Thermage FLX in Seoul
Thermage FLX® is a non-surgical monopolar radiofrequency treatment that heats the deeper skin layers to tighten existing collagen and trigger new collagen. At Apgujeong EU:GENES Skin Clinic it is planned and performed by a doctor in a single session, with little to no downtime.
- Single session
- Little to no downtime
- Results build over 2–6 months
- English-speaking doctor
What is Thermage FLX?
Thermage FLX® is a leading radiofrequency (RF) skin-tightening treatment designed to improve firmness, soften wrinkles and stimulate collagen production without surgery. Using monopolar RF technology, it delivers controlled heat deep into the skin while the surface is protected by cooling.
Commonly used to:
- Tighten loose or sagging skin
- Soften fine lines and wrinkles
- Improve skin elasticity
- Define the jawline and facial contour
- Stimulate long-term collagen remodelling
Thermage FLX tightens skin by heating the dermis with radiofrequency energy. You may notice some firming right away, but the main result develops gradually over about 2–6 months as new collagen forms. Most patients return to normal activities the same day.
| Treatment type | Non-surgical, non-invasive |
|---|---|
| Technology | Monopolar radiofrequency (RF) with surface cooling |
| Best for | Mild-to-moderate skin laxity, early jowls, crepey skin |
| Session time | About 45–90 minutes, depending on areas |
| Comfort | Warm pulses; topical numbing cream applied |
| Downtime | Little to none; temporary redness is common |
| Results | Gradual, typically over 2–6 months |
| Price from | ₩2,500,000 (600 shots) |
How Thermage FLX works
Unlike lasers that work on the surface, Thermage FLX sends radiofrequency energy into the deeper dermis. The heat acts on collagen in two ways — an immediate contraction and a longer remodelling response.
Deep, even heating
Monopolar RF warms the deeper layers of the skin while a cooling tip protects the surface.
Collagen contraction
Existing collagen fibres tighten in response to heat, which can give a subtle firming effect early on.
New collagen over months
The skin’s healing response builds new collagen, improving firmness and texture over the following months.
What changes after Thermage FLX
Thermage FLX works on skin quality and firmness rather than adding volume. Patients typically describe skin that looks smoother and feels firmer, with a softer jawline and less crepiness around the eyes and neck.
Because results depend on new collagen, improvement continues for several months. Many patients choose to maintain results with a repeat session about once a year, depending on age and skin condition.
Common treatment areas
- Forehead
- Around the eyes
- Cheeks
- Jawline
- Neck
- Lower face
- Overall skin laxity
Who is a good candidate?
- Adults with mild-to-moderate skin laxity
- People who want firmer skin without surgery or downtime
- Early jowls, softening jawline or crepey neck
- Patients maintaining results after a lift or thread treatment
When we may advise waiting or an alternative
- Pregnancy or breastfeeding
- A pacemaker or other implanted electronic device
- Active skin infection, open wounds or inflammation in the area
- Significant sagging that may respond better to a surgical or combined approach
Your doctor confirms suitability after an in-person skin assessment and medical history review. This page is general information, not a diagnosis.
What happens on treatment day
- Consultation Skin assessment with the doctor, goals and shot plan confirmed.
- Preparation Cleansing, numbing cream and a temporary treatment grid on the skin.
- Treatment RF pulses delivered zone by zone with cooling and comfort checks.
- Aftercare Soothing care and home instructions; go about your day.
Aftercare: Mild redness or warmth usually settles within hours. Use gentle skincare and sunscreen, and avoid saunas or intense heat for a few days unless your doctor advises otherwise.
Thermage FLX price in Seoul
Thermage FLX is priced by shot count — the number of RF pulses planned for your face. Eye Thermage is a separate option. All quotes are confirmed in person after your skin assessment.
Full Thermage FLX price guide →All treatment prices →
| Option | Price (KRW) |
|---|---|
| Thermage FLX · 600 shots | ₩2,500,000 |
| Thermage FLX · 900 shots | ₩3,300,000 |
| Eye Thermage FLX · 225 | ₩1,300,000 |
| Eye Thermage FLX · 450 | ₩2,300,000 |
Thermage FLX vs Ultherapy
Thermage FLX uses radiofrequency to tighten and improve skin quality across the surface, while Ultherapy uses micro-focused ultrasound to reach deeper lifting layers. Many patients combine both. Read our full Ultherapy vs Thermage comparison or explore Ultherapy Prime in Seoul.
Your medical team
Dr. Jung Yoo-jin · Medical Director
Physician-led care with 11 years of clinical experience. One dedicated doctor looks after each patient from consultation through treatment, and consultations are available in English.
- Ewha Womans University
- Board-Certified Family Medicine Physician, Hallym University Sacred Heart Hospital
- Former Director, Miracle Dermatology Clinic
- Former Director, PPEUM Clinic (Sinnonhyeon Main Branch)
- Former Director, WOORA Plastic Surgery & Dermatology (Apgujeong)
- Former Medical Director, PPEUM Clinic (Daejeon Branch)
- Former Director, MJ Clinic
- Korea Association of Clinical Aesthetic Medicine
- Korean Association for Laser, Dermatology and Trichology
- Korean Aesthetic Surgery & Laser Society
Also on our team: Dr. Kim Hyeon-gyeong (aesthetic medicine; dermatology observer, Massachusetts General Hospital) and Dr. Gwon Yu-min (board-certified general surgeon).
Meet our doctors →Thermage FLX — frequently asked questions
How long does Thermage FLX last?
Results develop over about 2–6 months as new collagen forms. Many patients maintain them with one session roughly every 12 months, depending on age and skin condition.
Does Thermage FLX hurt?
You will feel warm pulses. A topical numbing cream is applied beforehand and energy levels are adjusted for comfort throughout the treatment.
Is there downtime after Thermage FLX?
Little to none. Temporary redness or mild swelling may occur and usually settles within hours to a day, so most visitors to Seoul can continue sightseeing the same day.
How many shots of Thermage FLX do I need?
Most full-face plans use 600 or 900 shots, depending on face size and laxity. Your doctor recommends a count after assessment — see our Thermage FLX price guide.
Can I combine Thermage FLX with other treatments?
Is Thermage FLX suitable for tourists?
Yes. It is a single-session treatment with minimal downtime, and our English-speaking team can arrange consultation and treatment during your stay.
Sources: manufacturer device/product information and the clinic's own treatment protocol. Reviewed by Dr. Jung Yoo-jin on October 9, 2026.
Plan your Thermage FLX with a doctor
English-speaking, foreigner-friendly care in Apgujeong. Send us a photo and your goals on WhatsApp for a personalised plan and quote.
