Gangnam
Dr. Yoon-Gon Ryu
Aesthetic Medicine Specialist
Flagship clinic · KOL for leading lifting & regenerative devices · Featured in Authority Magazine (2026)
Most patients need 4 to 6 fractional laser or microneedling sessions spaced about 4 weeks apart, with older white marks often needing more.
Most people need 4 to 6 stretch marks treatment sessions in Korea, spaced about 4 weeks apart, whether fractional laser or microneedling is used. Older white striae usually need more than newer red ones. The number depends on mark age, width, skin tone, and your collagen response, confirmed at consultation.
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For most stretch marks, treatment in Korea is planned as a short course of 4 to 6 fractional laser or microneedling sessions spaced about 4 weeks apart, because each session stimulates collagen and elastin remodelling that then needs several weeks to settle before the next round. Newer red or pink marks (striae rubra) often respond faster and may need fewer sessions, while older white marks (striae alba) usually need the full 4 to 6 or more.
Wide, long-standing, or multiple marks generally need more sessions, since each treatment improves texture and colour by a controlled margin rather than erasing the marks. The 4-week spacing matters: it lets the skin barrier recover and new collagen form, which is why a course is not delivered back to back. The clinic’s doctors review your response after each session and adjust density, depth, and the number of remaining sessions accordingly.
At Reberry Clinic, the session count is consultation-led rather than a fixed package, because mark age, width, and skin tone strongly affect how aggressively treatment can be set and how many passes are worthwhile. International patients are supported in English across three Seoul-area locations (Gangnam, Myeongdong, Incheon Airport), so a plan can be paced around return trips if needed.
Stretch marks are scars in the dermis where collagen and elastin fibres were torn by rapid stretching, so treatment works by triggering controlled micro-injury that rebuilds that damaged tissue. Fractional laser resurfaces tiny columns of skin, treating only about 5 to 30 percent of the surface per pass, while microneedling creates thousands of microchannels; both leave untreated islands between the injured zones so healing is faster and collagen forms over roughly 4 to 12 weeks. This is exactly why a course of sessions works better than one aggressive treatment: each round improves the marks incrementally while keeping downtime and pigment risk manageable.
Because each session builds collagen over several weeks, stacking treatments too closely offers no benefit and raises risk, especially in darker tones where post-inflammatory pigmentation is more likely. Reberry Clinic is a dermatology clinic where energy-based and microneedling resurfacing are performed by the clinic’s doctors, who set conservative parameters and explain when a gentler approach on the laser treatment page may suit your skin.
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The clinic’s doctors grade mark age, width, and skin tone to estimate whether 4, 6, or more sessions fit your goals.
A conservative first pass treats about 5 to 30 percent of the surface, setting a baseline for how your skin responds.
You wait about 4 weeks so collagen forms and the barrier recovers before the next session.
After collagen builds over 4 to 12 weeks, your doctor reviews progress and refines depth for the next 1 or 2 sessions.
Most plans finish within 4 to 6 sessions, while older white marks may run beyond that before maintenance.
See representative outcomes from Reberry Clinic. Results build gradually and vary by individual; your plan is assessed at consultation.
The clinic’s doctors assess mark age, width, and skin tone in English and estimate whether 4 to 6 or more sessions fit your goals.
After 30 to 60 minutes of numbing, each fractional laser or microneedling pass usually takes 15 to 30 minutes depending on the area.
Expect a warm, prickling sensation during treatment and redness with mild flaking for a few days after each session.
Improvement builds over 4 to 12 weeks per session, with older marks fading across the planned course.
Strict sun protection between sessions is essential; your doctor decides if further sessions are worthwhile after reviewing progress.
Most people need 4 to 6 fractional laser or microneedling sessions spaced about 4 weeks apart, with older white marks often needing more. The count depends on mark age, width, skin tone, and your collagen response. The clinic’s doctors confirm your plan after assessment; you can review related options on our laser treatment page.
Each session treats only part of the surface and improves marks incrementally as collagen rebuilds over 4 to 12 weeks, so results accumulate across a course. Stretch marks are dermal scars, and one aggressive treatment cannot rebuild that tissue safely. A spaced series lets skin heal and remodel, which is why 4 to 6 sessions are usually planned rather than one.
