Gangnam
Dr. Yoon-Gon Ryu
Aesthetic Medicine Specialist
Flagship clinic · KOL for leading lifting & regenerative devices · Featured in Authority Magazine (2026)
Fractional laser and RF microneedling remodel collagen in the dermis, with studies reporting visible improvement over roughly 3 to 5 sessions for striae.
Stretch marks treatment at our Gangnam (Seoul) location combines fractional laser and RF microneedling to remodel collagen and refine the texture and colour of striae. Red, newer marks usually respond faster than older white ones. Most patients need a series of sessions, and Dr. Yoongon Ryu tailors the plan to your skin at consultation.
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Stretch marks, or striae distensae, are linear scars that form when the skin stretches faster than its collagen and elastin can adapt, common after growth spurts, pregnancy, weight change, or bodybuilding. Fresh marks appear reddish or purple (striae rubrae) and mature ones fade to white or silver (striae albae). Because they are a form of dermal scarring, topical creams alone rarely remove them, so in-clinic energy treatments that rebuild collagen are the mainstay of effective care.
At our Gangnam (Seoul) location, stretch marks treatment centres on two evidence-backed modalities: fractional laser, which creates microscopic columns of controlled injury to trigger collagen remodelling, and RF microneedling, which delivers radiofrequency energy through fine needles into the dermis. Both stimulate new collagen and elastin, gradually improving the depth, width, and colour of the marks. Red, newer striae generally respond faster than older white ones.
Care here is consultation-led and international-patient friendly, with full English support. Dr. Yoongon Ryu assesses your stretch mark type, colour, location, and skin tone before recommending a plan, since the right device settings and session count depend on all of these factors. Reberry Clinic serves patients across three Seoul-area locations, so treatment can be planned around your travel to Gangnam, Seoul, Korea.
Stretch marks respond to controlled dermal remodelling rather than surface products. Fractional laser works by fractional photothermolysis: it delivers thousands of microscopic laser columns into the skin, leaving healthy tissue between them so the body repairs quickly while laying down fresh collagen and elastin. This resurfaces the scarred striae and helps blend their texture and tone with surrounding skin. RF microneedling takes a complementary route, driving fine needles to a set depth and releasing radiofrequency energy at the needle tips, which heats the dermis and stimulates neocollagenesis without relying on light absorption, an advantage for deeper or darker skin tones where pigment safety matters. Because each modality reaches the scar differently, they are often combined: studies in Korean patients report higher clinical improvement scores when fractional laser and microneedle radiofrequency are used together rather than either alone. Newer red striae, which still have active blood vessels, tend to improve faster, while mature white striae usually need more sessions. The clinic’s doctors select wavelengths, needle depth, and energy levels to match your skin tone and the maturity of your marks, which is why settings are personalised at consultation.
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Doctors grade your stretch marks across 4 factors (colour, width, depth, skin tone), since red versus white marks and Fitzpatrick type change the plan and settings.
Fractional laser, RF microneedling, or both are selected; Korean studies show combination scores higher than either alone across 3 or more sessions.
Topical numbing cream is applied for about 20 to 30 minutes so the session stays comfortable before energy delivery begins.
Thousands of microscopic laser columns or fine RF needles create controlled micro-injuries in the dermis to trigger collagen remodelling.
Sessions are usually spaced about 4 to 6 weeks apart, and most patients complete a course of roughly 3 to 5 to see meaningful change.
New collagen continues forming for up to 3 to 6 months after the last session, so the final result builds gradually rather than appearing overnight.
See representative outcomes from Reberry Clinic. Results build gradually and vary by individual; your plan is assessed at consultation.
Dr. Yoongon Ryu assesses your stretch mark colour, depth, area, and skin tone, then explains the modality mix and expected session count in English.
After about 20 to 30 minutes of numbing, a session typically takes 20 to 45 minutes depending on the area and devices used.
Stretch marks are treated as a course, usually about 3 to 5 sessions spaced roughly 4 to 6 weeks apart rather than a single visit.
Improvement builds over weeks to a few months as new collagen forms, with newer red marks often responding faster than older white ones.
Results are lasting once collagen remodels, though sun protection and a barrier-supporting routine help maintain the improved texture and tone.
Fractional laser and RF microneedling are the two evidence-backed options, and Korean studies show combining them scores higher than either alone. Rather than a single fix, the right plan depends on your mark colour, depth, and skin tone. You can explore energy options on our laser treatment page.
Stretch marks treatment is provided at our Gangnam (Seoul) location, in the Gangnam-daero area about 2 minutes from Gangnam Station exit 10. Dr. Yoongon Ryu leads care there with full English support. International patients can also be seen across our Seoul-area locations depending on scheduling and the plan agreed at consultation.
