Thermage FLX Procedure: Step by Step from Consultation to Going Home

Thermage FLX follows consultation and skin assessment, cleansing and anaesthesia (numbing cream, with built-in cooling and vibration), the treatment itself (about 40–90 minutes depending on shots), then calming care and aftercare instructions.
Medically reviewed by Dr. Lee Da-in, Medical Director, Daybeau Clinic Seomyeon · Last reviewed October 2026

Step-by-step

  1. Consultation: Dr. Lee Da-in reviews your concerns (skin laxity, fine facial lines), medical history, medications and past treatments.
  2. Treatment plan: areas (full face, eyes (eye tip), jawline, neck, body), intensity or dose, and the expected course are explained.
  3. Preparation: cleansing, then anaesthesia — numbing cream, with built-in cooling and vibration.
  4. Treatment: performed with Thermage FLX, taking about 40–90 minutes depending on shots.
  5. Calming and going home: soothing care if needed and aftercare instructions. Downtime: minimal (temporary redness or swelling).

How it works

Thermage FLX delivers 6.78 MHz monopolar radiofrequency evenly across the dermis and the fibrous septae beneath it. Heat contracts existing collagen immediately and stimulates new collagen, supporting tightening and fine-line improvement.

Tell the doctor before treatment

  • Current medications (especially blood thinners or photosensitising drugs)
  • Recent procedures and dates
  • Pregnancy or breastfeeding
  • Pacemakers or other implanted electronic devices

For care after treatment, see Thermage FLX recovery and aftercare.

Medical notice: every procedure can cause side effects such as swelling, bruising, redness, pain, inflammation or pigmentation, and results and their duration vary between individuals. Suitability and method are decided only after a consultation with the doctor. This page is general information, not a diagnosis. Fees follow the clinic's official non-covered fee schedule.

Frequently Asked Questions

How long does Thermage FLX take?

The treatment itself takes about 40–90 minutes depending on shots; consultation and numbing time are added.

Is anaesthesia used for Thermage FLX?

Numbing cream, with built-in cooling and vibration.

Can younger people get Thermage?

Some start once firmness begins to decline, as a preventive approach.

Dr. Lee Da-in

Not sure this is the right treatment?

Send Dr. Lee's team a photo and your travel dates. We'll suggest a plan and a consultation time.

Ask on WhatsApp Call +82 51-925-7890