Treatment guide · Seoul dermatology
How Different Dermal Filler Techniques
Restore Facial Volume and Definition
November 3, 2026
Dermal filler techniques differ in the tool (fine needle or blunt cannula), the depth of placement and the type of hyaluronic acid (HA) used. Deeper, firmer filler is generally used to restore structure in areas like the cheeks, chin and jawline, while softer filler placed more superficially smooths lines and refines contours. In Seoul, HA filler typically costs about ₩100,000–₩400,000 per 1cc (2026 estimate), and results usually last around 6–18 months depending on product and area.
What is dermal filler and how does it restore volume?
Dermal filler is a gel injected under the skin to add volume, support or definition. In Seoul, most cosmetic fillers are made of hyaluronic acid (HA) , a sugar molecule that occurs naturally in skin and holds water. HA fillers are cross-linked so they last longer than natural HA, and they can usually be dissolved with an enzyme called hyaluronidase if needed.
With age, the face loses volume from fat pads, bone and collagen. The cheeks flatten, temples hollow, the chin may recede, and shadows form under the eyes and around the mouth. Filler does not stop ageing, but it can replace some lost volume and create the appearance of better structure.
The result depends less on the product name and more on the technique: where it is placed, how deep, with which tool and in what amount. That is why two people with the same number of cc's can look very different afterwards.
What are the main dermal filler techniques?
Doctors combine several techniques depending on the area and goal. These are the ones you are most likely to hear about in a Seoul consultation:
| Technique | How it works | Often used for |
|---|---|---|
| Bolus (deep depot) | Small amount placed deep, often near bone, to lift and support | Cheekbones, chin, temples |
| Linear threading | Filler laid in thin lines as the needle or cannula withdraws | Jawline, nasolabial folds, lips |
| Fanning | Several lines from one entry point in a fan shape | Cheeks, temples, larger areas |
| Cannula technique | Blunt, flexible tube moves under skin through few entry points | Under-eyes, cheeks, temples, jawline |
| Micro-droplet / serial puncture | Tiny amounts placed close together near the surface | Fine lines, skin quality, lip borders |
| Layering | Firmer filler deep, softer filler above for a smooth surface | Mid-face, chin, combined contouring |
Needle or cannula?
A fine needle allows precise placement, especially deep on bone or in small areas like the lip border. A blunt cannula is often preferred in areas with many blood vessels or delicate skin, such as under the eyes and temples, because it may lower the risk of bruising and can cover a wider area from one entry point. Many experienced injectors use both in one session. Neither tool removes all risk.
Which technique suits which area of the face?
Korean aesthetic trends often favour a soft, balanced, slightly heart-shaped face with a defined chin and smooth forehead and temple contours. Below is a general guide to how filler is commonly used by area; your doctor will adapt it to your anatomy.
| Area | Goal | Common approach | Typical amount |
|---|---|---|---|
| Cheeks / mid-face | Lift and restore fullness | Deep bolus or cannula, firmer HA | 1–2cc |
| Chin | Projection and balance | Deep bolus near bone | 1–2cc |
| Jawline | Sharper contour | Linear threading or cannula along the jaw | 2–4cc |
| Temples | Fill hollowing | Deep bolus or cannula | 1–2cc |
| Under-eyes (tear trough) | Soften shadows | Cannula, soft HA, small amounts | 0.5–1cc |
| Nasolabial folds | Soften deep lines | Deep support plus threading | 1–2cc |
| Forehead | Smooth, rounded contour | Cannula, soft spreading layer | 1–3cc |
| Lips | Shape and hydration | Threading and micro-droplets | 0.5–1cc |
Amounts are typical ranges for illustration only. A doctor decides the right amount after examining you.
Volume versus definition
Volume restoration aims to replace what has been lost, such as hollow temples or flat cheeks. Definition aims to sharpen edges, such as the chin point or jawline. Good results often balance both: too much volume can look heavy, while focusing only on definition can look angular. Many doctors prefer to treat structural points first and then reassess before adding more.
How do different HA fillers affect the result?
