YAAN Clinic · Gangnam, Seoul, Korea Thermage FLX Skin Tightening in Gangnam, Seoul, Korea

Monopolar radiofrequency that tightens and smooths skin on the face, eyes and body in a single session. Genuine Thermage FLX tips, planned in English by our physicians in Gangnam, with prices published in Korean won.

Book an English consultation → See Thermage FLX prices
Thermage FLX skin tightening at YAAN Clinic, Gangnam, Seoul
  • 45–90 min Session time
  • Little Downtime
  • 1 Session for most
  • 2–6 months Results build
  • ₩1,690,000 300 shots
The short answer

What is Thermage FLX, and is it right for you?

Thermage FLX is a non-invasive skin-tightening treatment using monopolar radiofrequency (RF). It heats the deep dermis evenly, which contracts existing collagen and stimulates new collagen over the following months. The skin surface is cooled throughout to protect it.

At YAAN Clinic in Gangnam, Seoul, it is used for crepey or loose skin on the face, jawline, neck and eyelids, and for fine lines. Most people need one session, results build over 2–6 months, and prices start at ₩1,690,000 for 300 shots.

Medically reviewed by Dr. Choi Won-Tak, Director of YAAN Clinic Updated October 2026 Meet our doctors
Thermage FLX skin tightening at YAAN Clinic, a premium aesthetic clinic in Gangnam, Seoul
Thermage FLX at YAAN Clinic, Gangnam, Seoul
Thermage FLX at a glance
Technology Monopolar radiofrequency (RF), 4th-generation Thermage with AccuREP
Treats Loose or crepey skin, soft jawline, fine lines, eyelid laxity; face, eyes, neck and body
Tips Total Tip 4.0 cm² (face: 300 / 600 / 900 shots) · Eye Tip 0.25 cm² (225 / 450 shots)
Session time About 45–90 minutes, plus numbing
Downtime Minimal; mild redness usually settles within a day
Results Build over 2–6 months; often last a year or more
Price at YAAN ₩1,690,000 (300 shots) · ₩2,190,000 (600 shots) · Eye ₩1,490,000 (450 shots)
Where YAAN Clinic, Bongeunsa-ro, Gangnam-gu, Seoul (Bongeunsa Station, Exit 7)
Thermage generations: third-generation Thermage CPT and fourth-generation Thermage FLX
Thermage FLX is the fourth generation of Thermage, following the third-generation Thermage CPT.
The fourth generation

What is new in Thermage FLX

Thermage has been used for skin tightening for more than two decades. FLX is the current generation, and YAAN Clinic's doctors have worked with Thermage through the third and fourth generations.

  • Larger Total Tip. The 4.0 cm² face tip covers more skin per pulse than the previous 3.0 cm² tip, so sessions are faster.
  • AccuREP. The device measures the skin before each pulse and tunes the energy, for more even delivery across different areas.
  • Comfort. Cooling before, during and after each pulse plus handpiece vibration make the heat easier to tolerate.
  • Dedicated tips. Separate tips for the face, the eye area and the body.
Thermage FLX console screen
System

Thermage FLX console

The FLX platform used for face, eye and body treatments at YAAN Clinic.

Thermage FLX handpiece with AccuREP energy calibration
AccuREP

One handpiece, tuned every pulse

Energy is calibrated automatically to the local skin before each shot.

Honest suitability

Who Thermage FLX suits, and who it doesn't

We would rather tell you what you don't need. These are general guides; your doctor confirms suitability after examining you.

Often a good fit

  • Loose, crepey or thinning skin on the face and neck
  • Soft jawline and early jowling
  • Hooded upper eyelids and fine lines around the eyes (with Eye Thermage)
  • People who want one treatment a year with minimal downtime
  • Mild laxity on the abdomen, arms or thighs ( Body Thermage)
  • Preventive maintenance when early signs of ageing appear

Probably not the first choice

  • Heavy sagging where deeper lifting with Ultherapy Prime or surgery is needed
  • Mainly pigmentation, where pico toning fits better
  • Deep acne scars, where Potenza may help more
  • A pacemaker or other implanted electronic device
  • Pregnancy, or active skin infection in the area
How it works

Radiofrequency, heat with control

Thermage FLX heats a broad volume of tissue evenly while the surface stays cool.

