Private physician consultation room at Waleerat International Clinic in Bangkok
Monopolar RF decision guide · 2026·9 min read·2026-08-17

Program XERF vs Program Thermage FLX: choose by goal, not by hype

In one paragraph

Program XERF and Program Thermage FLX both use non-invasive monopolar radiofrequency, but they are different systems. Program XERF uses 6.78 MHz and 2.0 MHz modes in its published protocol, while Program Thermage FLX has its own tips, cooling, vibration and calibration. No direct randomized clinical trial currently establishes one as the universal winner.

Shared category
MonopolarRF
Program XERF
6.78 + 2.0MHz modes
Program Thermage FLX
Tips + coolingsystem protocol
Direct clinical comparison
Noneidentified

01The short answer — there is no universal winner

Program XERF is now available at Waleerat Clinic by consultation. Care begins with a physician assessment of the skin, previous procedures, areas of concern and timing.

The device name alone cannot determine suitability, settings or an individual outcome.

Program XERF and Program Thermage FLX belong to the same broad monopolar RF category, but their hardware and protocols are not interchangeable. The useful question is not which logo is better.

It is which treatment map, settings, comfort plan and follow-up best match the assessed concern.

The published XERF human study was single-arm and short-term. It did not randomize participants against Program Thermage FLX.

Technical or ex-vivo comparisons should not be presented as proof of better clinical results for every patient.

02Same energy family — different delivery systems

Both systems send monopolar RF current between a treatment electrode and a return path, converting electrical energy into heat within tissue. Surface cooling and full tip contact are important parts of controlled delivery.

In the published Program XERF protocol, the device used 6.78 MHz and 2.0 MHz modes selected by facial zone. Program Thermage FLX uses its own treatment tips, cooling blasts, vibration and AccuREP calibration.

A frequency or depth label alone cannot describe the complete clinical plan.

  • Exact device and applicator
  • Treatment zones and exclusions
  • Mode, energy context and shot density
  • Cooling and comfort plan
  • Documentation and follow-up
Evidence-based comparison

Published system details

Program XERF6.78 MHz and 2.0 MHz modes were selected by facial zone in the cited human protocol.
Program Thermage FLXThe system uses its own treatment tips, cooling blasts, vibration and AccuREP calibration.

Evidence boundary

Program XERFThe cited prospective human study included 39 participants, used no control group and had short-term follow-up.
Program Thermage FLXManufacturer and FDA system records are available; no randomized head-to-head XERF trial was identified.

Plan to compare

Program XERFZones, mode, energy context, shot density, exclusions, comfort plan and follow-up.
Program Thermage FLXTip, zones, energy context, passes, exclusions, comfort plan and follow-up.

What this cannot prove

Program XERFA fixed comfort, recovery time or outcome for every patient.
Program Thermage FLXUniversal superiority over another monopolar RF system.

Device specifications describe the system. They do not replace a physician assessment or predict an individual result.

03Choose by intent — then let anatomy refine the plan

If your priority is lower-face laxity, texture, facial definition, comfort or fitting treatment around travel, say which concern matters most. Similar-looking concerns can come from skin, soft-tissue volume, muscle, bone support or previous procedures, so one standard full-face map will not fit everyone.

If preserving facial volume is important, ask which areas will receive normal exposure, reduced exposure or no treatment. If you have an event or flight, ask about the clinic's realistic buffer rather than relying on a zero-downtime promise.

  • What change do I want the physician to assess?
  • Which existing volume or facial feature do I want to preserve?
  • How much heat or discomfort am I comfortable reporting during treatment?
  • How much recovery uncertainty can my schedule tolerate?

04Shots are not a universal dose — and more is not automatically better

A shot count does not tell you the energy per shot, mode, spacing, overlap, treated area or protected zones. Two quotations with the same number can therefore describe different treatment plans.

Ask for the proposed range and the clinical reason behind it. After treatment, ask what the device recorded.

Treatment interval and maintenance should also be reassessed from response, ageing, goals and safety rather than fixed to one calendar promise for everyone.

05Before treatment — bring a useful history

Bring the names, dates and treatment zones for previous filler, collagen stimulators, threads, surgery and energy procedures. Disclose implanted electrical devices and complete the contraindication screen for the exact system being proposed.

Tell the clinician about active skin symptoms, medications, pregnancy or breastfeeding and relevant medical conditions. Ask to see the exact device and applicator, and agree on expected sensations and a pause signal before the first shot.

06Aftercare — make the follow-up route part of the plan

Temporary warmth, redness or swelling can occur after monopolar RF, but the range and duration vary. Follow the clinic's written instructions for the treated zones and settings.

Use gentle skincare and sun protection, and avoid adding heat or irritating products until the treating team confirms they are appropriate.

Contact the clinic if redness or swelling is worsening or persistent, or if you notice marked pain, blistering, a burn, pigment change, altered sensation or any symptom that concerns you. The clinic should provide a direct follow-up route rather than asking you to rely on a fixed recovery claim.

07A useful consultation — ends with a plan you understand

Ask the physician to connect each proposed zone to an assessed concern and explain what would change the plan. A responsible comparison includes alternatives, doing less, postponing treatment and deciding not to treat a zone.

This article is general education, not individual medical advice or a promise of results. Sources were reviewed on 17 August 2026.

Suitability, settings and aftercare require an in-person assessment by a qualified clinician.

  • What is the assessed cause of my concern?
  • Why this system and this map for my anatomy?
  • Which areas will be treated, reduced or excluded?
  • What sensations are expected and when should I ask to pause?
  • What reactions are expected and what requires urgent contact?
  • When and how will the clinic follow up with me?

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08Common questions

Is Program XERF available at Waleerat Clinic?+
Yes. Program XERF is available by consultation. A physician first assesses your skin, treatment history, priorities and schedule before discussing suitability, treatment zones and an individual plan.
Is Program XERF the same as Program Thermage FLX?+
No. Both are monopolar RF systems, but their frequencies or modes, tips, cooling, monitoring and treatment protocols differ.
Which program is better?+
No direct randomized clinical comparison currently establishes a universal winner. The better question is which assessed plan fits your anatomy, priorities, history and tolerance for recovery uncertainty.
Does Program XERF hurt less?+
The XERF study reported pain within one protocol, but it was not a direct Thermage FLX trial. Sensation depends on zone, settings, cooling, technique and the individual.
Should I choose the package with more shots?+
Not from shot count alone. Compare the included area, mode, energy context, density, exclusions, physician assessment and follow-up.
Can the programs 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.

10References & further reading

  1. Clinical Outcomes Following Dual-Frequency Noninvasive Monopolar Radiofrequency Treatment for Facial Laxity and Lower Face LiftingProspective multicentre XERF study of 39 participants with short-term follow-up; not a direct Thermage comparison.
  2. Thermage FLX system and important safety informationManufacturer information on tips, cooling, vibration, indications and reported reactions.
  3. FDA 510(k) K251327 — XERFUS substantial-equivalence record including ex-vivo technical comparison; no clinical tests were submitted for this clearance.
  4. FDA 510(k) K170758 — Thermage FLX System and AccessoriesUS device clearance record for Thermage FLX.
  5. Radiofrequency-Based Treatments for Facial Rejuvenation: A Systematic ReviewReview of RF modalities, study quality, safety and patient-centred outcomes.

External sources · last verified 2026-08-17

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