Thermage FLX
Monopolar radiofrequency that tightens the whole dermis

In short
Thermage FLX uses monopolar radiofrequency to heat the dermis evenly while cooling the surface, tightening lax skin, softening wrinkles and smoothing texture across the whole face, including the eye area and neck. A session runs about 45–90 minutes with no downtime, and the result keeps improving for two to six months.
- Session time
- About 45–90 minutes depending on shot count
- Downtime
- No downtime; slight redness for a few hours
- Result & repeat
- Builds over 2–6 months; repeat every 12–18 months
How it works
Radiofrequency passes through the skin and heats the collagen layer, contracting existing collagen fibres immediately and stimulating new collagen afterwards, while the tip sprays cryogen to protect the surface.
What the clinic highlights
- Heats an area rather than points like HIFU, so it focuses on overall smooth tightness.
- Face, eye and body tips are available.
- One session is the standard protocol — no long course required.

Who it suits
- Mild to moderate laxity with fine lines
- Enlarged pores and uneven texture
- Slightly heavy upper eyelids without wanting surgery
Aftercare
- Moisturise well and use sunscreen daily.
- Avoid sauna and hot baths for two to three days.
- Cool compresses help if there is mild swelling.
FAQ
Thermage or Ulthera — which one?
Thermage focuses on overall dermal tightening and smoothness; Ulthera lifts the deep SMAS layer. Many patients combine them for both lift and tightness.
Can it really be done around the eyes?
Yes — there is a dedicated eye tip, used with protective eye shields.
Does the number of shots matter?
Yes. The right shot count for your face size and laxity determines the outcome; the doctor assesses this beforehand.
Related treatments
- Ultherapy PrimeNext-generation focused ultrasound that images the tissue while it treats
- UltheraThe original FDA-cleared HIFU lifting device
- Titanium liftingTriple-wavelength diode laser heating several layers at once
- OndaCoolwaves microwave that targets fat while tightening skin
- SofwaveParallel-beam ultrasound focused on the mid-dermis, with less pain
- Shurink UniverseKorea's popular HIFU — fast shots, wide depth range
Compiled from Lienjang's own treatment pages for educational purposes only; not medical advice.