XERF in Daegu: Dual-Frequency RF Research and 30- and 90-Day Assessments
Read the Korean originalSummary XERF is a guided RF procedure that uses two frequencies. We identify the targets and evaluation points of short-term clinical studies, and distinguish between reintervention intervals, long-term maintenance periods, and comparative superiority.
Direct answer
A prospective dual-frequency RF study evaluated 39 patients 30 and 90 days after completing two treatment sessions. This study observed short-term improvements, had no control group, and had manufacturer support, so it cannot be extended to conclusions about long-term sustainability or superiority over other devices.
Before your consultation
- Check the target treatment area and evaluation criteria before the frequency.
- Understand the meaning of 30 and 90-day observation after the procedure.
- The official guidance of 4-week intervals is not accepted as a personal prescription.
- We convey concerns about existing procedures and facial peeling.
General information, not a personal diagnosis or treatment plan. Suitability, risks and recovery require an individual consultation.
What we can learn from the description of two frequencies
The official instructions describe combinations of 6.78MHz and 2MHz and depth settings. This information will help you understand the configuration of your device. However, you cannot judge how much change will occur in your face or how much better it is than other equipment just by looking at the frequency number.
In the actual consultation, ask which treatment area and what changes you are aiming for. It is a good idea to hear an explanation as to whether the elasticity of the cheeks and the outline of the jaw line are evaluated using the same indicators, and whether a different plan is needed for each treatment area. You can also set the conditions for before and after photos and the evaluation date.
Sources and evidence: Doctor Designer Daegu XERF Guide
What did the 39-person study find?
In a multicenter prospective study, 39 patients completed two treatment sessions 4 weeks apart and were evaluated at 30 and 90 days after the last procedure. It can be read as observation data on short-term changes and satisfaction. This is not to be interpreted as a prescription that all readers need the same number of times.
This was a study without a control group, and the manufacturer provided equipment, consumables, and research funds. These conditions should also be presented along with the results so the reader can judge the weight of the evidence. This data alone does not determine whether it is superior to other RF equipment or whether the effect will be maintained for several years.
Sources and evidence: Dual-frequency unipolar RF multicenter prospective study (2026, PMID 41930066)
Distinguish between 4-week intervals and long-term maintenance periods
The clinic's official information lists a treatment cycle of 4 weeks, treatment time of 15 to 30 minutes, and recovery time of 2 to 3 days. The interval between repeated treatments and the end date of the first treatment are different. This should not be read to mean that the effect disappears after a certain period of time.
Before deciding on additional procedures at your next visit, check your remaining concerns and previous reactions. You can ask what kind of benefit you expect as the number of rounds increases, and whether the option of waiting and observing is also possible. The specificity of the evaluation plan is more important than the number of procedures themselves.
Sources and evidence: Doctor Designer Daegu XERF Guide
Conditions to check rather than numbers when comparing Thermage
When comparing equipment, match your treatment goals and treatment area first. Cost and schedule implications vary depending on whether it is the entire face or a specific treatment area, whether pain control and follow-up are included, and the number of consultations recommended. A table with just the frequencies side by side is not sufficient.
If you are told that a piece of equipment is better for you, you might ask what characteristics of yours made that decision. Even when citing papers from different equipment, make sure that the actual product and research conditions are the same. Just because it's a new model doesn't mean you should conclude that the results are better.
When you are concerned about thin skin or sagging skin
It is also important to first mention any unwanted changes during the consultation. Try breaking down your goal by saying you want to trim your jawline, but you don't want your cheeks to look more sunken. Examination should confirm whether the same approach is appropriate for all treatment areas of the face.
If you have previously had dermal fillers or fat-related procedures, prepare a record. If it is difficult to know your existing volume, past photos can also be used for consultation. The photos are for reference only, and the actual scope of treatment must be determined by the medical staff after confirming the current condition and history.
Recovery timeline and contact criteria
Official guidance explains temporary swelling, bruising, and redness. Even if you can go about your daily life, that doesn't mean you won't see any signs of it at important appointments. If your schedule is tight, please specifically check the expected response and recovery margin during the consultation.
If there are any changes that differ from the instructions or if discomfort increases, please contact the treatment facility. I recommend checking in person if you would like to wait for your next visit. Briefly writing down the start date, location, and changes of your symptoms will help you describe them and reduce confusion with the recovery process from other procedures.
Sources and evidence: Doctor Designer Daegu XERF Guide
Three things to check at your progress visit
The first is how the initially targeted treatment area has changed. The second is whether there are any new inconveniences or unwanted changes. Third is why additional procedures are needed. By distinguishing between these three, you do not have to judge satisfaction and the decision to re-treat all at once.
Also record photo conditions, weight changes, and whether other procedures were performed. When several factors change, it is difficult to isolate and evaluate the effectiveness of one piece of equipment. Even if short-term satisfaction is high, it is better to leave aside areas that require long-term evaluation and adjust the plan while observing.
Dongseong-ro XERF consultation and progress shooting schedule
When planning an XERF consultation at Daegu Dongseong-ro, distinguish between the available date for the procedure and the date you will come to check progress photos. If you visit Daegu Jungang-ro after work, it is a good idea to make a reservation that includes preparation and consultation time, and ask how the evaluation timing of the study will be reflected in your plan.
FAQ
Did the XERF study prove long-term maintenance?
The clinical studies in this article are evaluated 30 and 90 days after the last treatment and do not demonstrate continuation over several years.
Is it better than other high frequencies?
The studies cited do not have a comparative control group, so superiority cannot be determined.
Does everyone need to get it every 4 weeks?
Clinic-guided intervals and individual plans will vary depending on treatment area and response.
Sources and evidence
Sources checked: 2026-09-09
- Doctor Designer Daegu XERF Guide
For checking frequency and clinic guidance schedule.
- Dual-frequency unipolar RF multicenter prospective study (2026, PMID 41930066)
39 people completed, 30 and 90 day evaluation after 2 treatments. There is no control group, and there is manufacturer equipment, consumables, and research funding support.
Translated from our Korean educational content using machine-assisted translation and terminology checks. This is not a claim of independent medical review. Study limitations and source links are retained; please ask the clinic about anything unclear.