Best Treatments for Double Chin and Jawline in Korea

Quick answer: The best double chin and jawline treatments in Korea depend on the cause. Fat-dissolving injections and InMode FX reduce small fat pockets, jaw Botox slims a bulky masseter, Ultherapy or Shurink tightens loose skin along the jaw, and chin filler adds projection to a short chin. Many Seoul patients combine two for a sharper V-line.

Before choosing a treatment, a doctor works out what is blurring your jawline. There are four common causes, and many people have more than one.

1. Submental fat: a soft fat pad under the chin that can persist even at a healthy weight.
2. Skin laxity: loosening skin and SMAS along the jaw and neck, often starting in the 30s.
3. Masseter muscle bulk: strong chewing muscles make the lower face look square or wide.
4. Chin and jaw structure: a short or recessed chin makes the neck-to-chin angle look soft.

A quick check: if you can pinch a soft pad under your chin, fat is likely involved. If the jaw corners bulge when you clench, the masseter is a factor. If the chin sits behind the line of your lips in profile, projection may help.

Fat-dissolving injections place a solution into the fat pocket to break down fat cells, which the body then clears. Double chin injections in Seoul usually need 2–4 sessions a few weeks apart. Expect swelling and tenderness for 1–3 days. The same approach can treat the jowl line; see fat-dissolving injections in Korea.

InMode is a radiofrequency platform. In Korea, Mini FX and FX are used for small fat pockets such as the double chin and jawline, often paired with Forma heating for skin tightening. InMode in Hongdae has little downtime and is often done as a series.

If loose skin is the issue, micro-focused ultrasound helps. Ultherapy uses real-time imaging to target the SMAS layer and is often chosen for a sharper jaw contour, while Shurink Universe is a more affordable Korean HIFU that is repeated more often. For a direct comparison, read Ultherapy vs Thermage for Double Chin.

Jaw Botox relaxes the masseter muscle, which gradually slims a square lower face. Results start in about 2–4 weeks as the muscle shrinks and usually last longer than forehead Botox, often around 4–6 months. It may also reduce clenching. Korean toxins such as Nabota or Botulax and imported options such as Botox or Xeomin are all widely used; see Botox in Korea for details.

A hyaluronic acid filler can lengthen or project the chin, which visually tightens the jaw-to-neck angle and balances a V-line. Dermal fillers in Seoul give an immediate result and typically last about 6–18 months depending on product and area. They can be dissolved with hyaluronidase if needed.

Choosing between muscle slimming and chin shaping? Our guide Jaw Botox vs Chin Filler: Which Is Better for a V-Line Face? covers who suits each.

These are approximate 2026 Seoul market ranges, not the prices of any single clinic. Cost depends on units or cc, Korean versus imported products, number of areas, whether the doctor performs the treatment, packages and the 10% VAT usually added. See the current price list for exact figures, or our Jaw Botox Cost in Korea: Seoul Price Guide.

Because the lower face has several layers, combinations are common in Seoul. A doctor will tailor these, but typical pairings include:

• Square jaw plus soft chin: jaw Botox with 1–2cc of chin filler for a V-line profile.
• Fat plus mild laxity: fat-dissolving injections or InMode FX, then HIFU to tighten.
• Jowls in the 40s: Ultherapy along the jaw with filler to support the chin and pre-jowl area.

Combinations may be done on the same day or spaced over a few visits, depending on swelling and your schedule.

Results vary by treatment. Filler shows immediately, though swelling settles over 2–3 days. Jaw Botox takes 2–4 weeks to slim visibly, so it suits people who will see the result at home rather than in Seoul. Fat-dissolving injections and InMode FX improve gradually across a series. HIFU builds over 2–3 months.

Common short-term effects are swelling, tenderness, small bruises and, after fat-dissolving injections, a firm or puffy feeling under the chin for a few days. Chewing may feel slightly weaker for a few weeks after jaw Botox. Tell the doctor if you are pregnant or breastfeeding, as most treatments are postponed.

Hongdae is convenient for jawline treatments on a short trip. Hongik Univ. Station is served by Line 2, the Gyeongui–Jungang Line and the AREX Airport Railroad, which runs directly to Gimpo and Incheon airports. Many clinics in the area have English- or Japanese-speaking staff.

Many clinics take consultations by WhatsApp or KakaoTalk, so send a front and side photo of your jawline plus your travel dates. Before booking, confirm who performs the treatment, the exact units, shots or cc, and whether VAT is included. Check the current Hongdae clinic price list, then read more about double chin injections, jaw Botox or body contouring if you also want to treat other areas. Leave a buffer before your flight, since swelling after filler or fat-dissolving injections can last a few days.

They treat different things. Jaw Botox slims the side of the lower face by relaxing a bulky masseter muscle, while a double chin injection reduces fat under the chin. If your face looks wide at the jaw corners, Botox is usually the first choice; if the fullness is under the chin, fat-dissolving injections or InMode FX may suit better.

Most people need about 2–4 sessions spaced a few weeks apart, depending on how much fat is present and the product used. Visitors on a short trip can start with one session and continue at home or on a later visit. A doctor will estimate the number after examining the area.

Jaw Botox involves a few quick injections into each masseter and is usually well tolerated, with or without numbing cream. There is no real downtime. The slimming effect appears gradually over 2–4 weeks as the muscle shrinks and typically lasts about 4–6 months.

Flying the next day is generally possible, but swelling after chin filler or fat-dissolving injections can last 2–3 days. If you want a follow-up check or photos, leave a buffer. Avoid saunas, heavy exercise and pressing on the area for 24–48 hours.

Both are widely used in Seoul. Korean toxins usually cost less, and imported options such as Botox or Xeomin cost more; Xeomin contains no complexing proteins. Many patients are happy with either. The doctor will discuss units, product choice and how long results typically last for your muscle strength.

• Chin Filler vs Double Chin Injection: Which Is Better for Jawline Contouring?
• Thermage vs Ultherapy vs InMode: Which Is Best for You?
• Best Treatments for Sagging Skin in Korea

This guide is general information for international visitors, not medical advice. A doctor confirms suitability, dosage and number of sessions at consultation. Prices are approximate Seoul market ranges and change over time — always check the clinic's current price list. Last updated: October 2026.