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Dear Clinic · Procedure Guide · Lifting
Ultherapy vs Thermage in Korea

Ultherapy vs Thermage

Two machines, two depths. Ultherapy Prime places focused ultrasound down to the SMAS at 4.5 mm; Thermage FLX heats the dermis across a whole zone at once. This page sets out what each one does, what each costs in Cheongdam, and how a director decides which layer your face is asking about.

HIFU lift vs RF tightening Ultherapy Prime ₩400,000/100 shots · Thermage ₩2,200,000 Open 365 days
Ask Which One Fits See Pricing
The Short Answer

HIFU at the SMAS, RF through the dermis

Ultherapy Prime is focused ultrasound. Energy is placed on discrete lines at 1.5, 3.0 and 4.5 mm, and the deepest of those is the SMAS — the fibrous layer a surgeon repositions in a facelift — which is why the effect reads as a lift from underneath. Thermage FLX is monopolar radiofrequency and heats the dermis broadly across a zone, firming and smoothing the surface it passes through. The two depths do not overlap. They answer different complaints: a jawline that has dropped, against skin that has gone slack and finely crepey.

Ultherapy Prime carries DeepSEE imaging, so the director watches your layers on screen while treating and can confirm that the 4.5 mm line is landing where the scan said it would; visualisation runs to 8 mm on Prime, against 4.5 mm on the classic unit. Thermage FLX calibrates every pulse with AccuREP and works through a 600-shot tip. Both machines are in this building. What decides between them is the EVE Muse 3D scan: how thick your skin is, and which layer your laxity actually occupies.

Thermage FLX system on castors with the handpiece docked and the brand shown on its screen
Thermage FLX in the clinic — monopolar radiofrequency, calibrated pulse by pulse with AccuREP and delivered through a 600-shot tip.
Side by Side

Ultherapy vs Thermage, compared

Row by row, the two platforms as they are run in Cheongdam. On a phone the table slides sideways while the labels hold their place.

 Ultherapy PrimeThermage FLX
TechnologyHigh-intensity focused ultrasound (HIFU / MFU-V)Monopolar radiofrequency (RF)
MakerMerz AestheticsSolta Medical
Main goalLifting at the deep SMAS layerTightening & texture in the dermis
Depth of actionFocused at 1.5 / 3.0 / 4.5 mm; images to 8 mmDermis, heated broadly across the zone
Signature featureLive DeepSEE imaging — the doctor sees your layers while treatingAccuREP calibration on every pulse; 600-shot full-face tip
Best forGenuine sag — jawline, mid-face descent, dropped elasticityOverall firmness and fine surface crepiness
SensationHeat and deep prickling at depth; topical numbing appliedHeat pulses with brief tightening; cooling & comfort measures
Results buildBuilds as collagen remodels; timing varies by individualBuilds gradually over the following weeks
DowntimePractically none — mild redness settles in daysLittle to none — mild redness settles quickly
Session unitPlanned in 100-shot units from the scanOne 600-shot tip per full-face session
Price at Dear₩400,000 / 100 shots₩2,200,000 / 600 shots
Combined useYes — HIFU lifts the SMAS, RF tightens the dermisYes — sequenced from a single diagnosis

The table sets out what each device does. Which of them goes on your chart is settled after the EVE Muse scan measures your skin thickness and locates the depth of your laxity.

Case by Case

Which sagging pattern points to Ultherapy, which to Thermage

The same person can be a HIFU case at 35 and an RF-plus-HIFU case at 50. Depth decides it. Three patterns cover most faces that come through the consultation room, and the EVE Muse scan places you in one of them.

LEANS ULTHERAPY

Deep sag, dropped contour

A jawline that has softened, a mid-face that has descended, elasticity that has genuinely fallen — concerns rooted in the deep support layer respond to a focused-ultrasound lift more than to surface heating.

LEANS THERMAGE

Firmness & fine crepiness

Skin that reads a little loose or crepey on the surface, without pronounced structural drooping, is usually better served by broad dermal RF tightening than by a deep lift it doesn't yet need.