Collagen contraction: heat makes existing collagen fibres tighten, giving some immediate firmness.

Collagen renewal: over 2–6 months the skin builds new collagen, improving firmness and texture.

AccuREP technology: the device tunes energy to each area for even delivery. Each tip is single-use and authenticated, so ask to see your tip before treatment. Compare it with Oligio, a Korean RF alternative.

How Thermage FLX heats the skin Cross-section of skin: the Thermage tip cools the epidermis while radiofrequency energy heats a broad band of the dermis and the fibrous strands in the upper fat layer. Thermage tip · cooling Epidermis Dermis Fat Muscle kept cool broad, even RF heat fibrous strands tighten
Thermage heats the dermis in volume while protecting the surface. Illustration: YAAN Clinic.
Illustration of loosened collagen fibres before Thermage FLX
Before

Loosened collagen

With age, collagen fibres in the dermis become looser and less organised, and skin loses firmness.

Illustration of collagen remodelling after Thermage FLX
After

Collagen remodelling

RF heat tightens the existing fibres and triggers new collagen, giving a denser, firmer network.

What happens during each pulse

Thermage pulse phase 1: tip in contact with skin
Phase 1

Contact

The tip sits flat on the marked grid.

Thermage pulse phase 2: cooling of the skin surface
Phase 2

Cooling

Cooling protects the skin surface.

Thermage pulse phase 3: radiofrequency heating of the dermis
Phase 3

RF heating

Radiofrequency heats the dermis.

Thermage pulse phase 4: alternating cooling and heating
Phase 4

Cool and repeat

Cooling and heat alternate through the pulse.

Diagram of Thermage radiofrequency energy delivered into the dermis
Radiofrequency energy passes through the cooled surface into the dermis.
Tips & shot counts

Thermage FLX tips for face and eyes

Thermage is priced and planned by tip and shot count. The tip is single-use and holds a fixed number of shots.

Thermage FLX Total Tip full-face treatment directionThermage FLX Total Tip 4.0 cm² for the face

Total Tip 4.0 cm² · full face

For skin elasticity, tightness, wrinkles and facial contour on the cheeks, jawline and neck.

300 shots 600 shots 900 shots
Thermage FLX Eye Tip treatment around the eyesThermage FLX Eye Tip 0.25 cm²

Eye Tip 0.25 cm² · eye area

For eyelid laxity, crepey skin and fine lines around the eyes. See Eye Thermage.

225 shots 450 shots
Plan Shots Typical coverage Price
Focused area 300 Lower face or one focused area ₩1,690,000
Full face & neck 600 Cheeks, jawline and neck ₩2,190,000
Intensive 900 Larger faces or denser coverage Ask at consultation
Eye Thermage 450 Upper and lower eyelids ₩1,490,000

Shot numbers are a guide; your doctor sets the plan after examining your skin.

Real patients

Thermage FLX before & after at YAAN Clinic

Photographs of YAAN Clinic patients before and one month after Thermage FLX on the face. Expect firmer skin and a tidier contour, with further change as collagen builds.

Thermage FLX before and after 1 month, front view, YAAN Clinic patient
Before and 1 month after Thermage FLX, front view.
Thermage FLX before and after 1 month, side view, YAAN Clinic patient
Before and 1 month after Thermage FLX, side view.
Thermage FLX before and after 1 month, front view, YAAN Clinic patient
Before and 1 month after Thermage FLX, front view.
Thermage FLX before and after 1 month, profile, YAAN Clinic patient
Before and 1 month after Thermage FLX, profile.

Individual results vary. Photos are of YAAN Clinic patients and are shown for information only. Side effects such as redness, swelling or tenderness can occur.

