Gangnam
Dr. Yoon-Gon Ryu
Aesthetic Medicine Specialist
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Session count depends on the type: post-inflammatory hyperpigmentation often improves over a short course of 3 to 6 sessions, while melasma is a chronic condition managed with an ongoing series of low-fluence laser toning plus daily care rather than a fixed number.
It depends on the type. Post-inflammatory hyperpigmentation and sun spots often fade over a short course of 3 to 6 sessions. Melasma is chronic and is managed, not cured in a set number, with an ongoing series of gentle laser toning plus topical care and strict sun protection. The clinic’s doctors diagnose your type first before setting a realistic plan.
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Hyperpigmentation is an umbrella term for skin that is darker than normal because of excess melanin, but the causes differ sharply and so does the number of sessions each needs. The main types are post-inflammatory hyperpigmentation (PIH), which follows acne, injury, or irritation; solar lentigines and sun spots from ultraviolet exposure; and melasma, a hormone- and sun-driven condition that forms symmetrical patches, usually on the cheeks, forehead, and upper lip. Many people have more than one type at once. Because the right treatment and realistic session count differ so much between them, a consultation to identify your type comes before any number can be given.
PIH and defined sun spots are usually the most responsive: a course of about 3 to 6 pigment-targeted sessions, often combined with topical brightening, can produce clear improvement. Melasma is different: it is a chronic, relapsing condition, so it is managed rather than resolved in a fixed number of treatments. The mainstay for melasma is low-fluence laser toning, typically delivered as a series of gentle sessions alongside prescribed topicals and rigorous sun protection, with maintenance over time because recurrence is common if care stops.
At Reberry Clinic, care is consultation-led. The clinic’s doctors examine your skin under proper lighting, identify whether your pigmentation is PIH, sun-spot, melasma, or mixed, and then explain in English how many sessions your specific case is likely to need. We support international patients across our operating Seoul locations (Gangnam, Myeongdong) and near Incheon Airport, and you can read more on our dark spot removal page.
The number of sessions is decided by biology, not preference. Pigment-targeted laser and intense pulsed light work by selective photothermolysis: light at a melanin-absorbed wavelength heats and fragments pigment, which the body then clears over days to weeks. For discrete PIH marks and sun spots, this can lighten pigment noticeably within a short course of about 3 to 6 sessions, spaced roughly 3 to 4 weeks apart to let skin heal. Melasma is handled with a gentler tool: low-fluence Q-switched Nd:YAG laser toning uses large-spot, low-energy passes to lighten pigment gradually without provoking the melanocytes, which in melasma are easily aggravated. Because melasma sits in overactive pigment-producing cells that are driven by hormones, heat, and ultraviolet light, aggressive treatment can rebound and worsen it, so toning is delivered as a controlled series, often weekly or fortnightly, and always paired with topical agents and strict daily sun protection. That is why melasma has no fixed session count: it is a long-term management plan, not a one-off clearance. Skin tone also matters. Deeper and Asian skin is more prone to post-inflammatory hyperpigmentation, so doctors often choose gentler settings and more, lighter sessions rather than fewer strong ones, which raises the session count but improves safety. The honest answer to how many sessions is always tied to your diagnosed type, confirmed in person under good lighting.
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The doctor examines your skin under proper lighting to identify which of the 3 main types, PIH, sun-spot, or melasma, is driving your pigmentation.
PIH and sun spots suit pigment-targeted laser or IPL over 3 to 6 sessions; melasma suits gentle low-fluence toning as an ongoing series.
Sessions are spaced roughly 3 to 4 weeks apart for PIH and sun spots, or often 1 to 2 weeks for melasma toning, to protect the skin.
Prescribed brightening topicals and daily SPF 50 support every session, since 1 treatment type alone rarely controls pigmentation fully.
The doctor reviews progress after each session; melasma in particular needs maintenance over time, since recurrence is common without ongoing care.
See representative outcomes from Reberry Clinic. Results build gradually and vary by individual; your plan is assessed at consultation.
The clinic’s doctors examine your skin under proper lighting, identify which of the 3 pigmentation types you have, and explain in English how many sessions your case likely needs.
After a short numbing or preparation period, a laser or toning session typically takes only about 15 to 30 minutes.
PIH and sun spots may crust and flake over 1 to 2 weeks; melasma toning is gentle with little visible change per single session.
Fading builds across the course; PIH and sun spots often clear over 3 to 6 sessions, while melasma improves gradually over a longer series.
Results are supported by daily SPF and topicals; melasma is relapsing, so maintenance sessions over time are usually needed to hold the result.
It depends on the type. PIH and defined sun spots often improve over a short course of 3 to 6 sessions, while melasma is managed with an ongoing series rather than a fixed number. Your type is diagnosed first under proper lighting, and you can explore options on our dark spot removal page.
