Gangnam
Dr. Yoongon Ryu
Aesthetic Medicine Specialist
Flagship clinic · KOL for leading lifting & regenerative devices
After the first week of flaking settles, CO2 laser results keep building over roughly 4 to 12 weeks as new collagen smooths acne scars and texture.
CO2 laser before and after results develop gradually: skin is red, swollen and flaking for several days, then smooths as new collagen forms over roughly 4 to 12 weeks. Deeper acne scars improve across 1 to 3 sessions rather than vanishing, so honest photos reflect individual variation by scar type, skin tone and healing, not a promised look.
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A CO2 laser before and after sequence is staged, because ablative fractional resurfacing works in two phases. In the first week the treated skin is red and swollen, then sheds a fine, sandpaper-like layer as the surface renews. Many people who compare their day-one and week-one photos see rougher, flushed skin rather than improvement, which is normal and expected, not a sign the treatment failed.
The real before and after emerges later. As the microscopic columns of controlled injury heal, the skin builds new collagen and elastin over roughly 4 to 12 weeks, and acne scars, enlarged pores and uneven texture gradually soften. This is why an honest before and after is read at several time points rather than only after the redness fades, and why deeper scars keep refining across more than one session.
Reberry Clinic is a dermatology clinic serving international patients across three Seoul-area locations (Gangnam, Myeongdong, Incheon Airport) with English-speaking support. Because CO2 laser is ablative with real downtime and higher pigment risk in darker tones, the clinic’s doctors assess your skin type at consultation, set conservative parameters, and explain a realistic before and after for your own scars rather than copying someone else’s photo.
A CO2 fractional laser emits 10,600 nm light absorbed by water, vaporising tiny columns of tissue while surrounding heat denatures collagen to trigger remodelling. Only about 5 to 30 percent of the surface is treated per pass, so islands of healthy skin speed healing. The before and after depends on how deep and dense the settings are, how many sessions you complete, your scar type, and your skin tone, so two patients with different plans see different change.
Because of this, a CO2 laser result is not a fixed template. The clinic’s doctors may explain when a gentler, non-ablative option such as pigment-focused laser toning better suits your concern, or when a hydrating step such as a Hydrafacial can support recovery between sessions, so the before and after you aim for reflects the right plan rather than a single best-case image.
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The 10,600 nm laser creates microthermal zones across roughly 5 to 30 percent of the skin in 1 session.
Skin is red and swollen, then flakes as it renews, so the first 1 week is not the final result.
As the surface settles, early texture improvement appears while collagen continues to build underneath.
New collagen forms over about 4 to 12 weeks, when acne scars and pores refine most visibly.
Matched before and after photos are best taken at 1 consistent angle and time point for a fair comparison.
See representative outcomes from Reberry Clinic. Results build gradually and vary by individual; your plan is assessed at consultation.
An English-language consultation assesses your scar type and skin tone, sets conservative settings, and explains a realistic before and after.
After 30 to 60 minutes of numbing, the resurfacing pass takes about 15 to 30 minutes depending on the area.
Expect a warm, prickling sensation during treatment and redness, swelling and flaking for several days afterward.
Skin renews in the first week, then smooths as collagen builds across 4 to 12 weeks, when photos are most meaningful.
Strict sun protection and gentle healing care are essential; results from collagen remodelling develop and hold over months.
A CO2 laser before and after typically shows redness and flaking in the first week, then gradually smoother acne scars, pores and texture over 4 to 12 weeks as collagen forms. The change is progressive, not instant. The realistic before and after for your skin is mapped when you discuss laser treatment at consultation.
Results usually look best after about 4 to 12 weeks, once flaking has finished and new collagen has remodelled the skin, even though some early smoothing appears in the first 2 weeks. Reading before and after only right after treatment can mislead. Your review is timed to capture the matured texture change.
In the first week skin is red, swollen and flaking, so it can look worse before it looks better, which is normal. Early smoothing appears around weeks 2 to 6, with the clearest improvement by 4 to 12 weeks. The staged timeline of your before and after is explained during the consultation so you know what to expect.
Results vary because each plan uses different depth and density, and every face starts from different scar depth, skin tone and healing response. Lifestyle and sun habits also matter. This is why an honest before and after notes individual variation, and why your expected change is individualized at the assessment rather than copied from another patient.
Yes, the redness, swelling and flaking of the first several days make early photos look rougher than the final result, so they are not the true outcome. Matched photos at consistent angles after the skin has healed and collagen has built are fairer. The team advises when to take comparison photos so your before and after reflects the settled result.