LEANS BOTH

Sag and surface laxity together

Many faces — often from the mid-forties on — carry both deep descent and surface looseness. Here a sequenced protocol, RF to tighten and HIFU to lift, addresses each at its own depth.

Doctor marking the pre-treatment grid on a patient's face before a Thermage FLX session at Dear Clinic
Doctor marking the pre-treatment grid on a patient's face before a Thermage FLX session at Dear Clinic
Backlit arch mirror with the DEAR mark above a recovery bed at Dear Clinic Cheongdam
Backlit arch mirror with the DEAR mark above a recovery bed at Dear Clinic Cheongdam
The Combination Protocol

Sequencing Thermage FLX and Ultherapy Prime

A face carrying both surface looseness and structural descent has two problems sitting at two depths, and one device reaches only one of them. The usual order here is Thermage FLX first to tighten the dermis, then Ultherapy Prime to lift the SMAS once the first has settled, with the interval written by your director at review. Nothing is stacked to fill out a plan. Where the scan finds a single depth involved, a single device is what goes on the chart.
Thermage FLX to the dermis first, Ultherapy Prime to the 4.5 mm SMAS line second, with the gap set by your director
One EVE Muse 3D scan plans both halves, so the sequence is designed as a single course
If only one depth is involved, we do not recommend adding the second device
Backlit arch mirror with the DEAR mark above a recovery bed at Dear Clinic Cheongdam
Backlit arch mirror with the DEAR mark above a recovery bed at Dear Clinic Cheongdam
Oak-panelled waiting bench with a side table at Dear Clinic Cheongdam
Oak-panelled waiting bench with a side table at Dear Clinic Cheongdam
Dear, Knowhow

How a director picks between HIFU and RF

Ultherapy Prime and Thermage FLX are two of the eight lifting options kept in this building; Density, XERF, Onda, New Titanium, Shurink Universe and thread lifting make up the rest. The scan is what narrows that list to one line on your chart.

01 — THE SCAN

EVE Muse measures where the laxity sits

Three-dimensional capture under five light sources maps skin thickness zone by zone. Deep structural descent points at the 4.5 mm line; surface firmness points at the dermis; both readings together point at a sequence. The measurement is taken before any device is named.

02 — WHEN IT IS NEITHER

Eight lifting platforms, one chart

Sometimes neither machine is the answer. Volume loss in the mid-face reads as sagging in the mirror but responds to filler, and we do not recommend HIFU for it.

03 — DIRECTOR-PERFORMED

Certified devices, and the settings behind them

Dear holds Merz certification for Ultherapy under Dr. Jemin Kim and Dr. Seonhaeng Lee, with the genuine-device plaque on the wall, and Thermage certification for three consecutive years with genuine tips. Those matter more than the plaques suggest. A HIFU line placed at the wrong depth spends shots for nothing or leaves a bruise, and radiofrequency stacked in one spot can burn. Every session here is performed by our directors, who set the depth, the line count and the energy from what the scan showed.

Ultherapy Prime authorized genuine device plaque at Dear Clinic
Genuine-device plaque — authentic Ultherapy Prime, verified.
Thermage certification held by Dear Clinic — genuine device provider
Thermage certification — genuine-device provider, three consecutive years.
Pricing

How much do Ultherapy and Thermage
cost in Seoul?

At Dear Clinic in Cheongdam, Ultherapy Prime runs ₩400,000 (≈ $285) per 100 shots, and a plan is written in 100-shot units from what the scan shows. Thermage FLX is ₩2,200,000 (≈ $1,570) for a 600-shot session, with Eye Thermage covering the eye area at 450 shots. Korean patients and international visitors are quoted from one list. Comparing the two totals is only useful once the scan has said which depth is being treated.
SessionIncludesPrice
Ultherapy Prime — 100 shotsBase unit; plans are built in 100-shot increments for the deep SMAS lines₩400,000 (≈ $285)
Thermage FLX — 600 shotsFull-face dermal tightening through one 600-shot tip, AccuREP calibrated₩2,200,000 (≈ $1,570)
Eye Thermage — 450 shotsDelicate RF for the eye area₩2,200,000 (≈ $1,570)

Published rates as of September 2026. The EVE Muse 3D scan, the director consultation and aftercare guidance are inside every quoted total. Nothing is added to that total once you have approved it.