Sessions are usually spaced about 4 weeks apart so the skin barrier recovers and new collagen forms before the next pass. Shorter gaps offer no benefit and raise pigment risk, especially in darker tones. Your doctor confirms timing based on how your skin heals, reviewing progress on our laser treatment page options.
Yes, older white marks (striae alba) usually need more sessions than newer red ones, often the full 4 to 6 or beyond, because mature scars remodel more slowly. Newer red marks (striae rubra) tend to respond faster. Your doctor grades mark age at assessment and sets a session count that reflects how established your marks are.
Usually no, because sessions need about 4 weeks between them for healing, so a full course rarely fits one short visit. Many international patients have one session per trip or pace a plan across return visits. Our English-speaking team helps schedule sessions around your travel so each one heals properly.
Yes, darker skin tones use gentler, more conservative settings to limit post-inflammatory pigmentation, which can mean an extra session to reach the same goal. This trade-off favours safety over a single aggressive pass. Your doctor matches depth and density to your tone, so the session count reflects safe parameters for your skin.
Both work across a similar 4 to 6 session course; laser resurfaces more deeply for older marks, while microneedling offers lower downtime for milder ones. Studies show comparable improvement for many cases. Your doctor recommends one, the other, or a combined plan from our laser treatment options based on your mark type and downtime tolerance.
Yes, most sessions have some downtime, usually redness and mild swelling for a day or two, with light flaking after laser passes. Microneedling recovery is typically shorter than laser. Because this repeats with each session, plan social and travel timing around the recovery window when scheduling a multi-session course.
Early softening of colour and texture can appear within a few weeks, but the main benefit of each session builds over 4 to 12 weeks as collagen forms. This is why sessions are spaced and why older marks improve gradually across the course. Your doctor reviews progress before deciding on the next session.
Improvements from a completed course are long-lasting because they come from genuine collagen and elastin remodelling in the dermis. Stretch marks that fade rarely return in the same form, though new weight or growth changes can create new marks. Daily sunscreen and good skincare help preserve your results over time.
Yes, stretch marks treatment is often part of a wider plan, and supportive care is spaced from resurfacing to allow healing. Gentle hydration and barrier care between sessions can aid recovery. Your doctor may sequence treatments alongside our skin care options so the barrier is never over-stressed while you complete a course.
Not always; benefit accumulates across a planned course but plateaus once collagen remodelling is complete, so extra sessions beyond what your skin needs add risk without proportional gain. Your doctor judges when results have peaked and recommends stopping or switching to maintenance. The goal is the right number of sessions, not the most.
Between sessions, keep skin clean and moisturised, avoid picking flakes, and use strict broad-spectrum sunscreen daily, since sun exposure raises pigment risk. A gentle supportive routine, such as our skin care options, aids healing, and your doctor provides a plan to follow before the next session.
Yes, newer red marks often respond well and may need fewer sessions, so treating them earlier can be worthwhile once any underlying cause has stabilised. Red marks still remodel best across a spaced course rather than one pass. Your doctor assesses whether your marks are new enough to benefit from earlier, lighter treatment.
Because recovery is usually mild, staying about 3 to 5 days lets you have a consultation, one session, and settle the initial redness before travelling. If your schedule is tight, your doctor can adjust intensity. Our English-speaking team helps plan each session around your trip dates.
International patients can complete a course across one or more visits, and the clinic offers remote check-ins in English to monitor healing between sessions. You can also book gentler maintenance such as ongoing skin care on return trips. Your treatment notes are kept on file so each session continues the plan.
| Fractional Laser | Microneedling | RF Microneedling | |
|---|---|---|---|
| Energy / mechanism | Ablative or non-ablative laser columns triggering collagen | Fine needles creating microchannels, no heat | Microneedles delivering radiofrequency heat below the surface |
| Typical sessions | Often 4 to 6, older marks more | Often 4 to 6 sessions | Often 3 to 5 sessions |
| Spacing | About 4 weeks apart | About 4 weeks apart | About 4 to 6 weeks apart |
| Best for | Texture and colour of red or white marks | Milder marks and shallower texture | Marks with laxity, less surface disruption |
| Downtime per session | Redness and flaking for a few days | Redness for 1 to 2 days typically | Redness for 1 to 3 days typically |
| Results timeline | Builds over 4 to 12 weeks per session | Builds over several weeks | Builds over several weeks |
| Cost factors | Depends on area, marks, and session count | Depends on area and session count | Depends on area and session count |
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