Your visit

The Thermage FLX procedure step by step

Plan on about 2 hours at the clinic in Gangnam, including consultation and numbing.

3D skin analysis before Thermage FLX at YAAN Clinic
Step 1

3D skin analysis

Imaging of skin condition and laxity gives the doctor an objective starting point.

Personal Thermage FLX treatment plan chart
Step 2

Your personal plan

The doctor charts the areas, tip and shot count on a plan made for your face.

One-to-one Thermage consultation with a doctor at YAAN Clinic
Step 3

1:1 consultation in English

You agree the plan, shot count and price in won before deciding anything.

  1. Consultation & mapping

    A doctor assesses your skin and marks a grid to guide treatment. You agree the shot count and price in English.

  2. Numbing cream

    Topical anaesthetic is applied for about 30–40 minutes.

  3. Thermage FLX treatment

    The doctor passes the tip across the grid with cooling and vibration. You feel brief deep heat with each pulse.

  4. Aftercare

    Mild redness fades within hours. You receive aftercare instructions and can return to normal activities.

YAAN Clinic doctor performing a lifting treatment

Performed by a physician

The doctor who planned your treatment delivers it, adjusting energy area by area.

Private treatment room at YAAN Clinic, Gangnam

Private rooms

Consultation, numbing and treatment take place in private rooms.

Recovery & results

What to expect, month by month

Some tightening shows straight away, with the main change developing as collagen renews.

Day 0–2 Mild redness or slight swelling, usually settling within a day. Make-up the next day.
Week 1–4 Early firmness from collagen contraction. Any tenderness settles.
Month 2–4 New collagen forms; laxity and texture improve.
Month 6 Smoother, tighter skin; usually the peak result.
12 months+ Results often last a year or more. Many repeat yearly.

Aftercare

  • Use gentle skincare and SPF 50.
  • Avoid saunas, jjimjilbang and hot baths for 1–2 days.
  • Skip strong exfoliants and retinoids for a few days.
  • Keep skin hydrated; sun protection and healthy habits help results last.
  • Contact the clinic if you notice blistering, marked swelling or pain that worsens.
Transparent pricing

Thermage FLX cost in Seoul, Korea

Current YAAN Clinic prices in Korean won. Your doctor recommends the option that fits you.

300 shots

Thermage FLX · 300 shots

₩1,690,000

Commonly used for the lower face or a focused area.

600 shots

Thermage FLX · 600 shots

₩2,190,000

Full face and neck coverage.

Eye

Eye Thermage · 450 shots

₩1,490,000

Upper and lower eyelid tightening.

Combination packages are listed at ₩1,790,000 (300 shots + HIFU 500 shots or Onda 30,000 J) and ₩2,500,000 (600 shots + HIFU 1,000 shots or Onda 30,000 J). Confirm the total, VAT and treatment area at consultation. Full details on the Thermage FLX price page and the complete YAAN price list.

What changes the price

  • Shot count. 300, 600 or 900 shots; more shots cover more area or more passes.
  • Tip type. Face, eye and body tips are priced separately.
  • Genuine tips. Each tip is single-use. Ask any clinic to show you the sealed tip and its shot count.
  • Combinations. Adding HIFU or Onda in a package changes the total.
Compare

Thermage FLX vs other lifting devices

Thermage FLX Ultherapy Prime Oligio
Energy Monopolar radiofrequency Micro-focused ultrasound Monopolar radiofrequency
Main target Dermis, broad heating SMAS and dermis, focal points Dermis
Best for Skin tightening and texture Deeper lifting (jowls, brows) Value RF tightening
Feel Deep heat pulses Deep heat and prickling Warmth, often milder
From (YAAN) ₩1,690,000 ₩1,500,000 ₩450,000
Learn more You are here Ultherapy Prime Oligio
HIFU lifting handpiece used in combination with Thermage FLX

Thermage with HIFU lifting

Thermage tightens the skin itself; HIFU and Ultherapy work on the deeper supporting layer. When both skin laxity and deeper descent are present, your doctor may suggest combining them, and YAAN lists Thermage + HIFU packages. Each can also be done on its own.