HA fillers vary in firmness, particle structure and how much they spread. Doctors often describe this as how 'cohesive' or 'lifting' a filler is.
| Filler type | Feel | Best suited to |
|---|---|---|
| Firm, high-lift HA | Holds shape, resists pressure | Chin, jawline, cheekbones |
| Medium HA | Balance of lift and softness | Mid-face, nasolabial folds |
| Soft, spreading HA | Smooth, flexible | Lips, under-eyes, forehead, fine lines |
Korean-made HA fillers are widely used in Seoul and usually cost less than imported brands. Both categories are used by many clinics. What matters most is that the product is approved for use in Korea, is opened in front of you, and is chosen for the area being treated.
Doctors also think about how a filler behaves with facial movement. Areas that move a lot, such as the lips and the folds around the mouth, need a softer, more flexible gel so the result looks natural when you talk and smile. Areas that mainly need support, such as the chin and cheekbones, benefit from a firmer gel that keeps its shape. Using the wrong firmness in the wrong place is one of the most common reasons filler looks unnatural.
What happens during a filler appointment?
- Consultation. The doctor examines your face from several angles, discusses goals and explains the plan, products and amounts.
- Photos and marking. Many clinics take before photos and mark the areas while you sit upright.
- Numbing. Topical numbing cream is applied for about 20–30 minutes; many fillers also contain lidocaine.
- Injection. Using needle, cannula or both, the doctor places filler in stages and checks symmetry. This often takes 15–40 minutes.
- Shaping and review. Gentle moulding where appropriate, then a mirror check and aftercare advice.
Results, downtime and risks of dermal filler
Results are visible straight away, though swelling can make the area look fuller for the first few days. The settled result is usually seen at about 1–2 weeks.
| Timeline | What to expect |
|---|---|
| Same day | Immediate volume; possible redness, swelling and tenderness |
| Day 2–7 | Swelling and any bruising gradually settle |
| Week 2 | Filler integrates; result looks more natural |
| Month 6–18 | Gradual breakdown; timing depends on product and area |
Other possible issues include lumps, asymmetry, migration over time and a puffy look if too much is used. Results vary, and a doctor should explain risks before you consent.
How much does filler cost in Seoul, and how do you choose a clinic?
| Treatment | Typical price range (KRW, 2026 estimate) |
|---|---|
| HA filler, per 1cc | ₩100,000–₩400,000 |
| Lip filler, 1cc | ₩200,000–₩500,000 |
| Sculptra (collagen stimulator), per vial | ₩400,000–₩900,000 |
| Consultation | Often free or ₩10,000–₩30,000 |
Prices depend on the brand, the number of cc's, the area and the clinic. Ask for a written quote that lists the product and total cc's, and check whether VAT is included.
- Doctor-led injection — confirm a licensed doctor will perform the procedure.
- Product transparency — ask to see the sealed box and product name.
- Emergency readiness — ask whether hyaluronidase is available on site.
- Conservative plan — a good doctor may suggest less filler, or another treatment, rather than more.
- English communication — an English-speaking coordinator or doctor helps you describe the look you want.
- Aftercare access — make sure you can contact the clinic by WhatsApp, KakaoTalk or Line after you leave Korea.
Frequently asked questions
How long does dermal filler last?
Most HA fillers last around 6–18 months, depending on the product, area and your metabolism. Areas that move a lot, like the lips, often break down faster.
Is cannula filler safer than needle filler?
A blunt cannula may lower the risk of bruising and some vascular complications in certain areas, but it does not remove all risk. Many doctors use both tools depending on the area.
Can filler be dissolved if I do not like it?
HA filler can usually be dissolved with hyaluronidase. This should be done by a doctor, and more than one session may be needed.
How much filler do I need?
It depends on the area and your goals. A chin might need 1–2cc, while a jawline can need more; a doctor decides after examining you.
What is the downtime after filler?
Swelling and possible bruising usually settle within a few days to a week. Many people return to normal activities the same day.
How much is filler per cc in Seoul?
As of 2026, HA filler typically costs about ₩100,000–₩400,000 per 1cc. Korean HA is usually cheaper than imported brands; always confirm VAT and total cc's.
Looking for a filler clinic in Seoul?
Tell us which area you want to treat and where you are staying, and we will point you to English-friendly clinics that offer dermal filler.
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