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

Now available at Reberry Clinic, one of Korea’s first clinics to offer the upgraded Thermage FLX platform with the AccuREP energy-management system.
Thermage FLX firms and tightens skin without surgery by delivering monopolar radiofrequency (RF) deep into the dermis, where it heats and contracts existing collagen on contact and triggers fresh collagen over the following months. A single session smooths fine lines, lifts mild sagging and refines contour on the full face, the delicate eye area, the neck and the body. With an integrated cooling and vibration system there is no surgery and no downtime, so international patients can be treated on a short Seoul trip and watch firmness build for up to 6 months afterward.
Thermage FLX is a non-surgical skin-tightening treatment that uses monopolar radiofrequency to heat deep collagen, causing immediate contraction and new collagen over 2 to 6 months. One session suits adults with mild to moderate laxity or wrinkles on the face, eyes, neck or body who want firmer skin with no surgery and no downtime.
One-on-One guidance from a dedicated doctor, ensuring your skin is professionally monitored and treated from start to finish.
Fluent assistance in English, Japanese, and Chinese, making communication clear, respectful and comfortable for international patients.
Over 100,000 patients worldwide have received our personalized dermatological care, highlighting our expertise and reliable results.
Thermage FLX is the upgraded, fourth-generation version of Thermage, a non-surgical skin-tightening treatment that uses monopolar radiofrequency (RF) energy to heat the deeper dermal and subcutaneous layers of the skin. This bulk heating causes immediate contraction of existing collagen fibers and stimulates new collagen production, so skin becomes firmer, smoother and more lifted over the months that follow. It treats the full face, eyes, neck and body to soften fine lines, wrinkles and mild to moderate laxity.
Compared with earlier Thermage, FLX adds the AccuREP algorithm that reads skin impedance and auto-calibrates each pulse, plus a larger 4.0 cm-squared tip that covers about 33% more area per pulse for a faster, more comfortable session. Because RF energy bypasses surface pigment and heats tissue directly, Thermage FLX is suitable across the full range of skin tones, including the deeper Asian phototypes commonly treated at our clinic.
Thermage FLX requires no injections, no incisions and no recovery time. Treatment is performed at Reberry Clinic by the clinic’s doctors, with English-speaking support for international patients across three Seoul-area locations (Gangnam, Myeongdong, Incheon Airport).

Thermage FLX uses monopolar radiofrequency (RF) technology driven by the patented AccuREP algorithm, which measures the skin’s electrical impedance and tunes each pulse so energy is delivered precisely into the dermal and subcutaneous layers. Unlike ultrasound or laser, RF heats tissue by volumetric bulk heating: the deep collagen-rich layers reach a therapeutic temperature of roughly 65-75 degrees Celsius while the surface stays protected.
This controlled deep heat does two things at once. It immediately contracts and tightens existing collagen fibers for a visible firming effect, and it provokes a natural wound-healing response that recruits fibroblasts to build new collagen and elastin over 2 to 6 months. An integrated cooling and vibration system cools the epidermis before, during and after every pulse and uses gentle vibration to disperse the heat sensation, keeping the procedure comfortable while minimizing side effects. The larger 4.0 cm-squared treatment tip covers more area per pulse, shortening the session versus older Thermage devices.
One Reberry Clinic, multiple Seoul-area locations. Pricing & current promotions are listed on each branch's own site — tap a clinic to view pricing & book.
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In Seoul's shopping & tourism heart.
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The newest Reberry Clinic — in Seoul's trend district.
ONE REBERRY CLINIC · MFDS-REGISTERED DEVICES · MULTILINGUAL CARE AT EVERY LOCATION

At Reberry Clinic we have helped clients from around the world firm and tighten their skin with targeted Thermage FLX treatment. Our before-and-after photos reflect individual treatment plans tailored to each person’s anatomy and degree of laxity. Results vary from person to person depending on skin condition, age and the area treated, and are not guaranteed; a consultation is the best way to understand what Thermage FLX can realistically achieve for you.






All of our treatments are available at three convenient Seoul locations: Myeongdong Branch, a city center near popular tourist spots, Incheon Airport Branch, just minutes from the terminals and ideal for travelers seeking quick, accessible care, and Gangnam Branch, located in Seoul’s upscale district, perfect for those looking to combine premium care with shopping and dining.
We provide fair and transparent pricing for all patients, whether local or international, with no hidden charges and no differences based on nationality.
We use the same advanced machines approved by the FDA and offer you high-performance results without the luxury price tag.
Your consultations are conducted personally by our head doctor, ensuring you receive expert guidance, personalized advice, and a high standard of trust.
Receive personalized, top-tier dermatological care at competitive prices to other clinics, combining affordability with excellence.




