Short answer:
Thermage FLX uses monopolar radiofrequency to heat the deeper dermis while cooling the skin surface. Most people describe short, hot pulses that are uncomfortable but tolerable with numbing cream, and downtime is usually just mild redness for a few hours. Tightening builds over 2–6 months and often lasts a year or more. In Gangnam a session typically costs ₩1,500,000–₩4,000,000 (about $1,070–$2,860), depending on shot count.
How Thermage FLX works
Thermage delivers radiofrequency energy through a single-use treatment tip. The energy heats collagen in the dermis and fibrous septae beneath the skin, causing immediate collagen contraction and then gradual new collagen formation. The FLX generation adds an AccuREP feature that measures skin impedance and adjusts energy pulse by pulse, aiming for more consistent heating. See our Thermage FLX guide.
What Thermage FLX feels like
Each pulse produces a brief burst of deep heat, followed by cooling spray and vibration from the tip that help mask discomfort. Most people rate the sensation as hot and prickly rather than sharp. Bony areas such as the jawline, forehead and around the eyes tend to feel hotter, while the cheeks are usually more comfortable.
A full face and neck session with 600–900 shots can take 60–90 minutes, so comfort management matters.
How Gangnam clinics manage pain
- Topical numbing cream:
applied for 30–60 minutes before treatment.
- Energy adjustment:
the operator tunes the level to a heat you can tolerate while still being effective.
- Feedback scale:
you will often be asked to rate heat from 1 to 4 after pulses.
- Optional pain relief:
some clinics offer oral painkillers, laughing gas or light sedation for high shot counts.
Tell the operator immediately if a pulse feels too hot; overheating can, rarely, cause burns or fat changes.
Recovery timeline
- Same day:
warmth and mild redness for a few hours; most people return to normal activities.
- Days 1–3:
slight swelling or tenderness, especially along the jaw. Makeup is usually fine the next day.
- Weeks 2–4:
early firmness as collagen contracts.
- Months 2–6:
the main tightening result appears, with smoother skin and a firmer contour.
- Month 12 onward:
results often last a year or more; many people repeat yearly.
Shot counts and areas
- 300 shots:
often used for a single area such as the lower face or eyes.
- 600 shots:
a common full-face dose.
- 900 shots:
full face and neck, or a more intensive full-face treatment.
- Eye tip:
a separate tip for upper and lower eyelids to tighten crepey skin.
Thermage FLX price in Gangnam (2026)
A typical session costs ₩1,500,000–₩4,000,000 (about $1,070–$2,860), with many quotes near ₩2,750,000 for a full face. In the US, Thermage FLX typically costs $2,500–$5,000. Ask the clinic to confirm the tip is genuine and new, and to show you the shot counter at the end. See the Thermage FLX cost guide.
Thermage FLX vs Ultherapy
Thermage heats more broadly and superficially for tightening and texture; Ultherapy
focuses ultrasound deeper for lift. Many Gangnam clinics combine them for moderate laxity with crepey skin. Read the combination guide.
Who should be careful
Thermage is generally not done on people with pacemakers or other implanted electronic devices, during pregnancy, or over active skin infection or inflammation. Tell your doctor about metal implants, recent fillers or threads in the treatment area, and any history of keloids or nerve problems.
Frequently asked questions
Is Thermage more painful than Ultherapy?
Experiences vary. Many people find Thermage hot but brief, and Ultherapy more uncomfortable over bone.
Is there downtime after Thermage FLX?
Usually only mild redness for a few hours.
When will I see results?
Gradually over 2–6 months.
How many shots do I need?
Commonly 600 for the face and 900 for face and neck; your doctor will advise.
Can I fly after Thermage?
Yes, usually the same or next day.
How much is Thermage FLX in Gangnam?
Typically ₩1,500,000–₩4,000,000 in 2026.
This article is general information, not medical advice. Suitability, settings and results vary by person. Always consult a licensed doctor and get an itemised written quote before treatment. Prices are typical 2026 Gangnam planning ranges at about 1 USD = ₩1,400 and change often. Updated October 2026.
