended on January 1, 2026 — see the VAT refund guide. Full details on the InMode price page.
Planning a V-line treatment around your Seoul trip
Jaw Botox needs only one short visit. InMode works best as a series, so on a short trip you may have one or two sessions and continue maintenance later, or combine one session with Botox for an immediate start.
- Book ahead. Share your dates through our consultation form so we can suggest a plan.
- Avoid your arrival day. Schedule treatment from day two once you have rested.
- Getting here. Dernia is near Myeongdong Station (Line 4) and Euljiro 1-ga Station (Line 2) in Myeongdong.
- Longer stay? Two InMode sessions a week or more apart fit well into a 10–14 day visit.
Flying home? Neither treatment involves wounds, so most people can fly the next day. Avoid massaging the jaw for a few hours after Botox. Our aftercare guide explains what to do on the plane.
Frequently asked questions
Is jaw Botox or InMode better for a V-line?
Jaw Botox is better when muscle makes the jaw wide; InMode is better for soft fat and mild skin looseness. Many V-line plans use both.
Does InMode Mini FX remove fat permanently?
It aims to reduce small pockets of fat over a series of sessions. Weight changes and aging still affect the area, so maintenance sessions are common.
Does InMode hurt?
Most people feel warmth similar to a hot stone massage. The energy is adjusted to your comfort throughout.
How long does jaw Botox last?
About 4–6 months. Most people repeat it two or three times a year.
Can I have jaw Botox and InMode on the same day?
Often yes. Your doctor usually performs the device treatment first and then injects Botox, and confirms timing for you.
How much does InMode cost in Seoul?
At Dernia Clinic Myeongdong, InMode starts from ₩129,000 per session for one area, excluding 10% VAT. Full-face Forma with Mini FX is ₩279,000.
Planning a V-line treatment in Seoul?
Tell us your concerns and travel dates. A doctor examines your jaw and chin in person, explains whether muscle, fat or both are involved, and confirms your plan and price in English.
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This article is for general information and does not replace a medical consultation. Results vary between individuals, and suitability, treatment plan and final price are confirmed by a licensed doctor after an in-person examination. Dernia Clinic Myeongdong does not publish patient testimonials or before-and-after claims.