Thermage FLX in Apgujeong, Gangnam
Thermage FLX is a monopolar radiofrequency treatment that heats the deeper dermis to tighten skin and encourage new collagen. At Live Young Clinic in Apgujeong, Gangnam, the device measures skin resistance in real time so energy can be optimized for each area. It often suits people noticing crepey texture, lost density or mild laxity.
Medically reviewed by Dr. Song Ki-seon
, Chief Director · English-speaking doctor · Updated September 2026
How does Thermage FLX work?
Thermage FLX delivers monopolar radiofrequency energy, which warms a relatively broad volume of tissue in the dermis. This heating causes existing collagen fibres to contract, which can create a sense of tightening, and it also prompts the skin to produce new collagen over time.
A key feature is that the handpiece measures skin resistance in real time. This helps the doctor keep energy delivery consistent and appropriate as they move across areas with different thickness, from the cheeks to the jawline, rather than relying on a single fixed setting for the whole face.
Who tends to benefit from Thermage?
People who come to our Apgujeong clinic for Thermage FLX often describe their skin as looking thinner, less springy or slightly crepey rather than heavily sagging. Radiofrequency acts mainly on skin density and surface tightness, so it can complement or differ from ultrasound options.
- Skin that has lost bounce and density
- Fine crepiness on the cheeks or around the eyes
- Softening contours without major sagging
- Those preferring a gradual, subtle refresh
Planning Thermage FLX with Dr. Song
Every plan starts with Needs Mapping, where Dr. Song examines skin thickness, elasticity and how your expressions move the tissue. A skin analysis device helps document texture. This tells her whether Thermage alone is appropriate or whether pairing it with Ultherapy Prime, LinearZ or a skin booster would address the concern more completely.
The Curated Plan sets out areas and sequence. During Tailored Treatment, Dr. Song performs the procedure herself in a private 1:1 room, adjusting as she goes instead of following a fixed script, and checking in with you about comfort throughout.
Recovery and aftercare
During treatment you feel pulses of heat, balanced by the device's cooling. Afterward, mild redness or warmth is common and usually fades within hours to a day or so. Most visitors continue sightseeing in Gangnam the same day, although experiences vary.
Aftercare generally involves moisturizing, applying sunscreen daily and briefly avoiding hot saunas, intense exercise and alcohol. Tightening often becomes more apparent gradually as collagen renews. Results vary, and your doctor will advise you individually about aftercare and about whether any follow-up is worth considering later.
Choosing a doctor-led clinic in Apgujeong
Live Young Clinic uses genuine FDA- and CE-approved devices, and Dr. Song Ki-seon, with over 10 years of clinical experience, carries out treatments personally. Because she speaks English, international patients can discuss comfort, expectations and travel timing directly. You can reach the clinic before your trip via WhatsApp.
Frequently asked questions
Is Thermage FLX better than Ultherapy?
Neither is simply better. Thermage FLX uses radiofrequency and mainly addresses skin density and tightness, while Ultherapy Prime uses ultrasound to reach the deeper SMAS layer. Dr. Song recommends one, the other or both based on your assessment.
Can Thermage be used around the eyes?
Thermage FLX has handpieces designed for different areas, and the eye area is a common concern. Whether it is appropriate for you depends on your skin and eye anatomy, which the doctor will evaluate at consultation in Apgujeong.
What does Thermage feel like?
Most people feel short pulses of deep heat alternating with cooling. Sensitivity varies by person and area. The doctor adjusts settings while monitoring skin response and will discuss comfort with you before starting.
When will I notice tightening?
Some people feel a mild tightening soon after, while collagen-related improvement develops gradually over the following weeks and months. Results differ from person to person and depend on skin condition and age.
How do I book Thermage as a visitor?
You can message the clinic in English on WhatsApp at +82-10-9052-6024 or call +82-2-517-3338. Share your travel dates and main concerns so the team can arrange a consultation with Dr. Song in Gangnam.
Related in Apgujeong, Gangnam
Book a consultation in Apgujeong, Gangnam
Message us in English on WhatsApp. Dr. Song will review your concerns and suggest only what you need. 2F Bonkyung Building, 208 Apgujeong-ro, Gangnam-gu, Seoul.
Results vary from person to person. This page is general information and does not replace an in-person medical consultation with a doctor.
