
Dr. Yoongon Ryu
Flagship clinic · KOL for leading lifting & regenerative devices

Fine needles deliver radiofrequency heat into the dermis at adjustable depths to remodel collagen, with most patients back to normal in 1 to 3 days.
RF microneedling combines tiny needles with radiofrequency energy: the needles create controlled micro-channels while RF heat is delivered into the dermis to trigger collagen and elastin renewal. It tightens skin, refines texture, and softens scars and pores, with only 1 to 3 days of mild redness afterwards.
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RF microneedling is a minimally invasive treatment that pairs fine microneedles with radiofrequency energy. As the needles enter the skin at a set depth, they deliver focused RF heat directly into the dermis. This combination produces two healing signals at once: the micro-injury from the needles and the thermal stimulus from the RF, both of which prompt the skin to build new collagen and elastin.
Because the depth and energy are adjustable, RF microneedling can be tuned to different concerns and skin areas, from fine lines and enlarged pores to acne scars and mild laxity along the jawline. The energy is concentrated at the needle tips inside the dermis, so the surface is comparatively spared, which is part of why it tends to suit a range of skin tones.
For international patients, the appeal is meaningful improvement with only short downtime. Reberry Clinic serves visitors across three Seoul-area locations (Gangnam, Myeongdong, Incheon Airport), with treatment planned and reviewed by the clinic’s doctors in English.

An RF microneedling device uses an array of insulated or non-insulated microneedles that penetrate to a selected depth, often adjustable across roughly 0.5 to 4 mm or more on body platforms. Once positioned in the dermis, the needle tips emit radiofrequency current that heats the surrounding tissue to a collagen-stimulating range, typically around the 40s to 60s degrees Celsius depending on the protocol. This bulk and point heating contracts existing collagen and triggers neocollagenesis and elastogenesis over the following weeks.
Adjustable depth is the key advantage: shallower passes refine texture and pores, while deeper passes address laxity and the fibrous tissue that supports the skin. Bipolar RF keeps energy contained between needle pairs for precise, controlled remodeling. Because the response is biological, firmness and smoothness build progressively rather than appearing immediately.
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The clinic’s doctors set the depth and energy for your concern, and topical numbing is applied for about 20 to 30 minutes.
An array of fine needles enters the skin to the chosen depth, often between 0.5 and 4 mm.
The needle tips emit radiofrequency that heats the dermis to a collagen-stimulating range in the 40s to 60s degrees Celsius.
Over the next 4 to 12 weeks, fibroblasts produce new collagen and elastin, firming and smoothing skin.
Most plans use a series of 3 sessions spaced about 4 weeks apart for cumulative improvement.

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 texture, scars, and laxity and set the depth and energy, explained in English.
After about 20 to 30 minutes of numbing, the session itself usually takes 20 to 40 minutes.
You can leave the same day; expect mild redness and a warm, sunburn-like feeling for a day or so.
Smoothing and tightening build over 4 to 12 weeks as new collagen forms, with cumulative results across the series.
Effects can last several months to about a year; gentle skincare and sun protection help maintain them.



