Is XTherma the same as XERF?

No. They are two different devices from two different Korean manufacturers. XERF is made by Cynosure Lutronic and is dual-frequency, combining 6.78 MHz and 2 MHz. XTherma is made by Tentech and runs at 6.78 MHz only.

10therma is the name XTherma is registered under with the FDA, in clearance K232992. Both names refer to the same device, made by Tentech in Seoul.

Is XTherma available in Canada?

As of September 2026, XTherma is not available in Canada. XERF is available in Canada, as well as Korea, Japan, Hong Kong and the United States.

How is XTherma different from Thermage?

Both run at 6.78 MHz. Tentech named the Thermage FLX System as the predicate device in XTherma's FDA filing, meaning they presented it as substantially equivalent to Thermage.

Energy Devices · Clinical Guide

XERF vs. XTherma.
Two different machines.

They sound alike, they are both Korean, and they are both monopolar radiofrequency. One runs two frequencies, the other runs one. Here is what separates them, and which of them you can actually get in Canada.

XERF is made by Cynosure Lutronic. It is dual-frequency, combining 6.78 MHz and 2 MHz.

XTherma is made by Tentech. It runs at 6.78 MHz only, and its FDA filing names the Thermage FLX System as its predicate device.

As of September 2026, XTherma is not available in Canada. XERF is.

Where the confusion comes from

The names are close, both devices are Korean, both are monopolar RF, and both reached North America recently. Search results mix them constantly.

The registered name adds to it. Tentech's FDA clearance lists the device as 10therma (K232992). It is marketed in the United States as XTherma. Same machine, two names, and patients searching either one land in a different set of results.

The actual difference: one frequency or two

XTherma delivers 6.78 MHz at 400 W in a 1,200 ms metered pulse, with cryogen fired at the same moment as the RF pulse rather than between pulses. It ships with three tips: a 0.25 cm² eye tip, a 5.0 cm² face tip, and a 20 cm² body tip with a continuous glide mode for larger areas.

XERF combines 6.78 MHz with 2 MHz. The higher frequency deposits energy more superficially; the lower frequency carries deeper. The system offers three depth settings and ten intensity levels, with impedance feedback and surface temperature shown per shot.

At 6.78 MHz alone, XTherma sits in the same architectural family as Thermage. That is not our characterisation — it is what Tentech presented to the FDA, filing the device against the Thermage FLX System as its predicate.

Which means the comparison most people are searching for is the wrong one. The question is not XERF versus XTherma. It is single-frequency versus dual-frequency monopolar RF. Thermage FLX, XTherma and Classys' Volnewmer are all 6.78 MHz single-frequency platforms. XERF is currently the outlier.

Canadian availability

XERF launched in 2024 and is now sold in Korea, Japan, Hong Kong, Canada and the United States.

XTherma entered the US market in 2026 and is not currently available in Canada. So in the United States the two are genuinely alternatives; in Canada they are not, and if you have seen XTherma recommended you were most likely reading American coverage.

A search of Health Canada's Medical Devices Active Licence Listing in September 2026 returned no match for XTherma, for 10therma, or for the manufacturer Tentech. Nothing licensed means nothing that can be legally sold or offered here.

Availability is decided by that licensing and it changes. If you are reading this well after the date at the bottom of the page, check the listing rather than trusting this line.

Does the second frequency actually matter?

An honest answer, from someone who has performed more than 10,000 monopolar RF treatments and spent time as a Thermage clinical trainer.

The dual-frequency design is a real engineering difference, not a marketing label. Delivering energy at two depths in one pass changes how the treatment is built and what a single session can cover.

What it does not do is make technique irrelevant. Monopolar RF outcomes depend heavily on how the energy is placed: pass count, overlap, coupling, sliding versus stamping, and how the endpoint is judged on that particular face. A well-run Thermage treatment outperforms a poorly run XERF treatment. That has been true through every generation of this technology and there is no reason to expect the next one to change it.

If you are choosing between clinics rather than between devices, the operator matters more than the logo on the machine. We would say that even if we owned the other one.

If you are comparing

In Canada, XTherma is not an option, so the choice does not currently arise. If you are weighing the two in the United States, or comparing a quote you have been given, the questions are the same whichever platform is in the room:

How many treatments has the person holding the handpiece actually performed?
How are the settings chosen for your skin, rather than taken from a preset?
What endpoint are they treating to, and how do they know they have reached it?

A note on these guides. Everything here reflects the clinical perspective of Dr. Andy at Skin Trek — not industry consensus, not marketing copy. Some of it will be opinion. Where it is, we say so. Where it is evidence-based, we try to be specific about what the evidence actually shows.

Accurate as of September 2026. Device availability and regulatory status change; we date this page rather than leaving it to age quietly.

XERF vs. XTherma.Two different machines.