Because PIH, sun spots, and melasma have different causes and behave differently. PIH and sun spots often respond to a short course of pigment-targeted treatment. Melasma sits in easily aggravated, hormone-driven pigment cells, so it needs gentle toning managed over time. A consultation identifies your type so a realistic session count can be set.
Melasma does not have a fixed session count because it is a chronic, relapsing condition that is managed rather than resolved in one course. Treatment is usually a series of gentle low-fluence toning sessions plus topicals and strict SPF, with maintenance over time. Your doctor sets a long-term plan you can read about on our laser treatment page.
PIH often improves over a short course of about 3 to 6 sessions, especially when combined with topical brightening and sun protection. Because PIH follows acne or irritation, controlling the original trigger is essential so new marks do not form. You can read about supportive options on our acne treatment page.
Because melasma’s pigment cells are easily aggravated by heat, sun, and aggressive laser, which can cause it to rebound and worsen. This is why doctors use low-fluence toning with gentle, controlled passes over a series rather than strong single treatments. The careful approach protects the skin and reduces the risk of temporary post-inflammatory darkening.
Discomfort is usually mild. Pigment laser feels like a light rubber-band snap on each spot, while melasma toning is gentler and often described as a warm tingling. Numbing cream and cooling can be used for comfort. Any stinging settles quickly, and sessions are short, typically finishing within about 15 to 30 minutes.
Downtime is generally minimal, and most people return to daily life the same day. Pigment-laser spots may crust lightly and flake over 1 to 2 weeks, while melasma toning usually leaves only brief redness. Sessions are spaced to let skin recover, so any temporary effects settle well before the next visit.
For PIH and sun spots, sessions are usually spaced about 3 to 4 weeks apart to let the skin heal fully. Melasma toning is often spaced more frequently, around 1 to 2 weeks, because it is gentle. Your doctor confirms the exact interval based on how your skin responds across the course.
Yes, sessions are usually combined with prescribed topical brightening and diligent daily sun protection, since laser alone rarely controls pigmentation fully. Some patients also add a skin-quality treatment for tone and glow. A supportive skin care routine helps maintain results between treatments across the whole plan.
Most healthy adults with PIH, sun spots, or diagnosed melasma are suitable, particularly with commitment to sun protection and topical care. Any atypical-looking pigmented lesion is assessed medically before treatment. A consultation confirms candidacy and a realistic session count via our dark spot removal page.
Common, temporary effects include redness, mild swelling, and light crusting on treated spots for pigment laser, or brief redness after toning. Post-inflammatory hyperpigmentation, a temporary re-darkening, can occur in Asian skin and usually fades with time and sun protection. Serious effects are rare when settings are gentle and treatment is experienced.
Use gentle skincare, avoid picking any crust, apply broad-spectrum SPF 50 every day, and reapply outdoors, since sun is a major trigger for all pigmentation types. Follow any prescribed brightening topicals as directed. Avoid intense heat, saunas, and sunbathing for a few days after each session to protect healing skin and results.
Yes, deeper and Asian skin is more prone to post-inflammatory hyperpigmentation, so doctors often use gentler settings and plan more, lighter sessions rather than fewer strong ones. This raises the session count but improves safety. Your specific skin tone is assessed at consultation so the plan balances effective fading with a low risk of darkening.
Reberry Clinic treats international patients at our operating Seoul locations in Gangnam and Myeongdong, and near Incheon Airport, all with English-language support. The doctor helps you choose the most convenient location for your consultation and course of sessions. You can plan visits around your travel and any ongoing melasma maintenance.
For a first session, 2 to 3 days is comfortable, covering a consultation, the treatment, and a short buffer for any initial crusting. Because a full course, or ongoing melasma management, runs across several sessions, many international patients complete a session per trip or time visits around future travel to Korea.
International patients can start treatment in one visit and receive remote check-ins in English between trips, so healing and progress are reviewed promptly. Remaining sessions and, for melasma, maintenance are timed to future visits to Korea. Continuing topicals, sun protection, and a supportive dark spot removal plan keeps your results on track.
| PIH (Post-Inflammatory) | Sun Spots / Lentigines | Melasma | |
|---|---|---|---|
| Typical cause | Acne, injury, or irritation aftermath | Cumulative ultraviolet exposure | Hormones plus sun and heat |
| Main approach | Pigment care, gentle laser, topicals | Pigment-targeted laser or IPL | Low-fluence laser toning plus topicals |
| Typical sessions | Often a short course of 3 to 6 | Often 3 to 6, spaced weeks apart | Ongoing series, managed not fixed |
| Onset of result | Gradual over the course | Spots flake and fade over 1 to 2 weeks | Gradual, with maintenance |
| Downtime | Usually minimal | Minimal, light crusting on spots | Minimal between toning sessions |
| Recurrence risk | Low once the trigger is controlled | New spots with fresh sun exposure | High if care and sun protection stop |
| Cost factors | Number of sessions and topicals | Number of sessions and device | Ongoing sessions and maintenance |
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