RF microneedling uses fine needles to deliver radiofrequency heat into the dermis, creating both micro-injury and thermal stimulation that prompt new collagen and elastin. You can read the full device explanation on our InMode RF page. The skin gradually firms and smooths over the weeks following treatment.
Adults with acne scars, enlarged pores, rough texture, or mild laxity are strong candidates, especially those wanting short downtime. Active acne flares or very deep scars may need a different plan. A consultation confirms suitability; you can also compare a tightening option on our Thermage FLX page.
With topical numbing applied beforehand, most patients tolerate the treatment well, feeling pressure and warmth rather than sharp pain during each pass. Sensitive areas can feel more intense for a moment. Any discomfort ends when the session does, leaving a warm, sunburn-like feeling that settles within hours to a day.
Downtime is short, usually 1 to 3 days of mild redness and a warm, tight feeling, sometimes with slight swelling or pinpoint marks. Most patients return to light activities the next day and can wear makeup once redness eases. Deeper or more aggressive settings may extend recovery by a day or two.
Skin may look smoother within a couple of weeks, but the main tightening and scar improvement build over 4 to 12 weeks as collagen forms. Across a series of sessions, results are cumulative. Because the change is gradual and biological, patience gives the most natural-looking and lasting improvement.
Most plans use a series of about 3 sessions spaced roughly 4 weeks apart, since collagen remodeling is cumulative. Scar-focused plans may need more. Your doctor sets the exact number at consultation based on your concern and skin response, and may recommend occasional maintenance later.
Results commonly last several months to around a year, varying with age, skin quality, and lifestyle. Because the treatment stimulates your own collagen, natural ageing continues over time. Many patients schedule maintenance sessions, and a good skin care routine with sun protection helps extend the effect.
Yes, RF microneedling is often paired with ultrasound lifting, skin boosters, or other energy treatments, sequenced safely by your doctor for complementary effects. Some patients combine it with our Sofwave ultrasound lifting. Your treatment plan is tailored so the combined approach matches your skin and timeline.
RF microneedling has a well-documented safety profile when performed by trained operators, with side effects usually limited to temporary redness, swelling, and pinpoint marks. Because energy concentrates at the needle tips in the dermis, the surface is comparatively protected. Your doctor reviews your skin type and history to set appropriate, individualised settings.
Expect mild redness, a warm sunburn-like feeling, slight swelling, and occasional pinpoint marks for a day or two. Bruising is uncommon and self-resolving. Serious complications are rare with an experienced operator and proper settings. Your doctor reviews your medical history and skin type beforehand to keep the treatment safe.
RF microneedling is generally considered suitable across a range of skin tones because the radiofrequency energy heats the dermis at the needle tips rather than targeting surface pigment, which lowers pigmentation risk compared with some lasers. Your doctor still assesses your individual skin type and history to choose safe, appropriate settings for you.
Aftercare is gentle: keep skin clean and hydrated, avoid makeup for about a day, and protect treated skin from sun and intense heat such as saunas for a few days. Use only soothing products your clinic recommends. Written aftercare should be provided so you can follow it confidently once you travel home.
Yes, RF microneedling is widely used for atrophic acne scars, with trials showing scar scores improving substantially over a course, comparable to fractional CO2 laser but with shorter downtime. Several sessions are usually needed for deeper scars. A consultation assesses your scar type; you can also review related options on our skin care page.
A single RF microneedling session needs only 2 to 3 days, allowing for consultation, treatment, and a short period for initial redness to ease. Because downtime is mild, you can pair it with a related option like Sofwave if advised. Our English-speaking team coordinates timing for short visits.
Yes, flying after RF microneedling is generally fine, often within a day or two, since the treatment is minimally invasive with only mild redness and swelling. Stay hydrated during the flight and protect your skin from sun on arrival. If you had a deeper protocol, your doctor will advise the best timing before you travel.
International patients can have remote check-ins in English after returning home, with progress reviewed over the weeks results develop. If you want to complete a series or add complementary care, we coordinate timing for a future visit. Your treatment plan and notes are kept on file for any return appointment.
How RF microneedling compares with two common collagen-stimulating alternatives.
| RF Microneedling | Thermage FLX | Fractional CO2 Laser | |
|---|---|---|---|
| Energy / mechanism | Microneedles plus bipolar RF heat in the dermis | Monopolar radiofrequency (RF), surface delivery | Ablative fractional laser, light energy |
| Best for | Texture, pores, acne scars, mild laxity | Overall skin tightening and contour | Resurfacing, deeper scars, pigment texture |
| Pain / comfort | Numbing used; pressure and warmth during passes | Heating with cooling bursts | Numbing used; heat and stinging |
| Downtime | Mild redness 1 to 3 days | Minimal | Several days of redness and peeling |
| Results timeline | Builds over 4 to 12 weeks | Builds over 2 to 6 months | Visible over 1 to 4 weeks then refines |
| Longevity | Several months to around a year, varies | Around 12 months, varies | Long-lasting, varies |
| Sessions | Usually a series of 3 | Usually 1 session | 1 to 3 depending on goals |
| Cost context | Depends on areas and sessions; confirmed at consultation | Depends on areas treated; confirmed at consultation | Depends on areas and depth; confirmed at consultation |
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