Two of the most requested lifting treatments in Korea work in very different ways. Here is how Thermage FLX and Shurink Universe compare on results, comfort, how long they last and what they cost in Seoul.
Thermage FLX uses monopolar radiofrequency to tighten the skin and rebuild collagen in the dermis, usually in one session that lasts around 12–18 months. Shurink Universe is a Korean HIFU device that focuses ultrasound deeper, toward the SMAS layer, for a lifting effect that typically lasts 3–6 months and is often repeated. Thermage tends to feel hotter but needs fewer visits; Shurink is quicker and more affordable per session. At Dernia Clinic Myeongdong, Thermage FLX starts from ₩990,000 (300 shots) and Shurink Universe from ₩149,000 (300 shots), excluding 10% VAT.
Prices are in Korean won, exclude 10% VAT and are confirmed by a doctor at consultation.
Thermage FLX vs Shurink Universe: the short version
Both treatments are non-surgical, needle-free and have little or no downtime, which is why international visitors to Seoul often shortlist them together. The difference is the energy and the depth. Thermage FLX uses radiofrequency (RF) heat spread through the dermis, so its strength is tightening and improving skin quality. Shurink Universe uses high-intensity focused ultrasound (HIFU) delivered to set depths, including the firmer support layer under the skin, so its strength is a lifting, contouring effect along the jawline and lower face.
Neither is better for everyone. The right choice depends on whether your main concern is loose, crepey skin or heaviness along the jaw, how long you want results to last between visits, and your budget. For the wider picture, see HIFU vs RF lifting.
How does each treatment work?
Thermage FLX (radiofrequency)
Thermage FLX, made by Solta Medical, sends monopolar RF energy through a single-use tip. The heat makes existing collagen contract and then prompts the skin to build new collagen over several months. The tip cools the surface between pulses, and the system adjusts energy as it reads the skin. Read more on the Thermage FLX treatment page.
Shurink Universe (HIFU)
Shurink Universe is a Korean HIFU device made by Classys. Ultrasound is focused into tiny heating points at fixed depths using different cartridges. Treating the deeper support layer creates a firming, lifting effect, while shallower cartridges can address the skin itself. Because it is efficient and comfortable for many people, it is popular for regular maintenance. See the Shurink Universe treatment page.
Side-by-side comparison
| Factor | Thermage FLX | Shurink Universe |
|---|---|---|
| Energy | Monopolar radiofrequency | High-intensity focused ultrasound |
| Main target | Dermis: tightening and texture | Deeper support layer: lift and contour |
| Best for | Crepey or loosening skin, eyelids, overall firmness | Early jowls, jawline definition, under-chin fullness |
| Session time | 45–90 minutes plus numbing | 20–40 minutes |
| Typical sessions | Usually one, repeated every 12–18 months | One at a time, often repeated 2–3 times a year |
| Results last | Around 12–18 months | Around 3–6 months |
| Downtime | None to minimal | None |
Which gives better results?
They give different results rather than better or worse ones. Thermage is usually chosen for skin that feels thinner, looser or crepey, and it is one of the few devices that can treat the eyelid area with a dedicated tip. Changes appear gradually as collagen rebuilds, with a typical peak around three to six months.
Shurink Universe tends to suit people whose concern is a softening jawline, early jowls or mild fullness under the chin. Some people notice a slight firming soon after, with the main effect building over the following weeks. Because it works deeper, it is often described as a lift rather than a tightening.
Many people in Korea combine the two approaches over time, using RF for skin quality and HIFU for deeper support. Your doctor will suggest one, the other or a combination after examining where your laxity actually sits. See Thermage FLX results and Shurink Universe results for typical timelines.
Which hurts more: Thermage or Shurink?
Comfort varies from person to person, but there are consistent patterns:
- Thermage FLX produces short bursts of deep heat, followed by cooling and vibration. Most people find it uncomfortable but manageable with numbing cream, and the doctor can lower energy in sensitive spots. More detail is in Does Thermage FLX hurt?
- Shurink Universe is generally considered one of the more comfortable HIFU devices. You may feel a pricking heat or a dull ache, especially over bony areas such as the jawline and cheekbones.
For both, numbing cream is applied beforehand, and the treating doctor adjusts settings to your comfort and anatomy.
How long do results last?
