Thermage FLX in Seoul β€” Solta Medical Β· AccuREP Technology

Solta Medical Β· AccuREP Technology

Thermage FLX in Seoul

Thermage FLX (manufactured by Solta Medical) is the current gold-standard device for non-invasive monopolar radiofrequency skin tightening, with over two decades of peer-reviewed clinical evidence. The FLX platform introduces AccuREP technology β€” real-time tissue impedance feedback that auto-adjusts energy per pulse β€” plus Comfort Pulse vibration for significantly improved patient comfort versus earlier generations. Monopolar RF heats the deep dermis and subcutaneous layer to 65-75Β°C, producing both immediate collagen contraction and progressive neocollagenesis over 3-6 months.

Board-Certified

Dermatologist

AAD International Fellow

IFAAD

FDA-cleared

Where applicable

MFDS-registered

Korean MoH&W

Dr. SangYoul Yun
Reviewed personally by Dr. SangYoul Yun
Board-certified Dermatologist Β· AAD International Fellow (IFAAD) Β· IFAAD-verified
01

Overview

Thermage FLX in Gangnam, Seoul. AccuREP real-time feedback, Comfort Pulse, board-certified dermatologist. Over two decades of clinical evidence.

Best for

  • skin firmness and mild laxity
  • patients wanting a tightening-focused plan
  • patients comparing Thermage with Ultherapy or boosters

Suited for

  • patients who prefer a conservative anti-aging plan
  • patients focused on firmness over dramatic change
  • travelers looking for non-surgical maintenance care in Seoul
Thermage FLX β€” session summary
ItemDetails
Treatment timeabout 35 minutes
Pain & comfortBrief warmth during energy delivery; AccuREP feedback and Comfort Pulse vibration improve comfort versus earlier generations
DowntimeNone β€” all daily activities resume immediately; mild redness resolves in 1-2 hours
Onset of resultsEarly collagen remodeling from ~1 month; visible lifting and contouring improvement at ~3 months
Duration & maintenancePeak result at 3-6 months; visible firmness often 12-24 months with annual maintenance
Ultherapy vs Thermage at a glance
CategoryUltherapy PrimeThermage FLX
MechanismMicrofocused ultrasound (MFU-V) β€” 1.5 / 3.0 / 4.5 mm targeted layersMonopolar radiofrequency (RF) β€” 2-4 mm deep dermis
Best-suited areasLifting of the jawline, brow, and neckJawline definition and overall skin firmness
Treatment time20-30 minabout 35 min
DowntimeNone β€” mild tenderness along the jawline possible for 1-3 daysNone β€” mild redness resolves in 1-2 hours
Duration & maintenanceVisible results typically ~6-9 months; maintenance session every 6-9 monthsVisible firmness often 12-24 months; annual or biennial maintenance

Does Thermage hurt?

Patients typically feel brief warmth while each radiofrequency pulse is delivered. Thermage FLX adds AccuREP real-time impedance feedback and Comfort Pulse vibration, which significantly improve comfort compared with earlier generations. Mild redness after the session usually resolves within 1-2 hours, and makeup is fine immediately.

How many Thermage sessions do I need?

A single session is typical β€” most patients have one Thermage FLX treatment per year for maintenance. Tightening develops gradually over 2-6 months as new collagen rebuilds, so the dermatologist assesses your result before planning any further session rather than scheduling a fixed series upfront.

What is the downtime after Thermage?

There is no downtime. Mild redness may appear for 1-2 hours, makeup is fine immediately, and all daily activities β€” exercise, cleansing, regular skincare β€” resume the same day. Daily broad-spectrum SPF 30+ is recommended over the following weeks to protect the remodeling collagen.

Who is a good candidate for Thermage?

Thermage fits patients focused on skin firmness and mild laxity who prefer a conservative, tightening-first plan over dramatic change. It does not replace fillers or skin boosters β€” volume and texture are different problems β€” so the dermatologist confirms in consultation that tightening is the right first priority.

Duration

about 35 min

Sessions

Typically 1 / year

Downtime

None

Peak result

3-6 months

02

Timeline

  1. Same day

    Subtle tightening visible. Mild redness resolves in 1-2 hours.

  2. 1 month

    Early collagen remodeling begins.

  3. 3 months

    Visible lifting and contouring improvement.

  4. 6 months

    Peak result.

  5. 12 months

    Maintenance session recommended.

03

Devices

Thermage FLX monopolar RF skin tightening device with FLX Total Tip

Thermage FLX

Solta MedicalFDA-cleared, CE-marked

Key specs

Technology
Monopolar radiofrequency (RF)
Depth
2-4 mm deep dermis
AccuREP real-time impedance feedback
Comfort Pulse vibration for comfort
Treatment time
about 35 min
Sessions
1 per year for maintenance
04

Process

  1. 01

    Skin quality and laxity goals are reviewed in consultation.

  2. 02

    The dermatologist determines whether tightening should be the first priority or combined with other care.

  3. 03

    The treatment plan is explained with recovery expectations before treatment.

  4. 04

    Follow-up planning is discussed based on maintenance goals.

β€œInjectables and energy devices are performed by physicians β€” never delegated to non-physician staff. The clinic is led by a board-certified dermatologist.”

β€” Dr. SangYoul Yun Β· Clinic Director Β· Board-Certified Dermatologist Β· AAD IFAAD
05

Before / After

Before
After
Thermage FLX tightening
πŸ”’ Photos published only with prior written consent. Anonymized by default. You may revoke consent at any time.

Cases shown are Fitzpatrick III–IV (East Asian skin). Results in lighter (I–II) or darker (V–VI) skin types may differ β€” discussed at consultation.