Compare all options on our non-surgical facelift and skin tightening pages.

Safety

Side effects and risks

Thermage FLX is cleared by the US FDA and approved by Korea's MFDS. It is still a medical procedure and should be planned and performed by a physician using genuine tips.

Tell your doctor about previous lifting treatments, fillers, Botox, implants and any medical conditions so the plan can be adjusted.

Thermage FLX genuine tip authenticity card
You can ask to see your sealed Thermage tip and its authenticity details before treatment.

Common and temporary

  • Redness for a few hours to a day
  • Mild swelling or tingling

Less common

  • Tenderness lasting several days
  • Small bumps or blisters

Rare

  • Burns
  • Surface irregularities or small depressions
  • Temporary altered sensation

Not suitable

  • Pacemaker or other implanted electronic device
  • Pregnancy
  • Active infection in the treatment area
Watch

Thermage FLX on video

Who treats you

Physician-led care in Gangnam

Every Thermage FLX plan at YAAN Clinic is set by a licensed physician, not a sales consultant. Our medical team has more than 14 years of experience in lifting, laser and petite procedures. See the full medical team.

  • Thermage User Advanced Master Course completed
  • Thermage experience across third- and fourth-generation devices
  • Private 1:1 consultation and 3D skin analysis before planning
  • Genuine devices and tips, shown to you on request
Medical reviewer
Dr. Choi Won-Tak
Director, YAAN Clinic
  • Master's programme, Seoul National University College of Medicine
  • Former Clinical Instructor, Seoul National University Hospital
  • Former Visiting Professor, Hanyang University College of Medicine
  • Former Academic Director of Petite Procedures, Korean Society for Laser, Dermatology and Trichology
  • Laser education instructor, Korean Association of Private Practice Physicians
Dr. Choi Won-Tak, physician at YAAN Clinic Gangnam
Dr. Choi Won-Tak
Dr. Giyong Byeon, physician at YAAN Clinic Gangnam
Dr. Giyong Byeon
Dr. Seonggeun Hwang, physician at YAAN Clinic Gangnam
Dr. Seonggeun Hwang
Dr. Dajeong Hyeon, physician at YAAN Clinic Gangnam
Dr. Dajeong Hyeon
Dr. Yoonsik Sung, physician at YAAN Clinic Gangnam
Dr. Yoonsik Sung
For international patients

Planning Thermage FLX on a trip to Seoul

YAAN Clinic building in Gangnam, Seoul, offering Thermage FLX for international patients
YAAN Clinic in Gangnam, Seoul

Book in English

Send your concerns, photos and travel dates through our consultation form, WhatsApp or Instagram. We reply in English and confirm prices in Korean won before you arrive.

Time it around your trip

One session fits into a single visit, and you can usually fly the next day. There is no need to stay for repeat sessions.

Aftercare while travelling

Use gentle skincare and SPF 50. Avoid saunas, jjimjilbang and hot baths for 1–2 days, and skip strong exfoliants for a few days.

Reception lounge at YAAN Clinic in Gangnam, Seoul

YAAN Clinic, Gangnam

5 Deokbong Building, Bongeunsa-ro 82-gil, Gangnam-gu, Seoul. Bongeunsa Station (Line 9), Exit 7.

Private patient lounge at YAAN Clinic, Gangnam

Private lounge

A quiet space to wait, numb and recover, with English support throughout.

10:00–21:00 Monday & Friday
10:00–19:00 Tuesday to Thursday
10:00–16:00 Saturday
Closed Sunday · Lunch 13:00–14:00

See our Gangnam clinic, why patients choose YAAN and the foreigner's guide to skin clinics in Seoul.

