Chin filler in Korea is a hyaluronic acid injection placed close to the chin bone to bring a short or receding chin forward, add a little length, or smooth a dimpled crease, with no cut and no stitches. Around Hongdae it is often booked as one short appointment between other plans: the doctor studies the side profile, applies numbing cream, and injects in a single sitting. Swelling and tenderness usually ease within days. Gel adds volume over bone but cannot move it, so a markedly small jaw or a bite problem may call for an implant or genioplasty instead.
Guide
What profile balance means for the lower face
Doctors who plan a chin usually look at the face from the side first. A common reference is an imaginary line from the tip of the nose to the front of the chin. When the chin sits well behind that line, the nose and lips can look larger than they are, and a small forward step at the chin often changes the impression more than any work on the nose.
Seen from the front, the questions change. Is the lower third of the face short compared with the middle third? Does the mentalis muscle pucker when the lips close, leaving an orange-peel surface? Each answer points to a different plan. Front-camera selfies distort the lower face, so a neutral side photo taken at the clinic is a fairer baseline.
Guide
Gel, implant or genioplasty: matching the method to the chin
Hyaluronic acid suits a mild to moderate deficit or a first trial of a new shape. The body breaks the gel down gradually, and an enzyme called hyaluronidase can dissolve much of it if the result looks wrong. An implant goes in through a small incision and is meant to stay. Genioplasty, a sliding cut of the chin bone, can move the chin in any direction and is considered when the bone sits far back or is clearly asymmetric. Both are operations whose recovery rarely fits a short city stay.
| Point | Hyaluronic acid gel | Chin implant | Genioplasty |
|---|---|---|---|
| What changes | Soft volume over the bone | Fixed added projection | Position of the bone itself |
| Incision | None, needle or cannula | Small cut inside the mouth or under the chin | Cut inside the mouth |
| Reversibility | Can be dissolved with an enzyme | Removal needs another operation | No simple way back |
| Usual recovery | Days of swelling | Weeks | Weeks, with eating limits |
| Typical fit | Mild deficit or a trial shape | Moderate deficit, stable bone | Large deficit, asymmetry, bite issues |
Guide
Why firm gels are used along the chin bone
Chin work generally uses a firm, cohesive gel, described on product sheets by a high G prime, or elastic modulus, and placed deep against the bone rather than just under the skin. A stiffer gel resists the pull of the mentalis muscle and the lower lip, which are in near-constant motion.
The assigned literature does not include a chin trial, but related work shows the principle. In a 2021 report in the Journal of Cosmetic Dermatology, Muti treated the midface of 20 patients with a deep, high G prime hyaluronic acid filler and recorded good scores on the Global Aesthetic Improvement Scale plus high satisfaction at one and three months. That study concerned the cheek area, so it supports the logic of firm, deep placement rather than any chin-specific outcome.
Guide
Vascular events and migration: what the research describes
Any facial injection carries a small chance of gel entering or compressing a blood vessel. Kapoor and colleagues, in a 2019 systematic review in Aesthetic Plastic Surgery, analyzed 44 published cases of vision loss after hyaluronic acid filler. The nose, glabella and forehead were the areas most often involved, and no case in that review came from the lower face, including the chin, jawline and lips.
A lower reported rate is still not zero. Arteries run near the chin and lower lip, and a blockage can show as sudden pain, blanching or a mottled, dusky patch of skin. Hyaluronidase works most effectively early, so those signs need the treating clinic at once.
Migration means gel drifting from where it was placed. It is more often tied to shallow placement, frequent top-ups and strong muscle action than to one careful session, and it shows as a chin that looks wider or softer over the months.
Guide
Fitting the appointment into a Hongdae stay
Hongdae is a lively evening area, and the first night after a chin injection is better spent quietly, since alcohol, saunas and hard workouts tend to add swelling. Sleep face up and keep pressure off the chin. Booking early in the trip leaves room for a follow-up check. The Airport Railroad stops at Hongik University station; keep the written aftercare in case a warning sign appears after the flight.
Evidence
Research behind this page
- Vision Loss Associated with Hyaluronic Acid Fillers: A Systematic Review of LiteratureAesthetic Plastic Surgery · 2019 · doi:10.1007/s00266-019-01562-8
A review of 44 published vision-loss cases after hyaluronic acid filler, mostly after nose, glabella or forehead injections, with none from the chin, jawline or lips.
- Midface 3D restoration with an innovative high G’ fillerJournal of Cosmetic Dermatology · 2021 · doi:10.1111/jocd.14282
Twenty patients treated in the midface with a deep, high G prime filler showed good improvement scores and satisfaction at one and three months.
FAQ
Questions about Fillers in Hongdae
How long does a chin result usually hold?
Chin results usually hold longer than lip results, because the chin moves less and firmer gels sit deeper. The body still breaks hyaluronic acid down at a pace set by the product, the dose and personal metabolism. Most doctors suggest judging the shape once swelling settles and deciding on a top-up only after it has clearly faded. Results vary from person to person.
How much discomfort should I expect when the chin is injected?
Most people describe pressure and brief stinging rather than sharp pain, helped by numbing cream and the anesthetic mixed into many gels. Deep placement against bone can feel dull and firm. Some tenderness when chewing can last a few days, and cloth-wrapped ice eases the first evening. A cannula, which needs fewer entry points, may suit people who are anxious about needles.
Can gel fix a double chin?
Gel does not remove fat under the jaw, so it cannot treat a double chin on its own. A receding chin can make the neck angle look softer, and added projection may sharpen that angle slightly. Fat below the jaw responds to other approaches, such as fat-reducing injections or liposuction, which the doctor can discuss separately. Side photos help sort out which problem is present.
Can the result be reversed if my profile looks wrong?
Hyaluronic acid can usually be dissolved with hyaluronidase, which is one reason gel suits a first change. Doctors often wait until swelling fades, since early puffiness exaggerates projection. Dissolving can take more than one visit, so ask before treatment whether the clinic stocks the enzyme and how a correction would fit your stay, especially near the end of a trip.
When is it better not to have the chin injected yet?
Postponing is wise during pregnancy or breastfeeding, an active skin infection, a recent dental infection or a bite problem still under orthodontic review. People with permanent or unknown filler already in the chin need extra caution, because new gel can react with old material. Share every past injection, including any from years ago, and any blood-thinning medicine.