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.
How it works
What the maker or protocol states
Human evidence found
Regulator record found
What this cannot tell you
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?
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06Common questions
Which is better: Ultraformer MPT, XERF or Thermage FLX?+
Does one of them hurt less?+
How long do the results last?+
How many Thermage FLX shots can the face and neck have?+
How much do they cost?+
Should I choose the package with more shots?+
Can the devices be combined?+
08References & further reading
- CLASSYS — Ultraformer MPT product pageManufacturer statements on cartridges, depths and modes; the page states no regulatory clearance and cites no clinical paper.
- 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.
- 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.
- FDA 510(k) K251327 — XERFUS substantial-equivalence record including an ex-vivo technical comparison; no clinical tests were submitted.
- FDA 510(k) K170758 — Thermage FLX System and AccessoriesUS device clearance record for Thermage FLX.
- 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.
- 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

