
Dr. Yoon-Gon Ryu
Flagship clinic · KOL for leading lifting & regenerative devices · Featured in Authority Magazine (2026)
An ablative fractional CO2 laser reaches roughly 400 to 700 microns into the dermis, so 3 things matter most when choosing a clinic: skin-type-safe settings, a doctor-led plan, and post-inflammatory hyperpigmentation prevention.
To choose a good CO2 laser clinic in Seoul, prioritise one where a doctor assesses your skin type and lesion first, tailors ablative fractional CO2 settings to your Fitzpatrick type, plans a realistic session series, and actively prevents post-inflammatory hyperpigmentation. Reberry Clinic offers consultation-led CO2 laser care with English support at our Seoul locations.
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CO2 laser is an ablative fractional device that emits a 10,600-nm wavelength absorbed by water in the skin. It creates thousands of microscopic columns of controlled injury (micro-ablative zones) while leaving surrounding tissue intact, which triggers wound healing, collagen remodelling, and resurfacing. It is used for acne scars, wrinkles, texture, enlarged pores, and pinpoint removal of benign lesions, so the same device can serve very different goals depending on how a doctor sets it.
Clinic choice matters because CO2 laser is operator-dependent. The depth, density, and energy are chosen by the person holding the handpiece, and those parameters must be matched to your Fitzpatrick skin type. Asian and deeper skin tones have a higher tendency toward post-inflammatory hyperpigmentation (PIH), so conservative settings, priming, and aftercare planning distinguish a careful clinic from a rushed one.
At Reberry Clinic, CO2 laser is consultation-led: the clinic’s doctors first assess your skin type, concern, and history, then tailor the plan and explain expected downtime and results in English. International patients are supported across our Seoul locations (Gangnam, Myeongdong), so care can be planned around your travel schedule.
The ablative fractional CO2 laser delivers 10,600-nm energy in a fractional pattern, vaporising narrow columns of tissue and heating the dermis around each column to depths of roughly 400 to 700 microns. Because only a fraction of the skin’s surface is treated per pass, untreated skin between the columns speeds healing and lowers downtime compared with fully ablative resurfacing. The controlled thermal injury upregulates the wound-healing cascade, matrix metalloproteinases, transforming growth factor-beta, and fibroblast activity, which drives neocollagenesis and dermal remodelling over the following months. For benign lesion removal, the same laser is used in a focused, pinpoint mode to vaporise superficial tissue layer by layer. A good clinic chooses depth, density, and energy per skin type and concern, and reserves higher settings for deeper scarring while keeping darker skin tones on more conservative parameters to reduce pigment risk.
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Check that 1 of the clinic’s doctors examines your skin type and concern in person before any plan; parameters depend entirely on this.
A good clinic keeps darker Fitzpatrick types on more conservative settings, since PIH affected up to 92% of Asian subjects in some studies when settings were not adjusted.
Acne scars usually need 3 or more sessions spaced weeks apart, so be cautious of any clinic promising full correction in 1 visit.
Confirm the clinic uses priming, conservative energy, and strict sun protection, which can reduce post-inflammatory hyperpigmentation risk after treatment.
Expect roughly 5 to 7 days of crusting and redness; a careful clinic explains this and gives written aftercare before you commit.
See representative outcomes from Reberry Clinic. Results build gradually and vary by individual; your plan is assessed at consultation.










The clinic’s doctors assess your skin type, concern, and history, then explain whether CO2 laser suits you and what settings and downtime to expect, in English.
After numbing for about 20 to 30 minutes, the CO2 laser session itself usually takes around 15 to 30 minutes depending on the treated area.
Scar plans often run as a series of 3 or more sessions spaced several weeks apart, so timing is mapped across visits rather than a single appointment.
Initial healing takes about 5 to 7 days, while collagen-driven improvement continues to build over roughly 3 to 6 months.
Results can be long-lasting with strict daily sun protection, which is essential to prevent post-inflammatory hyperpigmentation and protect your investment.



Choose a clinic where a doctor assesses your skin type and concern first, tailors ablative fractional CO2 settings to your Fitzpatrick type, plans a realistic session series, and actively prevents post-inflammatory hyperpigmentation. You can start by reviewing the approach on our laser treatment page and booking a consultation.
A CO2 laser is an ablative fractional device used for acne scars, wrinkles, texture, enlarged pores, and pinpoint removal of benign lesions. It emits a 10,600-nm wavelength absorbed by water, creating controlled micro-injuries that trigger collagen remodelling. The exact use depends on how a doctor sets the depth and energy for your skin.
CO2 laser can be used on Asian and darker skin, but it needs conservative settings because post-inflammatory hyperpigmentation risk is higher. Studies report PIH in a large share of Asian subjects when settings are aggressive. A careful clinic primes the skin, lowers energy, and enforces strict sun protection to reduce this risk.