Thermage FLX, Ultherapy Prime and Sofwave are all non-surgical tightening and lifting options that work at different skin depths — here is how they compare.
| Thermage FLX | Ultherapy Prime | Sofwave | |
|---|---|---|---|
| Energy / mechanism | Monopolar radiofrequency (RF), volumetric dermal heating | Micro-focused ultrasound (MFU-V), targets the SMAS | SUPERB synchronous ultrasound, mid-dermis ~1.5 mm |
| Best for | Overall skin tightening, crepey texture, collagen laxity | Deeper structural lifting of brow, jawline and neck | Fine lines and mild-to-moderate mid-face laxity, all skin tones |
| Pain / comfort | Warm heating pulses with vibration; generally tolerable | Deeper tingling at the SMAS; varies by area | Mild warmth with built-in cooling; comfortable |
| Downtime | None; mild redness for a few hours | None to minimal; occasional short-lived swelling | None; transient redness |
| Results timeline | Gradual over 2-6 months as collagen remodels | Gradual over 2-3 months, continuing toward ~6 months | Gradual over 6-12 weeks |
| Longevity | About 1-2 years, varies with skin and age | About 1-2 years | About 1 year |
| Sessions | Usually 1 session, repeated periodically | Usually 1 session | Often 1 session |
Monopolar radiofrequency (RF), the technology behind Thermage FLX, is supported by more than two decades of peer-reviewed clinical research. In a foundational multicenter study of the Thermage device, blinded review found Fitzpatrick wrinkle-score improvements of at least one point in 83.2% (99/119) of treated periorbital areas, with 61.5% (40/65) of eyebrows lifted by at least 0.5 mm after a single treatment. Histometric work in patients shows the mechanism directly: a single monopolar RF session measurably increases collagen and elastic fibers in the papillary and upper reticular dermis at the 2-month mark. In Asian populations, a prospective study of 30 volunteers with Fitzpatrick skin types III to V reported improvement in lower-facial laxity in all patients immediately after one treatment, with continued gains across 1, 3 and 6 months, and a study of 20 aged faces documented significant firming of the jowls and nasolabial folds from week 4 through week 24 with no burns or scarring. These findings support gradual, collagen-driven tightening, the population most commonly treated at our clinic.
Thermage FLX is a non-surgical skin-tightening treatment that uses monopolar radiofrequency to heat deep collagen, contracting it on contact and building new collagen over 2 to 6 months. It firms the face, eyes, neck and body with no surgery or downtime. See our Thermage FLX page for full details and consultation booking.
Thermage FLX adds the AccuREP algorithm, which reads skin impedance and auto-calibrates each pulse, plus a larger 4.0 cm-squared tip covering about 33% more area per pulse. This makes a session faster and more comfortable than earlier Thermage, while the core monopolar radiofrequency mechanism that heats and rebuilds collagen stays the same.
Thermage FLX suits adults with mild to moderate skin laxity, fine lines or wrinkles on the face, eyes, neck or body who prefer a non-surgical option. It is ideal for early sagging rather than severe sagging, where a surgical lift may suit better. Book a Thermage FLX consultation to confirm suitability for your skin.
Yes. Because Thermage FLX uses radiofrequency rather than light or laser, it does not target pigment and carries no pigmentation-change risk, making it appropriate across all Fitzpatrick skin types, including deeper Asian tones. A consultation still confirms the treatment is right for your specific skin condition and goals.
Most patients feel brief heat or a tingling sensation with each pulse, generally rated mild to moderate. Numbing cream is applied beforehand, and the integrated cooling and vibration system plus the AccuREP energy control significantly reduce discomfort. Any sensation stops as soon as each pulse is delivered, and no recovery period is needed.
There is essentially no downtime. Most people return to normal activities the same day. Mild redness or slight swelling may appear immediately and usually settles within a few hours, though rarely swelling can last up to a week. This makes Thermage FLX convenient for international patients treating during a short stay in Seoul.
Some tightening may show right after treatment, but full results build over 2 to 6 months as new collagen forms. Results from a single session typically last 1 to 2 years, depending on your natural aging, after which a maintenance session every 12 to 24 months is commonly advised to preserve firmness.
