Private physician consultation room at Waleerat International Clinic in Bangkok
Lifting device comparison · 2026·4 min read·2026-09-29

Ultraformer MPT vs XERF vs Thermage FLX: one ultrasound, two radiofrequency

In one paragraph

Ultraformer MPT is a focused-ultrasound (HIFU) device. XERF and Thermage FLX are monopolar radiofrequency (RF) devices. That is the real dividing line. We found no study that compares the three head to head, so no source can say which is best. The choice depends on the area, how much laxity there is, and how much discomfort and recovery uncertainty you accept.

Ultraformer MPT
HIFUfocused ultrasound
XERF
MonopolarRF, dual mode
Thermage FLX
MonopolarRF
Head-to-head trial
Nonefound

01The short answer — different physics, no proven winner

Ultraformer MPT delivers focused ultrasound to set depths. The manufacturer lists face cartridges at 1.5, 2.0, 3.0 and 4.5 mm and a mode it says runs 2.5 times faster than normal mode.

XERF and Thermage FLX heat tissue with monopolar radiofrequency and use surface cooling. The published XERF protocol used 6.78 MHz and 2.0 MHz modes by facial zone; Thermage FLX has its own tips, cooling, vibration and calibration.

We found no study that compares Ultraformer MPT, XERF and Thermage FLX head to head. A device name cannot tell you suitability, settings or your own result.

02The three at a glance — what each side has and what is missing

XERF and Thermage FLX are grouped because they share a technology family. The two radiofrequency systems are compared in more detail in our XERF vs Thermage FLX guide.

Evidence-based comparison

How it works

Ultraformer MPT (HIFU)Focused ultrasound delivered at set depths.
XERF and Thermage FLX (monopolar RF)Radiofrequency current heats tissue, with surface cooling.

What the maker or protocol states

Ultraformer MPT (HIFU)Face cartridges at 1.5, 2.0, 3.0 and 4.5 mm, and a mode the maker says runs 2.5 times faster than normal mode.
XERF and Thermage FLX (monopolar RF)XERF: 6.78 MHz and 2.0 MHz modes by facial zone in the cited study. Thermage FLX: its own tips, cooling, vibration and calibration.

Human evidence found

Ultraformer MPT (HIFU)No completed randomized result for Ultraformer MPT. The maker's registered trial of a related model, MPT PLUS, against Ulthera is recruiting.
XERF and Thermage FLX (monopolar RF)XERF: one single-arm study of 39 participants with short follow-up. Thermage FLX: manufacturer information; no head-to-head with XERF.

Regulator record found

Ultraformer MPT (HIFU)The maker's product page states none.
XERF and Thermage FLX (monopolar RF)US FDA 510(k) K251327 lists XERF for electrocoagulation and hemostasis (a technical comparison, no clinical tests submitted). K170758 lists Thermage FLX for wrinkles among its indications.

What this cannot tell you

Ultraformer MPT (HIFU)That it works better or worse than either radiofrequency device.
XERF and Thermage FLX (monopolar RF)That either works better or worse than ultrasound, or than each other.

Found means found when this page was written. A gap is not a finding that a device lacks evidence or clearance elsewhere.

03What the closest research says — and what it cannot

A randomized split-face trial (20 people, 6 months) put monopolar radiofrequency on one side of the face and microfocused ultrasound on the other. Both sides improved, and in this small sample the investigators' laxity scores did not differ significantly between the two approaches.

The trial used other devices, so it says nothing about how Ultraformer MPT, XERF and Thermage FLX rank against each other.

A systematic review of microfocused ultrasound (16 studies, all in women) found treatment moderately painful, with transient redness and sometimes swelling, and rare other effects. It also found results declined with greater laxity and with a BMI above 30.

These are findings about microfocused ultrasound devices in general; the review does not show that they hold for Ultraformer MPT.

04Catalogue prices — by program, not like for like

These are the clinic's standing catalogue prices for named programs, read from the price list and shown only while each price is valid. Each is the price of one program, not a total treatment plan, and a shot on one device is not the same as a shot on another.

For Thermage FLX, the face and neck together do not exceed 900 shots. Treatment of the body starts at 900 shots and goes up; body programs and their prices are in our body contouring comparison.