Stretch marks can be significantly improved in texture and colour but are a form of scarring, so they are reduced rather than fully erased in one visit. Newer red marks respond better than older white ones. A realistic goal is smoother, less visible striae that blend more naturally with the surrounding skin over a series of sessions.
Discomfort is manageable because topical numbing cream is applied for about 20 to 30 minutes beforehand. Most patients describe a warm prickling or pressure sensation during fractional laser or RF microneedling. Any tenderness settles quickly, and the clinic’s doctors adjust settings to keep the session comfortable while remaining effective for your striae.
Downtime is mild, usually a few days of redness and, with RF microneedling, tiny pinpoint dots that fade quickly. Most people return to normal activities the same or next day. Your doctor advises on gentle skincare, sun avoidance, and when to resume exercise, which matters if the treated area is prone to sweating or friction.
Most patients need a course of roughly 3 to 5 sessions spaced about 4 to 6 weeks apart, though older or extensive white striae can need more. Your exact number depends on mark maturity, area, and how your skin responds. Dr. Ryu reviews progress between visits and adjusts the plan as your collagen rebuilds.
Newer red or purple stretch marks (striae rubrae) generally respond faster because they still have active blood vessels and collagen activity. Older white marks (striae albae) can still improve but usually need more sessions. Treating stretch marks earlier, while they are still reddish, often gives quicker and stronger results over the course.
Yes, with the right modality choice. RF microneedling is often preferred for deeper skin tones because it delivers heat through needles rather than relying on pigment-absorbed light, lowering the risk of pigment changes. Our laser treatment team selects device and settings after assessing your skin tone so it stays safe and effective.
Visible improvement builds gradually over several weeks to a few months as new collagen forms, not immediately after one session. Colour often softens first, followed by smoother texture. Because collagen continues remodelling after your final session, the full result appears over the months following the completed course rather than on treatment day.
Once collagen has remodelled the striae, the improvement is lasting and does not reverse on its own. New marks can still form if the skin stretches rapidly again. A supporting body rejuvenation routine and sun protection help preserve the tone and texture you achieve.
Yes, plans often combine fractional laser and RF microneedling, and supportive skin boosters may be added for hydration and firmness. Your doctor sequences treatments so the skin is not over-stressed. A tailored skin care routine between sessions helps protect the barrier and support collagen while your series progresses.
Cost depends on the treatment area, the modalities combined, and how many sessions your striae need, so it is set individually rather than as a fixed price. Larger areas and combination plans cost more than a small single-modality course. The clinic’s doctors explain your transparent, personalised cost at consultation in English.
Most adults with red or white stretch marks who can commit to a series are suitable candidates. A consultation confirms your mark type, skin tone, and any contraindications such as active infection or recent isotretinoin use. Newer marks and realistic expectations tend to give the most rewarding results, which your doctor discusses openly upfront.
Daily broad-spectrum sunscreen, gentle non-irritating skincare, and avoiding friction or heat on the area for a few days are key. Keeping the skin hydrated supports the healing collagen. A supportive skin care plan helps protect your results, and your doctor tailors aftercare to the modality and body area treated.
For a first session, 2 to 3 days is comfortable, allowing a consultation, the procedure, and a short review. Because stretch marks need a course, many international patients begin in Seoul and continue across return visits. Our English-speaking team helps schedule sessions around your travel and any other treatments planned.
Yes, flying within a day or so is generally fine, as fractional laser and RF microneedling are minimally invasive with only mild redness. Keep the treated skin moisturised and protected from sun during travel. If a larger area was treated, your doctor gives specific aftercare so healing continues comfortably while you fly home.
International patients can complete a stretch marks course across one or more visits, and the clinic offers remote check-ins in English between trips to track progress. You can continue supportive skin care at home, and your treatment notes are kept on file so any return session builds smoothly on your earlier plan.
| Fractional Laser | RF Microneedling | Combination Plan | |
|---|---|---|---|
| Energy / mechanism | Fractional light columns resurface and remodel collagen | Radiofrequency heat via fine needles into the dermis | Both, layered to reach the scar two ways |
| Best for | Textural striae, surface tone blending | Deeper marks and a wider range of skin tones | Moderate to severe or mixed striae |
| Pain / comfort | Manageable with numbing cream | Manageable with numbing; a pressure sensation | Managed with numbing across the session |
| Downtime | Mild redness for a few days | Mild redness and tiny dots briefly | Mild and short, varies by area |
| Results timeline | Builds over weeks as collagen forms | Builds gradually over the series | Often the strongest gradual gains |
| Sessions | A planned series, commonly several | A planned series, commonly several | A course tailored to mark severity |
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