Fillers · Smile lines
Smile Line (Nasolabial Fold) Filler in Myeongdong, Seoul
Smile lines run from the side of the nose to the mouth corners. Filling the fold alone can look heavy, so our doctors first check whether the real cause is mid-face volume loss above it.
Quick answer
Nasolabial fold filler softens the lines from the nose to the mouth corners using hyaluronic acid, usually 0.5–1 ml per side, often with a cannula. The best results usually come from treating the cause first: restoring cheek support above the fold, then placing a smaller amount in the fold itself. Results usually last 9–12 months.
What causes smile lines?
Everyone has a nasolabial fold; it deepens when the mid-face loses volume and descends, when skin loses elasticity and when strong smiling muscles crease the area. Filling only the fold can make the lower face look heavy, which is why we often start with cheek filler.
Who is it for?
How Obliv plans smile line filler
Your doctor compares the fold at rest and when smiling, checks cheek volume and skin laxity, and decides how much goes into the cheek and how much into the fold. The fold is treated with a cannula, staying clear of the facial artery that runs nearby.
| Typical volume | Usually 0.5–1 ml per side in the fold, plus cheek support if needed |
|---|---|
| Technique | Cannula, deep at the base of the fold |
| Pairs well with | Cheek filler, Thermage |
Results and recovery
The fold looks softer immediately; mild swelling settles in a day or two.
Risks and side effects
- Swelling and bruising.
- A heavy look if the fold is overfilled; we prefer cheek support.
- Rarely, blocked blood flow; seek help for severe pain or colour change.
Aftercare
- Avoid massaging the area and big facial expressions on the day.
- Skip saunas, alcohol and hard exercise for 24–48 hours.
Dermal fillers by area
Each area has different anatomy, depth and safety rules, so we plan it separately. Choose an area for a doctor-reviewed guide, or read the dermal fillers overview.
Lines caused by movement usually respond better to Botox by area; skin quality to skin boosters. Meet the doctors who plan every injection.
Ask a doctor about fillers
Send front and side photos and your travel dates on WhatsApp (+82-10-3086-4084). English replies, a personal plan and a written quote before you fly.
Frequently asked questions
Why treat the cheeks for smile lines?
Smile lines often deepen because the cheek above has lost volume. Restoring support there softens the fold more naturally than filling the fold alone.
How long does smile line filler last?
Usually 9–12 months.
Will filler remove the line completely?
It softens it. A natural fold is part of every face; erasing it fully looks unnatural.
Related treatments and guides
Last reviewed 2026-10-29. General information, not a diagnosis; your plan is set after an in-person consultation.