Smile Line Treatment in Korea: Fillers and Other Options
“Smile lines” usually means the nasolabial folds, the creases running from the sides of the nose to the corners of the mouth (some people also use the term for crow’s feet around the eyes). In Korea there are several ways to soften them, and filler is only one. Because these lines have more than one cause, the best result often comes from choosing the right tool, or combination, for your face. This guide compares the main options available in Busan, what they cost and how they fit into a trip.
Quick answer: Hyaluronic acid filler is the quickest way to soften smile lines that stay visible at rest, with results lasting about 6–12 months. When cheek sagging drives the fold, thread lifts or lifting devices such as Ultherapy often work better or alongside filler. Radiesse adds volume and stimulates collagen, and restoring mid-face volume can soften folds indirectly. In Seomyeon, options start from KRW 149,000 for filler beside the nose and KRW 190,000 for a filler, Botox and mono-thread package, before 10% VAT.
What causes smile lines?
Everyone has some fold between the cheek and the mouth; it is part of a natural smile. It becomes more pronounced through a mix of:
- Volume loss in the mid-face and beside the nose.
- Sagging , as the cheek tissue descends and gathers over the fold.
- Skin changes : less collagen and elasticity, often accelerated by sun exposure and smoking.
- Movement : thousands of smiles and conversations every day.
A quick self-check: lie back and look in a handheld mirror. If the fold softens a lot, sagging is a major factor. If it stays deep, volume loss and skin creasing matter more.
Option 1: hyaluronic acid filler
HA filler is placed beneath the fold to lift it from below. It works straight away, takes about 10–20 minutes after numbing cream and can be dissolved if needed. It suits folds that remain visible when your face is still. The creases right beside the nose need a softer, more precise placement. The main limitation is that filling a fold caused by sagging can look heavy, so amounts should stay modest.
- Filler for creases beside the nose : from KRW 149,000
- Nasolabial fold filler 2cc + nasolabial fold Botox + 10 MINT mono threads : from KRW 190,000
Option 2: Radiesse (calcium hydroxylapatite)
Radiesse is a filler made of calcium hydroxylapatite microspheres in a gel. It adds volume immediately and stimulates collagen over the following months. It is used for nasolabial folds and mouth-corner lines and tends to last longer than many HA fillers. The trade-off is that it cannot be dissolved with hyaluronidase, so it is placed conservatively.
- Radiesse 1 syringe, 1 session : from KRW 590,000
Option 3: thread lifts
Dissolvable cog threads such as MINT threads have small barbs that grip and lift sagging tissue in the cheeks, while collagen forms around them. Lifting the cheek can make the fold look shallower without adding much filler. Expect 2–3 days of tightness and swelling, and 1–2 weeks of avoiding wide mouth opening and hard foods.
- Nasolabial fold mini lift: 4 MINT mono + 4 JAMBER threads + filler 2cc : from KRW 590,000
Option 4: energy-based lifting
HIFU and radiofrequency devices tighten deeper layers without needles or entry points. They suit people with early sagging who want gradual improvement and no downtime. Results build over 2–6 months. In Seomyeon, examples include Ultherapy 300 shots with full-face skin Botox from KRW 790,000 and ONDA 60,000 J with Shurink Universe 300 shots from KRW 429,000.
Option 5: restoring mid-face volume
Sometimes the most natural way to soften a smile line is to treat the cheek above it. Restoring flattened mid-face volume with HA filler or a gradual collagen stimulator such as Juvelook Volume can support the area and make the fold look less deep. Doctors often start here before filling the fold directly.
And if you mean crow’s feet?
The lines at the outer corners of the eyes when you smile are movement lines, and they respond best to Botox, which relaxes the muscle around the eye. Fine crepey lines there may also benefit from a skin booster.
Which option should you choose?
- Fold deep at rest, little sagging : HA filler.
- Fold plus visible cheek sagging : threads, often with a small amount of filler.
- Early laxity, no needles wanted : HIFU or radiofrequency lifting.
- Longer-lasting volume and collagen : Radiesse, placed conservatively.
- Flat mid-face : cheek volume first, then reassess the fold.
Prices checked October 2026. They exclude 10% VAT, are paid in won at the clinic, and prices can change, so confirm on WhatsApp before your visit.
Recovery and planning around a trip
Filler and energy devices fit easily into a short stay: you can sightsee the same day. Threads need a gentler few days with soft food. Heat-based devices are usually not done over fresh threads, so if you want both, the order and gap need planning; on a short trip, one treatment now and another on a later visit is often simplest. For any filler, avoid saunas, jjimjilbang, alcohol and hard exercise on the day, and seek urgent care for severe pain, skin colour change or vision change.
Frequently asked questions
Can smile lines be removed completely?
Not naturally. Some fold is part of a normal smile, and erasing it usually looks overfilled. The aim is to soften it.
Which lasts longest?
Radiesse and lifting devices often last longer than HA filler in this mobile area, but results vary with age, skin and lifestyle.
Can I combine filler and threads in one visit?
Yes, several packages do exactly that. The doctor decides the amounts once sagging and volume loss have been assessed.
Thinking about smile line treatment in Busan?
Send photos of your face at rest and smiling, plus your travel dates, on WhatsApp to get a plan and today’s price in English.
This article is for general information and does not replace a medical consultation. Suitability, results, recovery and side effects vary from person to person.
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