Longevity is the clearest practical difference. Thermage results commonly last about 12–18 months after a single session, so many people treat it as a yearly treatment. Shurink results typically last around three to six months, which is why it is often repeated two or three times a year. Lifestyle, sun exposure, weight change and natural aging all affect how long any lifting result lasts. Our guide on how long lifting results last explains this in more detail.
Who is a good candidate for each?
Usually a good fit
- Thermage: mild to moderate laxity, crepey skin, eyelid hooding, one visit a year preferred
- Shurink: early jowls, softening jawline, regular maintenance on a smaller budget
- Adults who want no visible downtime during a Seoul trip
Talk to the doctor first
- Heavy sagging or excess skin, where surgery may be more appropriate
- Pacemakers or implanted electronic devices (especially for RF)
- Pregnancy, active skin infection or open wounds
- Very thin faces, where deep HIFU energy may need caution
Is it safe? Risks and side effects
Both devices have long track records when used by trained medical staff. Common, temporary effects include redness, mild swelling and tenderness over bony areas for a few days. Less commonly, people may notice small blisters or temporary tingling after RF, or bruising, temporary numbness or nerve sensitivity after HIFU. Rarely, too much energy in thin areas can affect facial fat, which is why a doctor should set depths and energy. If you notice blistering, persistent numbness, worsening pain or anything that feels unusual after you leave, contact the clinic promptly so a doctor can review it, even if you have already flown home.
How much do Thermage FLX and Shurink Universe cost in Seoul (2026)?
| Plan | Thermage FLX | Shurink Universe |
|---|---|---|
| 300 shots | ₩990,000 | ₩149,000 |
| 600 shots | ₩1,690,000 | ₩259,000 |
| 900 shots | ₩2,390,000 | ₩349,000 |
Prices are in KRW and exclude 10% VAT. Shots are not equivalent between devices, so compare by coverage, not by shot count. The tourist VAT refund on cosmetic procedures ended on January 1, 2026. Full details: Thermage FLX price and Shurink Universe price.
On a yearly basis the gap narrows: one Thermage session a year can be compared against two or three Shurink sessions. Your doctor will explain both options before you decide.
Planning Thermage or Shurink around your Seoul trip
- Book ahead. Share your dates and concerns through our consultation form so a plan can be suggested before you land.
- Avoid your arrival day. Schedule treatment for day two or later, once you have rested.
- Getting here. Dernia is near Myeongdong Station (Line 4) and Euljiro 1-ga Station (Line 2). See location and directions.
- Flying home. Both treatments have no wounds, so flying the next day is usually fine.
Short on time? Shurink takes less chair time and suits a packed itinerary, while Thermage needs a longer appointment but usually only once a year. Either way, skip saunas and intense workouts for a day or two. Our aftercare guide covers the details in English.
Frequently asked questions
Is Shurink Universe the same as Ulthera or Thermage?
No. Shurink Universe is a Korean HIFU device that focuses ultrasound at set depths, while Thermage FLX uses radiofrequency heat in the dermis. They target different layers and are often used for different concerns.
Which lasts longer, Thermage or Shurink?
Thermage FLX usually lasts longer, commonly around 12–18 months after one session. Shurink Universe results typically last about three to six months and are often repeated.
Which is more painful?
Many people find Thermage hotter and more intense, while Shurink is generally considered comfortable, with some aching over bone. Numbing cream is used for both and energy is adjusted to your comfort.
Can I combine Thermage and Shurink?
Yes, some people combine RF tightening and HIFU lifting, either on the same day or at different times. Your doctor decides whether this suits your skin and how to sequence it.
How much do they cost at Dernia?
Thermage FLX starts from ₩990,000 for 300 shots and Shurink Universe from ₩149,000 for 300 shots, both excluding 10% VAT. Your final plan and price are confirmed at consultation.
Can I fly home the day after?
Usually yes. Neither treatment involves needles or wounds, and most redness fades within hours.
Choosing between Thermage FLX and Shurink in Seoul?
Send us your concerns and travel dates. A doctor examines your skin in person, explains which option suits you in English and confirms your plan and price before treatment.
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This article is for general information and does not replace a medical consultation. Results vary between individuals, and suitability, treatment plan and final price are confirmed by a licensed doctor after an in-person examination. Dernia Clinic Myeongdong does not publish patient testimonials or before-and-after claims.