Caution

The first days after a HIFU or RF session

Redness and warmth show up immediately after either device and fade within hours for most people.
A tender, tight or pulling feeling along the treated lines is common for several days.
Keep away from alcohol, saunas and hot yoga while the heat response settles.
Leave acids, retinoids and abrasive scrubs out of the routine for the first week.
Call the clinic if tenderness, numbness or any mark outlasts a few days; a review is built into every lifting plan.
Medical Team

Five doctors, one standard

Director-performed treatment is a Dear promise — your procedure is planned and performed by the doctors below.

Dr. Jemin Kim — Medical Director and Founder, Dear Clinic
Dr. Jemin Kim
Yonsei University College of Medicine
Medical Director · Founder
Dr. Sanghyun Lee — Director, Dear Clinic
Dr. Sanghyun Lee
Seoul National University College of Medicine
Director
Board-certified · Family Medicine
Dr. Seonhaeng Lee — Director of Aesthetic Medicine, Dear Clinic
Dr. Seonhaeng Lee
Chosun University College of Medicine · Residency, Samsung Medical Center
Director, Aesthetic Medicine
Dr. Daeun Jung — Director, Dear Clinic
Dr. Daeun Jung
Ajou University College of Medicine
Director
Board-certified · Family Medicine
Dr. Woojae Jung — Director of Aesthetic Medicine, Dear Clinic
Dr. Woojae Jung
Seoul National University — B.S. in Medicine
Director, Aesthetic Medicine
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What our patients say

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FAQ

Ultherapy vs Thermage, answered

What is the difference between Ultherapy and Thermage?
Ultherapy Prime is focused ultrasound placed on discrete lines at 1.5, 3.0 and 4.5 mm; the deepest of those is the SMAS, the layer a facelift repositions, so the result reads as a lift from below. Thermage FLX is monopolar radiofrequency that heats the dermis broadly, firming and smoothing the surface. Two depths, two different complaints.
Which is better for a jawline that has dropped, Ultherapy or Thermage?
Ultherapy Prime. A dropped jawline is a deep-layer problem, and focused ultrasound at 4.5 mm is what reaches that layer. Thermage FLX works above it in the dermis, so it will firm the skin over the jaw without moving the structure underneath. Where the scan finds descent and slackness together, the two are sequenced.
Can I have Ultherapy and Thermage together?
Yes, in sequence. Thermage FLX usually goes first to tighten the dermis, and Ultherapy Prime follows to lift the SMAS once the first treatment has settled, with the interval written by your director. Both halves are planned from a single EVE Muse scan. If only one depth is involved, only one device is used.
Which one hurts more, the HIFU or the RF?
They are felt differently. Ultherapy is a deep prickling heat at the instant each line is placed, eased with topical numbing; Thermage arrives as repeated pulses of heat with cooling between shots. Neither needs sedation. Most people go back to work the same afternoon.
How much do Ultherapy and Thermage cost in Seoul?
At Dear Clinic, Ultherapy Prime is ₩400,000 per 100 shots and plans are written in 100-shot units, while Thermage FLX is ₩2,200,000 for a 600-shot session. Eye Thermage covers the eye area at 450 shots. Your total is fixed at the consultation, before anything is switched on.
When do the results show, and how long do they hold?
Ultherapy works by prompting collagen to remodel, so the change accumulates over the weeks after treatment; Thermage tightens gradually across a similar window. How long either holds depends on age, skin quality and lifestyle, and the hospital does not publish a fixed figure. Your director sets the next session at review, from what your skin is showing then.
How is Ultherapy Prime different from the classic Ultherapy machine?
Visualisation reaches 8 mm on Prime against 4.5 mm on the classic unit, so thicker skin can be read properly before energy is delivered. The ultrasound field is twice the size and the display 35% larger, with noise reduction sharpening the image. Treatment also runs about 20% faster.
Is either of them the same as a thread lift?
No. Both are energy treatments that heat tissue so it contracts and rebuilds over time, while a thread lift physically repositions tissue with absorbable threads and shows its change immediately. Some plans combine an energy device with threads, and the scan is what decides.
What are the risks, and who should not have these treatments?
Redness, swelling, bruising and several days of tenderness are the common ones. Temporary numbness or tingling along a nerve branch is less common but does occur, and burns or a hollow where energy has been over-stacked are the rare failures both technologies share. We do not recommend either device over an active skin infection or inflamed acne in the treatment zone, during pregnancy, or where an implanted electronic device sits in the field.
Are the Ultherapy and Thermage devices at Dear Clinic genuine?
Yes. Dear holds Merz certification for Ultherapy under Dr. Jemin Kim and Dr. Seonhaeng Lee, with the genuine-device plaque displayed in the clinic, and Thermage certification for three consecutive years with genuine tips. Counterfeit tips and cartridges cannot hold calibration, which is a safety matter as much as a results one.
Can I be treated on the same day as the consultation?
Usually. The EVE Muse scan and the director consultation take about thirty minutes between them, and both machines are kept ready, so a session can follow the same afternoon once suitability is confirmed. A 600-shot Thermage tip is opened only after you have approved the plan. The clinic is open 365 days a year, weekends and public holidays included.
Do international visitors pay a different price?
No. One published list covers everyone: ₩400,000 per 100 Ultherapy shots and ₩2,200,000 for a 600-shot Thermage session, whether you live in Seoul or fly in for a week. USD figures are shown for reference only, and the KRW total is what settles at the desk.
Consultation