Most acne-scar plans need 3 or more sessions spaced several weeks apart, since collagen remodels gradually rather than in one visit. Benign lesion removal is often a single focused session. Your exact number depends on scar depth and skin type, which a doctor confirms at consultation.
CO2 laser is uncomfortable but manageable, and clinics apply topical numbing for about 20 to 30 minutes beforehand. Most patients describe a hot, prickling sensation during the roughly 15 to 30-minute session. Afterward the skin feels warm, similar to sunburn, for a day or so before crusting begins.
Expect around 5 to 7 days of crusting, redness, and mild swelling as the micro-channels heal. Fractional treatment leaves untreated skin between columns, which speeds recovery compared with fully ablative resurfacing. You can compare downtime with gentler options on our laser treatment page.
Surface texture looks fresher once crusting clears in about a week, but the main improvement builds over roughly 3 to 6 months as collagen remodels. Acne scars and wrinkles keep refining across a session series. Your doctor reviews progress between visits and adjusts the plan as your skin responds.
Strict daily sunscreen, sun avoidance, and following your clinic’s aftercare are the most important steps, since sun exposure is a major trigger for post-inflammatory hyperpigmentation. A careful clinic also primes the skin and keeps energy conservative on deeper tones. Your doctor will give written aftercare tailored to your skin type.
Yes, CO2 laser can vaporise many benign lesions like small moles and skin tags in a focused, pinpoint mode after a doctor confirms they are benign. Anything atypical should be assessed and, if needed, biopsied first. You can read more about lesion removal on our dark spot removal page.
Yes, doctors often sequence CO2 laser with treatments like subcision for tethered scars or gentle boosters for skin quality, spaced to avoid over-stressing the skin. Combining is planned individually, not stacked in one visit. A Rejuran healer course is sometimes used alongside to support recovery.
Common temporary effects include redness, crusting, swelling, itching, and a warm sensation for several days, plus a risk of post-inflammatory hyperpigmentation on deeper skin. Rarer risks include prolonged redness or, uncommonly, scarring. A doctor-led assessment and skin-type-matched settings reduce these risks, which is why clinic choice matters.
Adults with atrophic acne scars, texture, wrinkles, or benign lesions who can commit to strict sun protection are often suitable candidates. Active infection, a fresh tan, recent isotretinoin, or keloid history may defer treatment. A consultation grades your skin and confirms whether CO2 laser or a gentler option fits you better.
CO2 laser is ablative and remodels deeper dermis for scars and texture, while picosecond laser mainly targets pigment and tone with minimal downtime. They solve different problems, so a doctor picks based on your goal. You can explore pigment-focused options on our dark spot removal page.
Yes, your Fitzpatrick skin type directly shapes the settings and PIH-prevention plan. Deeper tones need more conservative energy, priming, and closer aftercare to avoid pigment changes. This is why a clinic that assesses skin type carefully, rather than applying one fixed protocol, is the safer choice.
Cost depends on the treated area, scar depth, and how many sessions your plan needs, so a single fixed figure rarely applies. Reberry Clinic is consultation-led, meaning the clinic’s doctors set your transparent cost after assessing your skin. You can begin on our laser treatment page.
For a single CO2 laser session, plan around 5 to 7 days in Seoul so early crusting settles before you travel. A first-day consultation confirms suitability, then treatment follows. Many international patients begin a scar series here and continue on return visits, coordinated by our English-speaking team.
Flying a day after treatment is usually fine, but the skin will still be crusting and sensitive, so cabin dryness and sun exposure need managing. Moisturise, protect the area, and follow aftercare closely. Ideally allow a few days locally so your doctor can check early healing before you leave.
International patients can complete a CO2 laser series across one or more trips, and the clinic offers remote check-ins in English between visits so the plan stays on track. Your treatment notes are kept on file for continuity. You can maintain results with a supportive skin care routine at home.
| Ablative Fractional CO2 | Non-Ablative Fractional | Picosecond Laser | |
|---|---|---|---|
| Energy / mechanism | 10,600-nm ablative light; vaporises micro-columns, deep collagen remodelling | 1540 to 1550-nm light; heats dermis without vaporising surface | Picosecond pulses; photomechanical effect, mainly pigment and mild texture |
| Best for | Deeper acne scars, texture, wrinkles, benign lesion removal | Milder scars and texture on pigment-prone skin | Pigment, tone, and light texture rather than deep scars |
| Pain / comfort | Numbing used; more intense during treatment | Numbing used; generally milder | Numbing used; typically well tolerated |
| Downtime | Around 5 to 7 days of crusting and redness | Shorter, often 1 to 3 days of redness | Usually minimal downtime |
| Results timeline | Builds over months as collagen remodels | Gradual over several sessions | Pigment clears over a series; texture improves slowly |
| Sessions | Often 3 or more for scars | Usually a longer series for equivalent depth | Typically a series for pigment goals |
| Pigment risk consideration | Higher PIH risk on deeper skin; needs conservative settings | Lower PIH risk, favoured for pigment-prone skin | Lower ablative risk; still needs sun protection |
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