FAQ

Thermage FLX questions, answered

How much does Thermage FLX cost in Seoul, Korea?
At YAAN Clinic in Gangnam, Thermage FLX costs ₩1,690,000 for 300 shots and ₩2,190,000 for 600 shots. Eye Thermage (450 shots) is ₩1,490,000. Prices are in Korean won; confirm VAT and the treatment area at consultation.
What is Thermage FLX?
Thermage FLX is the fourth-generation Thermage system, a non-invasive skin-tightening treatment that uses monopolar radiofrequency to heat the deep dermis while cooling the surface. The heat tightens existing collagen and stimulates new collagen over the following months.
Is the Thermage tip genuine?
YAAN Clinic uses genuine Thermage FLX tips. Each tip is single-use, and you can ask to see the tip and its shot count before treatment.
300, 600 or 900 shots: which do I need?
300 shots usually suits a focused area such as the lower face. 600 shots covers the full face and neck. 900 shots is for larger faces or more intensive coverage. The eye area uses a separate Eye Tip, typically 450 shots. Your doctor confirms the plan at consultation.
Does Thermage FLX hurt?
You feel short bursts of deep heat. Numbing cream, built-in cooling and vibration keep it tolerable, and the doctor adjusts energy for comfort.
When will I see results from Thermage FLX?
Some tightening can show straight away as existing collagen contracts. The main improvement builds over 2 to 6 months as new collagen forms.
How long do Thermage FLX results last?
Results often last a year or more, depending on age, skin condition and lifestyle. Many patients repeat once a year.
Is there any downtime after Thermage?
Minimal. Mild redness or swelling usually settles within a day, and most people go back to normal activities immediately.
What are the side effects of Thermage FLX?
Common, temporary effects are redness, mild swelling and tingling. Less common effects include tenderness, small bumps or blisters. Rare effects include burns or surface irregularities. Physician-led treatment, correct energy settings and genuine tips are used to reduce these risks.
Who should not have Thermage?
Thermage is not suitable for people with a pacemaker or other implanted electronic device, during pregnancy, or over active skin infection in the area. Tell your doctor about previous lifting treatments, fillers, Botox and metal implants.
Is Thermage only for sagging skin?
No. It is used both for existing laxity and for preventive maintenance when early signs of ageing appear. The right timing depends on your skin condition.
Thermage FLX or Ultherapy Prime: which is better?
They do different jobs. Thermage FLX tightens the skin and improves texture by heating the dermis broadly. Ultherapy Prime lifts deeper tissue such as jowls and brows with focused ultrasound. They are often combined.
Can Thermage FLX treat the eyes?
Yes. Eye Thermage uses a dedicated 0.25 cm² Eye Tip for crepey or hooded eyelids and fine lines around the eyes.
Can I combine Thermage with other treatments?
Yes. Common pairings include HIFU, Onda and skin boosters. Your doctor plans the order and timing.
Can I fly after Thermage FLX?
Usually yes. There are no incisions, and most travellers can fly the next day. Avoid saunas and hot baths for 1 to 2 days and use SPF 50.
Do the doctors at YAAN Clinic speak English?
Yes. Consultations, treatment plans, prices and aftercare are provided in English at YAAN Clinic in Gangnam, Seoul. You can send questions in advance through the consultation form.
Related treatments

Often considered with Thermage FLX

Lifting

Ultherapy Prime

Deep ultrasound lifting.

 Eyes

Eye Thermage

Tightening around the eyes.

 RF

Oligio

Korean RF tightening.

 Men

Thermage for Men

Tightening for male skin.

 Contour

ONDA Lifting

Microwave contouring.

 Skin quality

Skin Boosters

Rejuran, Juvelook and more.

 Prices

Body Thermage Cost

Body tightening prices.

 Combo

Titanium Lifting

Multi-wavelength lifting.

Explore by concern: Anti-aging Skin tightening Sagging skin Non-surgical facelift

YAAN Clinic · Gangnam, Seoul

Find out if Thermage FLX is what you need

Send your concerns and travel dates. A doctor-led plan and a clear price in won, before you book anything.

Book an English consultation → View all prices

This page is general information, not medical advice. Results vary between individuals, and side effects are possible. Suitability is decided by a physician at consultation.