CO2 Laser Resurfacing in Seoul: Deep Renewal for Scars
The short answer
CO2 laser resurfacing uses an ablative 10,600 nm laser, usually in fractional mode, to vaporise microscopic columns of skin and trigger strong collagen renewal for acne scars, wrinkles and rough texture. In Gangnam a full-face fractional session typically costs about ₩200,000–₩800,000, takes 30–60 minutes with numbing, and needs 5–7 days of recovery. Most people book 2–4 sessions four to eight weeks apart.
Key facts
- Laser type: ablative CO2 (10,600 nm), usually fractional
- Treats: acne scars, wrinkles, enlarged pores, rough texture, some scars
- Session time: 30–60 minutes including numbing
- Downtime: 5–7 days of redness, crusting and flaking
- Sessions: typically 2–4, every 4–8 weeks
- Typical Seoul price: about ₩200,000–₩800,000 per full-face session
- Key risk: temporary pigmentation, especially in darker skin
How CO2 laser resurfacing works
The CO2 laser emits infrared light that is absorbed strongly by water in the skin. In fractional mode, it creates thousands of tiny columns of vaporised tissue surrounded by untouched skin. Those columns heal quickly from the healthy skin around them, and in the process the dermis produces new collagen and remodels scar tissue. The result is smoother texture, shallower scars and firmer skin.
Fully ablative CO2, which removes the entire surface layer, is rarely used for cosmetic purposes in Korea today because downtime and pigment risk are much higher. Fractional CO2 offers a strong result with a more manageable recovery.
What it can treat
- Boxcar and rolling acne scars
- Fine and moderate wrinkles, especially around the eyes and mouth
- Enlarged pores and rough, uneven texture
- Some surgical and traumatic scars
- Sun-damaged skin
CO2 laser is also used for removing lesions such as skin tags and certain moles, but that is a different, targeted technique. For scar plans that combine several tools, see our guide to acne scar laser treatment.
Comparing resurfacing options
| Treatment | Strength | Downtime | Pigment risk |
|---|---|---|---|
| Fractional CO2 | High | 5–7 days | Moderate |
| Erbium YAG | Moderate to high | 3–5 days | Lower than CO2 |
| Non-ablative fractional | Moderate | 1–3 days | Low |
| RF microneedling | Moderate | 2–4 days | Low |
Preparing for treatment
The doctor will check your skin type, scar pattern and history of pigmentation or cold sores. You may be asked to stop retinoids and exfoliating acids a week beforehand, avoid tanning for several weeks, and, if you have a history of cold sores, start antiviral medication. Arrive with clean skin and no makeup. Plan your schedule so that the first five to seven days afterwards are quiet.
On the day
Numbing cream is applied for 40 to 60 minutes. With eye protection in place, the doctor passes the laser over the face in a pattern, often using higher density over scars. You will feel heat and prickling, and you may smell a faint burning odour, which is normal. Afterwards the skin feels hot and tight, similar to a strong sunburn. A soothing ointment or a regenerative serum is applied before you leave.
Recovery day by day
- Days 1–2: redness, swelling and oozing; keep the skin moist with ointment
- Days 3–5: tiny brown crusts form and begin to flake off
- Days 5–7: most crusts shed; pink new skin is revealed
- Weeks 2–6: pinkness fades; results continue to improve
Do not pick crusts, and avoid makeup until they have shed. Gentle cleansing, a bland moisturiser and strict sun protection are essential.
Pigment safety for Asian skin
Darker and Asian skin types are more prone to post-inflammatory hyperpigmentation after CO2 laser, usually appearing two to four weeks later. Korean dermatologists manage this risk with conservative density, longer intervals between sessions, pre- and post-treatment brightening care and close follow-up. Temporary pigmentation generally fades over a few months with care. Our Korean laser safety guide for Asian skin explains more.
Planning as a foreign patient
Allow at least seven days in Seoul after treatment, ideally with a check-up on day five or six. Flying with crusted skin is possible, but use plenty of ointment on the plane and avoid sun at your destination. Ask the clinic about the device, the planned density, aftercare products and how they handle pigmentation if it appears after you leave. Results build with each session, so consider when your next trip could fit a follow-up.
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 after CO2 laser?
Plan for about 5–7 days of redness, crusting and flaking, with pinkness that fades over the following weeks.
Is CO2 laser safe for Asian skin?
Yes, with conservative settings and careful aftercare, though temporary pigmentation is more common and should be discussed.
How many sessions do acne scars need?
Most patients need 2–4 sessions spaced 4–8 weeks apart.
Does CO2 laser hurt?
Numbing cream makes it tolerable; you feel heat and prickling, and the skin feels sunburnt afterwards.
Can I wear makeup after treatment?
Wait until crusts have shed, usually around day 5–7.
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.