Chin filler in Korea uses a firm hyaluronic acid gel placed deep along the chin bone to add forward projection, lengthen a short chin or smooth a dimpled crease, without an incision. In Gangnam the visit is usually short: profile photos, numbing cream for about 20 to 30 minutes, then a few minutes of injection. Swelling and tenderness are common for several days, and the new line shows straight away. The chin has arteries running close to common injection planes, so the treating doctor should explain warning signs before starting and keep hyaluronidase ready in the room.
Guide
What a chin injection can and cannot change
Gel works on the chin as a small structural add-on. It can bring a slightly receding point forward, add a little vertical length and smooth the crease some people get above the chin when they tighten the lip muscles.
It does not move bone or teeth. A strongly retruded jaw, a bite problem or a chin that is already long and wide tends to look heavier with more volume, and an implant, genioplasty or orthodontic opinion may fit better.
- Reasonable goal: modest forward projection seen from the side
- Poor goal: correcting a bite or a markedly small lower jaw
Guide
Reading your side profile before the appointment
Many doctors in Gangnam start with a straight side photo and compare the chin point with the lips and nose tip. That decides whether the plan is projection, length, width or a mix.
Mention any previous filler, threads or implants in the lower face, since old product changes how new gel sits.
| Concern seen in profile | Role of gel | Option that may suit better |
|---|---|---|
| Chin point sits slightly behind the lips | Often a good fit | Not usually needed |
| Short lower third of the face | Can add some length | Genioplasty if the gap is large |
| Bite problem or very small jaw | Limited and may look heavy | Orthodontic or surgical opinion |
Guide
How chin gel is placed
A firm, cohesive hyaluronic acid gel is chosen because it must hold shape against muscle movement. Calcium hydroxylapatite is sometimes offered too, but it is harder to reverse, so ask which product is planned and see the sealed box.
The gel usually goes deep, close to the bone, through a needle at the chin point or a blunt cannula from one entry point. A cautious first session with a top-up after swelling settles tends to look more natural than filling fully at once.
Guide
Vascular events in the chin: what research describes
Filler injected into or pressing on an artery can block blood flow to the skin. A 2020 review in Dermatologic Therapy by Wollina and Goldman maps the facial danger zones where arteries run near common injection planes. On the chin, the small vessels that feed the lower lip and the chin skin lie close to the paths a needle or cannula follows, which is why slow, deep, low-pressure placement matters.
Volume alone does not remove the risk. In a 2026 case report in Plastic and Reconstructive Surgery – Global Open, Dewi and colleagues described a 54-year-old woman who developed rising pain, discoloration and a lace-like mottled pattern across the chin and neck about 24 hours after a low-volume chin injection. She received high-dose pulsed hyaluronidase starting 25 hours after the injection, with aspirin and warm compresses, and had recovered fully by day 21 without scarring. The authors stress that even small volumes can cause occlusion and that quick recognition matters.
- Pain that gets worse rather than easing over the first day
- Pale, gray, bluish or blotchy skin on the chin, lip or neck
- Slow return of color when the skin is pressed
- Any change in vision, which needs emergency care at once
Guide
Timing the trip around the injection
Plan chin treatment early in a Seoul stay rather than the day before departure. Mild swelling and some bruising at the entry points are usual, and the first 48 hours are when a delayed vascular problem is most likely to show, so staying nearby lets the same clinic check you.
Before leaving, ask for the product name, batch number and volume in writing for any doctor at home.
Evidence
Research behind this page
- Facial vascular danger zones for filler injectionsDermatologic Therapy · 2020 · doi:10.1111/dth.14285
A review that maps facial regions where arteries run close to common filler injection planes and discusses how to lower the risk of vascular complications.
- Vascular Occlusion Following Low-volume Chin Filler: Successful Management With High-dose Pulsed HyaluronidasePlastic and Reconstructive Surgery - Global Open · 2026 · doi:10.1097/gox.0000000000007425
A case report of vascular occlusion about a day after a low-volume chin injection, treated with high-dose pulsed hyaluronidase and fully recovered by day 21.
FAQ
Questions about Fillers in Gangnam
How long does hyaluronic acid usually hold in the chin?
Chin gel often keeps its shape for around a year and sometimes longer, because the area moves less than the lips. Firmer, more cross-linked gels placed deep near the bone tend to break down more slowly than soft gels near the surface. Results vary from person to person, so a review visit is the right moment to decide whether a top-up is worth it.
Does a chin injection hurt?
Most people describe pressure and brief stinging rather than sharp pain, helped by numbing cream and lidocaine mixed into many gels. The chin point is less sensitive than the lips. Tenderness when chewing or touching the area is common for a few days. Tell the doctor if pain climbs after you leave instead of fading, because that is a warning sign rather than normal soreness.
Can the gel be dissolved if I dislike the new shape?
Yes, hyaluronic acid gel can be broken down with hyaluronidase, an enzyme injected into the treated area. Partial correction is possible, so a chin that looks too long or too forward can often be reduced instead of fully reversed. Calcium hydroxylapatite and collagen stimulators cannot be removed this way. Ask before treatment whether the planned product is reversible and whether the clinic can see you again during your stay if a change is needed.
Can chin gel and toxin for the mentalis muscle be done on the same day?
They are often combined in one visit because they solve different parts of the same problem. Toxin relaxes the muscle that creates a dimpled, pebbled chin when you speak, while gel restores missing projection. Many doctors inject toxin first, or treat it at a review visit, so the muscle effect is clear before more volume is added. Ask for the toxin units and gel volume written separately.
What should I avoid in the first days after treatment?
Avoid pressing, massaging or sleeping face down on the chin for the first few days unless the doctor asks you to. Keep the entry points clean, and skip saunas, hard exercise and heavy alcohol for about 24 to 48 hours, as they can increase swelling and bruising. Contact the clinic quickly if the skin turns pale, blotchy or bluish, or if pain keeps rising.
Who should postpone a chin injection?
People who are pregnant or breastfeeding, have an active infection, cold sore or acne flare near the mouth, or have planned dental work within a couple of weeks should usually wait. Those with autoimmune disease, a history of severe allergic reactions or previous permanent filler in the lower face need a careful discussion first. Advice to consider surgery for a large jaw imbalance is a reasonable answer.