06

Aftercare

  1. First 1-2 hours

    Mild redness possible. Makeup OK immediately.

  2. Day 1 onward

    Zero downtime. Resume all daily activities.

  3. Week 1-12

    Daily SPF 30+ to protect remodeling collagen.

  4. Annual

    Schedule maintenance at 12 months.

07

FAQ

Does Thermage replace fillers or skin boosters?

No. Tightening, skin quality, and volume are different problems, even if they show up at the same time.

Why do some people compare Thermage and HIFU so often?

Because they are both non-surgical anti-aging treatments, but they are not interchangeable in every face.

What is the difference between Thermage FLX and Ultherapy in Seoul?

Thermage FLX uses radiofrequency to tighten skin from the surface down, while Ultherapy uses focused ultrasound for deeper tissue lifting. A dermatologist often recommends one or both based on your skin laxity pattern.

Is Thermage good for sagging skin and jawline laxity?

Yes. Thermage FLX is particularly effective for overall skin firmness, jawline definition, and collagen remodeling. Results develop over 2–6 months as collagen rebuilds.

How many shots are usually used for Thermage in Seoul?

A full-face Thermage treatment typically uses 600 shots. Your dermatologist adjusts the shot count and energy level based on skin thickness and treatment area.

How long do Thermage FLX results last?

Tightening typically develops gradually over 2–6 months as new collagen rebuilds, and many patients maintain visible firmness for 12–24 months. Duration varies with age, sun exposure, and daily skincare routine. Annual or biennial maintenance is common, with some patients alternating Thermage with Ultherapy on a longer cycle.

Is Thermage FLX safe? What are the typical side effects?

Thermage FLX is FDA-cleared (510(k) K170758, 2017) and CE-marked. Common short-term effects include mild redness for a few hours and brief warmth during energy delivery. AccuREP real-time impedance feedback and Comfort Pulse vibration significantly improve comfort versus earlier generations. Serious effects are rare when performed by a board-certified dermatologist using authentic Solta-supplied tips. Medical history and active skin conditions are reviewed before treatment.

How much does Thermage FLX cost at Delight Dermatology in Seoul?

Standard Thermage FLX at Delight Dermatology is in the range of approximately β‚©1,500,000 to β‚©3,000,000. The final quote depends on tip type (Face / Body / Eye) and the area treated, assessed during in-person consultation. Eye Thermage is quoted separately.

How can international patients book a Thermage FLX consultation?

International patients can request a consultation via the online booking form, or message via Instagram (@delight_gangnam), KakaoTalk, or LINE. On-site interpreter assistance is available for Mandarin Chinese and other languages with prior arrangement. Delight Dermatology is registered with the Korean Ministry of Health and Welfare for foreign-patient services (Foreign Patient Medical Institution Registration #357-15-02460). Initial consultation is complimentary.

Notice

Tell the dermatologist at consultation if any of the following apply.

  • Pacemakers or other implanted electronic devices
  • Implanted metal or electronic devices in the treatment zone
  • Active skin infections or open wounds in the target area
  • Pregnancy (not studied β€” avoid as precaution)

For your visit

  • This category often fits better than more aggressive procedures for shorter travel windows.
  • If your main concern is pigmentation or scarring, do not assume tightening alone is the answer.
08

References

The clinical claims on this page β€” device specs, efficacy timelines, safety profile β€” are supported by the primary sources below. Each citation links to the original paper or regulatory record.3 refs
  1. [1]Energy-Based Device Treatments for Facial Skin Laxity: 45-Trial Systematic Review. Aesthetic Surgery Journal (Haykal et al.) (2025).
  2. [2]Thermage FLX System 510(k) Clearance (K170758). U.S. Food & Drug Administration (510(k) K170758) (2017).
  3. [3]Burn Rates and Adverse Events in RF-Based Skin Tightening: Systematic Review. Dermatologic Surgery (Rossi et al.) (2019).
Reviewed byDr. SangYoul YunΒ· Board-Certified Dermatologist Β· AAD International Fellow (IFAAD) Β· Thermage TTT MasterΒ· Last reviewed 2026-06-12

Related procedures

Notice: Individual results may vary depending on skin condition, treatment history, and recovery factors. All treatment plans are determined through individual consultation with a board-certified dermatologist. The information on this page is for reference only and does not constitute medical advice or guarantee specific outcomes.

Next Step

Not sure if lifting is the right route? A short message about your jawline or skin-laxity concerns gets you an honest read on Thermage FLX before you book.

Even a short first message can help you check suitability, timing, and what to compare next before you book.

Gangnam, Seoul

Personalized dermatology care in Gangnam for local and overseas patients.

Delight Dermatology Clinic focuses on doctor-led consultation, warm service, and personalized treatment planning.

Walking videos

Nonhyeon Β· Exit 4
Sinnonhyeon Β· Exit 2
Clinic

Delight Dermatology Clinic

4th Floor, Building B, 509 Gangnam-daero

Seocho-gu, Seoul, South Korea

Parking is available in the building.

02-517-9991

Mon - Fri: 10:00 - 20:00

Lunch break: 13:00 - 14:00

Saturday: 10:00 - 16:00

Sunday and public holidays: Closed

Location

Gangnam Β· Seocho-gu, Seoul

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Officially registered by the Ministry of Health and Welfare of the Republic of Korea (Reg. No. M-2024-01-08-8248) Β· μ™Έκ΅­μΈν™˜μž μœ μΉ˜μ˜λ£ŒκΈ°κ΄€

Medical information on this site is for reference only and does not constitute medical advice. Individual results may vary. Consult a board-certified dermatologist for diagnosis and treatment planning.