Improvements are long-lasting because they come from genuine collagen remodelling and resurfaced texture, often holding for years. However, natural ageing and new sun damage continue over time. Daily sunscreen and a good skincare routine help preserve the smoother before and after, which is why aftercare is part of the result, not optional.
No, before and after photos are illustrative of individual cases and never a promise of a specific outcome, in line with honest medical advertising. Each face differs in scar depth, skin tone and healing. Reberry Clinic sets realistic expectations at consultation so your laser treatment goals are grounded in your own skin.
With topical numbing applied beforehand, most patients tolerate the resurfacing pass well, describing a warm, prickling or stinging sensation, with cooling air for comfort. Afterward skin can feel hot and tight like sunburn for several hours. This brief discomfort is part of the recovery seen in honest before and after timelines, and eases within a day.
Downtime is real: several days of redness, swelling and sandpaper-like flaking while skin renews, with most patients presentable using gentle makeup after about 3 to 5 days. Redness can linger longer. Planning a few quiet days helps the before and after settle cleanly, which matters if you have photos or events coming up.
Yes, CO2 laser is often part of a wider plan, though it is spaced apart from other resurfacing to allow healing. Gentle hydration such as a Hydrafacial may support recovery later. The doctor sequences treatments so the skin barrier is never over-stressed at once, protecting the developing before and after.
CO2 laser ablates microcolumns and resurfaces texture, so it treats scars and pores but needs downtime, with a staged before and after. Non-ablative laser toning leaves the surface intact and mainly fades pigment with little recovery. The two before and after timelines differ accordingly, which the clinic’s doctors explain at consultation.
CO2 laser is one of the more effective options for atrophic acne scars because its ablative depth reaches scarring gentler lasers may not, with studies reporting meaningful scar reduction over a series. The before and after builds gradually, and conservative settings are used on darker skin to limit pigment change during healing.
Yes, darker skin tones carry a higher risk of temporary post-inflammatory pigmentation, so conservative settings and strict sun protection are used to keep the before and after even. Experienced parameter selection matters here. Your suitability and the right settings are confirmed during the assessment before any plan is finalized.
Expected effects include redness, swelling, flaking and a sunburn-like feeling for several days, with temporary post-inflammatory pigmentation the most common longer concern, especially in darker tones. Rarely, scarring or infection can occur. Careful technique, aftercare and sun avoidance work to keep the recovery, and the before and after, on track.
Keep skin clean and moisturised, avoid picking flakes, and use strict broad-spectrum sunscreen once the surface allows. Avoid heat, exercise and sun for several days. A gentle supportive routine, such as our skin care options, aids healing, and your doctor provides a written plan to protect the developing result.
Because recovery is visible, staying about 5 to 7 days lets you have the consultation, treatment and an early review while the worst redness and flaking settle. If your schedule is tight, the doctor can adjust intensity. Our English-speaking team helps plan timing so your before and after has room to begin settling.
International patients can complete a CO2 laser plan across one or more visits, and the clinic offers remote check-ins in English to monitor healing and the developing before and after between trips. You can also book gentler maintenance such as ongoing skin care when you return. Your treatment notes are kept on file for continuity.
| CO2 Fractional Laser | Erbium (Er:YAG) Fractional | RF Microneedling | |
|---|---|---|---|
| Energy / mechanism | Ablative 10,600 nm CO2, vaporises microcolumns plus heat | Ablative 2,940 nm erbium, more precise ablation, less heat | Radiofrequency via microneedles, no surface ablation |
| When results show | Builds over 4 to 12 weeks after flaking settles | Builds over several weeks, often shorter recovery | Builds over several weeks |
| Type of change | Deeper scar, pore and texture resurfacing | Lighter resurfacing and finer texture | Scars and laxity with less surface disruption |
| Downtime affecting photos | Several days of redness, swelling and flaking | Usually shorter recovery than CO2 | Redness for 1 to 3 days typically |
| Best for | Deeper acne scars, pores, sun-damaged texture | Lighter resurfacing with quicker recovery | Scars and laxity preferring less surface downtime |
| Sessions | Often 1 to 3 depending on scar depth | Often a series | Often 3 to 4 |
| Cost context | Consultation-led; depends on depth, area and sessions | Consultation-led; depends on area and sessions | Consultation-led; depends on area and sessions |
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