  • Ultraformer MPT, neck and smiley lift, about 300 shots: ฿14,999
  • Ultraformer MPT, full face and neck, 1200 shots: ฿35,999
  • XERF, 300 shots: ฿25,900
  • XERF, 600 shots: ฿45,900
  • Thermage FLX, face and neck, 600 shots: ฿50,000
  • Thermage FLX, face and neck, 900 shots, the most for face and neck together: ฿65,000

05Questions that decide it — before you choose a device

Start with your concern, not the name on the machine. A physician should connect each proposed zone to an assessed cause and say what would change the plan, including doing less or not treating a zone.

  • Which zones would this device treat, and which would be reduced or skipped?
  • How much laxity do I have, and what is a realistic expectation for my face, given that results declined with greater laxity in the review?
  • What will I feel on the day, what temporary redness or swelling should I expect, and when should I call?
  • What is one shot here: which area, depth or mode, and how many are proposed? Shot counts are not comparable across devices.
  • Can I see the exact device and the tip or cartridge before treatment starts?

Ready to talk to our doctor?

Send a photo or describe your concern on LINE — we'll suggest a treatment plan and price range before you visit.

CHAT ON LINE

06Common questions

Which is better: Ultraformer MPT, XERF or Thermage FLX?+
No study we found compares the three, so no source can name a winner. Ultraformer MPT is focused ultrasound; XERF and Thermage FLX are monopolar radiofrequency. Which one is worth considering depends on your area, laxity and tolerance, after a physician's assessment.
Does one of them hurt less?+
We found no direct comparison of comfort. The microfocused ultrasound review found treatment moderately painful, and sensation with radiofrequency depends on the zone, settings and cooling. Ask what to expect and how to signal a pause.
How long do the results last?+
We found no source that gives a reliable duration for these three devices, so we do not state one. Ask what follow-up the clinic plans and how it will judge your response.
How many Thermage FLX shots can the face and neck have?+
Face and neck together do not exceed 900 shots. Treatment of the body starts at 900 shots and goes up. The physician sets the number for your zones after assessment.
How much do they cost?+
It depends on the program and the number of shots. The catalogue prices section lists the current price of each named program while it is valid. Compare quotes by what they cover, and confirm the price and inclusions in writing before you book.
Should I choose the package with more shots?+
Not from shot count alone. Compare the area, depth or mode, density, exclusions, physician assessment and follow-up.
Can the devices be combined?+
Combination or sequencing should only follow a physician's assessment of the reason, total exposure, prior procedures and recovery plan. More procedures are not automatically better.

08References & further reading

  1. CLASSYS — Ultraformer MPT product pageManufacturer statements on cartridges, depths and modes; the page states no regulatory clearance and cites no clinical paper.
  2. ClinicalTrials.gov NCT07229430 — Ultraformer MPT PLUS versus Ulthera, submental and neckSponsor-registered randomized non-inferiority study of a related model; recruiting at the time of writing.
  3. Dual-frequency noninvasive monopolar radiofrequency for facial laxity and lower face liftingProspective multicentre XERF study of 39 participants with short-term follow-up; not a comparison with Thermage FLX.
  4. FDA 510(k) K251327 — XERFUS substantial-equivalence record including an ex-vivo technical comparison; no clinical tests were submitted.
  5. FDA 510(k) K170758 — Thermage FLX System and AccessoriesUS device clearance record for Thermage FLX.
  6. Randomized split-face trial: monopolar radiofrequency versus microfocused ultrasound with visualization, Dermatologic Surgery 201920 participants, 6 months; no statistically significant difference between sides; other devices than the three compared here.
  7. A Systematic Review of the Efficacy of Microfocused Ultrasound for Facial Skin Tightening16 studies, all in women; treatment moderately painful with transient redness; results declined with greater laxity and BMI above 30.

External sources · last verified 2026-09-29

Available at our branches
Flagship · BTS Siam
Siam Square One

Siam Square One flagship — opposite Siam Paragon, skywalk from BTS Siam Exit 3, in the CBD heart of Bangkok (Pathum Wan). 1-minute walk from BTS.

226/1 Rama 1 Road, 2F, Pathum Wan District, Bangkok 10330 — Siam Square One, opposite Siam Paragon · BTS Siam Exit 3
Walking distance to
  • ●BTS Siam (Exit 3)1m
  • ●Siam Paragon2m
  • ●Siam Discovery3m
  • ●Siam Center3m
  • ●Siam Kempinski Hotel4m
  • ●MBK Center5m
  • ●Chulalongkorn University8m
View on Google Maps →
← Back to journal

Begin with a conversation.

A 30–45 minute physician consultation is complimentary. We'll listen first — discuss your goals, then decide together whether any procedure is right for you.