Ask which depth your face needs

Describe what has changed in your face and we will name the layer it is coming from. Answered in English within one business day.

Scientific Evidence

Science behind HIFU lifting and RF tightening — peer-reviewed references

This comparison at Dear Clinic is grounded in peer-reviewed clinical evidence for both technologies — micro-focused ultrasound with visualization (MFU-V) for deep-layer lifting, and monopolar radiofrequency for dermal tightening. The studies below inform the depth selection, treatment planning and safety protocols your director applies after your EVE 3D + AI diagnosis.

All references carry verifiable DOIs from indexed journals, including data on focused-ultrasound tightening in Asian skin — directly relevant to treatment planning at a Seoul clinic.

  1. Suh D et al. Intense Focused Ultrasound Tightening in Asian Skin: Clinical and Pathologic Results. Dermatologic Surgery. 2011. doi:10.1111/j.1524-4725.2011.02094.x
  2. Fabi SG, Massaki A, Eimpunth S, Pogoda J, Goldman MP. Evaluation of microfocused ultrasound with visualization for lifting, tightening, and wrinkle reduction of the decolletage. J Am Acad Dermatol. 2013;69(6):965-971. doi:10.1016/j.jaad.2013.06.045
  3. Khan U et al. A Systematic Review of the Clinical Efficacy of Micro-Focused Ultrasound Treatment for Skin Rejuvenation and Tightening. Cureus. 2021. doi:10.7759/cureus.20163
  4. Suh D et al. Comparative histometric analysis of the effects of high-intensity focused ultrasound and radiofrequency on skin. Journal of Cosmetic and Laser Therapy. 2015. doi:10.3109/14764172.2015.1022189
  5. Fitzpatrick R, Geronemus R, Goldberg D, Kaminer M, Kilmer S, Ruiz-Esparza J. Multicenter study of noninvasive radiofrequency for periorbital tissue tightening. Lasers Surg Med. 2003;33(4):232-242. doi:10.1002/lsm.10225
  6. Araujo AR, Soares VP, Silva FS, Moreira TS. Radiofrequency for the treatment of skin laxity: mith or truth. An Bras Dermatol. 2015;90(5):707-721. doi:10.1590/abd1806-4841.20153605

References are provided for information — outcomes vary by individual and are assessed at your diagnosis.

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