Er:YAG Laser in Seoul: Gentle Resurfacing for Texture and Lines
The short answer
Er:YAG laser in Seoul is an ablative resurfacing treatment that removes very thin layers of damaged skin with precision and less heat than CO2, improving fine lines, rough texture, pores and mild scars. In Gangnam a full-face session typically costs about ₩200,000–₩800,000 depending on depth, with roughly 3–7 days of redness and peeling. Most people need 1–4 sessions spaced 4–6 weeks apart.
Key facts
- Wavelength: 2940 nm, strongly absorbed by water in the skin
- Treats: fine lines, rough texture, enlarged pores, shallow acne scars, some raised lesions
- Typical price: about ₩200,000–₩800,000 per full-face session
- Downtime: about 3–7 days of redness and fine peeling
- Sessions: 1–4, every 4–6 weeks
- Compared with CO2: less heat, faster healing, generally lower pigment risk
How Er:YAG resurfacing works
The erbium:YAG laser emits light at 2940 nm, a wavelength absorbed extremely well by water. Because skin is mostly water, the energy vaporizes very thin layers of tissue with little heat spreading to surrounding areas. As the skin heals, it regenerates a fresher surface and builds new collagen beneath.
Er:YAG can be used in a fully ablative mode, removing a uniform layer, or more commonly in fractional mode, which treats tiny columns and leaves bridges of untouched skin for faster healing. Seoul clinics often choose fractional Er:YAG when patients want visible texture improvement without the longer recovery of CO2.
What it treats
- Fine lines around the eyes and mouth
- Rough, uneven or sun-damaged texture
- Enlarged pores
- Shallow acne scars
- Some benign raised lesions, such as seborrheic keratoses, when used precisely
Er:YAG versus CO2 versus non-ablative
| Feature | Er:YAG | CO2 | Non-ablative fractional |
|---|---|---|---|
| Heat to surrounding skin | Low | Higher | Moderate, no surface removal |
| Downtime | About 3–7 days | About 5–10 days | 1–3 days |
| Tightening effect | Mild to moderate | Stronger | Mild |
| Pigment risk in Asian skin | Lower | Higher | Low |
| Sessions | 1–4 | 1–3 | 3–6 |
For comparison, see our guides to CO2 laser resurfacing and fractional laser.
What treatment feels like
Numbing cream is applied for 30–60 minutes. The laser produces a snapping, hot sensation. Afterwards your skin feels like a sunburn, appears red and may ooze slightly in deeper settings. Over 3–7 days it peels and flakes to reveal smoother skin. Keep it moist with the ointment the clinic gives you and avoid makeup until peeling ends.
Cost in Seoul
Typical Gangnam prices range from about ₩200,000 for a light fractional full-face session to ₩800,000 for deeper resurfacing; spot treatments of lesions are priced per lesion or area. Ask whether post-care ointment, calming LED and follow-up are included.
Planning around a trip
- Allow at least a week in Seoul after treatment before photos or important meetings.
- Flying during peeling is fine, but use a hydrating balm on the plane.
- Strict sun avoidance for 4–6 weeks reduces the risk of darkening.
- Stop retinoids and exfoliants about a week beforehand, as advised.
Who should be cautious
Tell the doctor if you are prone to cold sores (antiviral medication may be needed), have taken isotretinoin recently, tan easily or have a history of keloids. People with active melasma usually need gentler alternatives.
Choosing a clinic
Ask which Er:YAG device and mode will be used, how deep the treatment will be and who operates the laser. A careful clinic will adjust settings for your skin tone and give clear written aftercare. If acne scars are your main concern, our acne scar laser guide outlines other combinations.
This guide is for general information and is not medical advice. Prices are typical ranges reported by Gangnam clinics in 2026 and vary by clinic, doctor and treatment plan; confirm directly with the clinic.
Patient questions
Frequently asked questions
How long is the downtime?
Usually about 3–7 days of redness and peeling, depending on depth.
Is Er:YAG better than CO2?
Not better, but different: it heals faster with lower pigment risk, while CO2 gives stronger tightening for deeper lines.
How many sessions do I need?
Light texture concerns may need one or two; scars and deeper lines often need three or four.
Can it be used on darker skin?
Yes, with careful settings, but post-inflammatory darkening is still possible, so sun protection is essential.
Not sure which Gangnam clinic is right for you?
Tell us your goals, budget and travel dates. Our English-speaking coordinators compare doctor-led clinics and usually reply with free quotes within 24 hours.