Many patients see meaningful improvement after a single session, since Thermage FLX relies on your own gradual collagen production. Depending on your degree of laxity and goals, the clinic’s doctor may suggest an additional session. Most patients then maintain results with a treatment every 12 to 24 months as recommended after assessment.
A full session takes roughly 45 to 90 minutes depending on the area and pulse count, plus a short time beforehand for numbing cream to take effect. Your initial consultation is a separate 60-minute appointment where the clinic’s doctor assesses your skin and plans the number of pulses for your anatomy.
Yes. Thermage FLX is often paired with treatments that add volume or improve skin quality, such as injectable fillers or Rejuran Healer. The clinic’s doctor sequences treatments so timing is safe and each works to its full effect. Your plan is customized during consultation.
Thermage FLX uses monopolar radiofrequency to tighten skin and smooth surface texture, while Ultherapy Prime uses micro-focused ultrasound to lift the deep SMAS layer. Tightening versus lifting goals differ, so many patients combine them. A consultation helps decide which suits your concerns best.
Thermage FLX stimulates your own collagen for gradual, natural firming with no insertion, while a thread lift places absorbable threads for a more immediate mechanical lift. They address sagging differently and are sometimes combined. The clinic’s doctor advises which approach fits your degree of laxity and goals.
Thermage FLX is commonly used on the full face, the delicate eye area, the neck and the body, treating fine lines, wrinkles and mild to moderate laxity. A dedicated eye tip allows safe treatment of eyelids and under-eyes. Your consultation determines which areas and pulse counts will benefit you most for your goals.
Side effects are usually mild and temporary: redness, slight swelling or tenderness that resolve within hours to days. Thermage FLX is generally avoided during pregnancy, over active skin infections, and for patients with a pacemaker or other implanted electronic device. A consultation reviews your medical history for any contraindications before treatment.
No. Thermage FLX strengthens skin by stimulating new collagen beneath the surface rather than removing any layers. The radiofrequency heats the deep dermis while integrated cooling protects the epidermis, so the surface stays intact. Over 2 to 6 months your own new collagen makes skin firmer and more resilient, not thinner.
Aftercare is simple. Keep the skin clean, apply daily sunscreen, stay hydrated and avoid intense heat such as saunas for a day or two if you feel tender. There are no activity restrictions for most people. The clinic’s doctor gives personalized aftercare advice and schedules any maintenance session at your follow-up.
Thermage FLX needs no downtime, so it fits a short visit. We recommend booking a consultation and treatment with a day’s flexibility for any mild swelling. Reberry Clinic offers English-speaking support and three Seoul-area locations, including one at Incheon Airport, convenient for arrival or departure.
RE:BERRY’s Gangnam clinic has a full Thermage FLX treatment guide covering shot counts and recovery.
Thermage FLX, Ultherapy Prime and Sofwave are all non-surgical tightening and lifting options that work at different skin depths — here is how they compare.
| Thermage FLX | Ultherapy Prime | Sofwave | |
|---|---|---|---|
| Energy / mechanism | Monopolar radiofrequency (RF), volumetric dermal heating | Micro-focused ultrasound (MFU-V), targets the SMAS | SUPERB synchronous ultrasound, mid-dermis ~1.5 mm |
| Best for | Overall skin tightening, crepey texture, collagen laxity | Deeper structural lifting of brow, jawline and neck | Fine lines and mild-to-moderate mid-face laxity, all skin tones |
| Pain / comfort | Warm heating pulses with vibration; generally tolerable | Deeper tingling at the SMAS; varies by area | Mild warmth with built-in cooling; comfortable |
| Downtime | None; mild redness for a few hours | None to minimal; occasional short-lived swelling | None; transient redness |
| Results timeline | Gradual over 2-6 months as collagen remodels | Gradual over 2-3 months, continuing toward ~6 months | Gradual over 6-12 weeks |
| Longevity | About 1-2 years, varies with skin and age | About 1-2 years | About 1 year |
| Sessions | Usually 1 session, repeated periodically | Usually 1 session | Often 1 session |
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PULLED LIVE FROM GOOGLE · GANGNAM · MYEONGDONG · INCHEON AIRPORT
Your treatment is planned and performed by experienced, MFDS-registered doctors across our Seoul-area clinics, with multilingual support for international patients.

Flagship clinic · KOL for leading lifting & regenerative devices

Multilingual tourist care beside Myeongdong Cathedral

Fast, effective care 20 minutes from the terminals