Dual-frequency monopolar RF brings two operating frequencies into one platform, giving practitioners more ways to configure skin-tightening treatments. Systems using 6.78MHz and 2MHz combine different heating patterns with selectable modes, pulse settings, and cooling controls.
For clinics, the practical benefit is flexibility. Different facial areas have different tissue thicknesses, contours, and contact requirements. A platform with multiple delivery options lets treatment planning reflect those differences.
For patients, surface-applied monopolar RF offers a needle-free approach to addressing skin laxity and reduced firmness. For buyers, understanding the technology helps connect machine specifications with treatment services, workflow, and operating costs.
簡単な回答
Dual-frequency monopolar RF uses two frequencies to provide different thermal-delivery options. Research models associate 6.78 MHz with more localized heating along fibrous septa and 2 MHz with broader thermal effects in modeled adipose tissue. Pulse timing, electrode design, output, cooling, and contact shape the final heating pattern.
主な利点
- Two frequencies within one monopolar platform
- Selectable modes for different treatment requirements
- Needle-free energy delivery through the skin surface
- Pulse and cooling controls that support thermal management
- Applicator options for different contact areas
What Is Dual-Frequency Monopolar RF?
Dual-frequency monopolar RF describes a platform that operates at two nominal RF frequencies. The combination discussed here is 6.78MHz and 2MHz.
In a monopolar circuit, current passes from an active treatment electrode through tissue toward a separate return electrode. Tissue resistance converts electrical energy into heat, forming the basis of RF tissue heating.
Single-Frequency vs. Dual-Frequency
A single-frequency platform operates at one nominal frequency. Adding a second frequency expands the available energy-delivery options. The practical difference depends on how the device combines frequency, pulses, output, and cooling.
For clinics, the useful question is what those additional options allow operators to do: select different modes, adapt delivery by area, and work with the applicators supplied.
Dual-Frequency Does Not Mean Bipolar
Frequency and electrode configuration describe different features. Dual-frequency refers to the operating frequencies. Monopolar and bipolar refer to the electrode arrangement and the path current takes through tissue.
A dual-frequency monopolar platform remains monopolar. It differs from a system that switches between monopolar and bipolar delivery.
How XERF Delivers the Two Frequencies
In published original XERF deep-mode protocols, 6.78MHz is delivered first, followed by 2MHz within the same treatment shot. That shot contains a sequence of subpulses, with timing and energy controlled by the selected settings.
This makes frequency sequencing and pulse structure important specifications when comparing dual-frequency machines.
How Does Dual-Frequency RF Work?
The mechanism can be understood in four steps.
Step 1: Current Enters the Tissue
The treatment electrode is placed against the skin. RF current passes through the underlying tissue toward the return electrode, without microneedle insertion.
Step 2: Tissue Resistance Generates Heat
As current passes through tissue, electrical resistance converts energy into heat. Current density, electrode geometry, and contact influence where heating is concentrated.
Step 3: Settings Shape the Thermal Distribution
Frequency, pulse duration, output, cooling, and tissue properties work together to shape the thermal field. RF heating develops across a three-dimensional volume rather than within perfectly separated horizontal layers.
Step 4: Tissue Responds and Remodels
Controlled thermal exposure can alter existing collagen structures and initiate a longer remodeling response. Early tissue changes and later biological remodeling occur on different timescales, which is why follow-up assessment is part of the treatment process.
6.78MHz vs. 2MHz: What Is the Difference?
A 2025 study combining computational modeling and porcine-tissue experiments examined how these frequencies influence heating and tissue responses.
6.78MHz: Localized Fibrous-Septal Heating
The model associated 6.78MHz with more localized heating along fibrous septa. These connective-tissue structures run through subcutaneous fat and contribute to connections between tissue layers.
2MHz: Broader Thermal Effects
In the modeled adipose tissue, 2MHz produced broader and deeper thermal effects. It contributed a different heating pattern to the combined delivery strategy.
Combined Delivery
Combined treatment produced a pronounced response near the dermosubcutaneous junction, where the dermis meets subcutaneous tissue. These findings explain the engineering rationale for using complementary frequencies.
| 特徴 | 6.78MHz RF | 2MHz RF |
|---|---|---|
| Model-based heating pattern | More localized along fibrous septa | Broader within modeled adipose tissue |
| Contribution | One thermal-distribution option | A complementary thermal-distribution option |
| Use within the platform | Configured through modes and pulse settings | Incorporated into the combined delivery sequence |
The clinical value of a platform comes from how these options are implemented through its controls, applicators, and treatment workflow.
Shallow, Middle, and Deep: Customizing Treatment by Area
The cheeks, jawline, perioral region, and neck differ in thickness, contour, and contact requirements. Treatment planning needs to account for those differences.
Shallow, Middle, and Deep are device-defined modes. To understand their practical use, review the frequency sequence, pulse settings, output, cooling, and compatible tips associated with each mode.
| Treatment consideration | What to evaluate |
|---|---|
| Narrow or small areas | Tip dimensions and access |
| Broad facial areas | Coverage and working pattern |
| Curved contours | Applicator fit and full contact |
| Different tissue thicknesses | Mode and energy selection |
A useful supplier demonstration shows how operators select these settings and what information remains visible during delivery.
Practical Features That Matter in the Treatment Room
Pulse Control
Pulse duration, spacing, and repetition influence heat accumulation. Comparing energy per shot, pulse timing, shot intervals, and accumulated energy gives buyers a clearer picture of delivery than maximum power alone.
涼しさと快適さ
In original XERF, Wave Fit™ controls pulse delivery while Integrated Cryogen Delivery provides surface cooling. These are separate functions designed to work together.
When evaluating a machine, ask how cooling is activated, which settings are available, and how it interacts with the selected mode. Patient feedback and skin response remain part of treatment monitoring.
Impedance Feedback and Monitoring
Impedance functions can include pre-delivery measurement, monitoring during treatment, or automatic output adjustment. Ask which functions the quoted model provides and what the operator sees on the display.
Treatment Tips and Contact
Tip dimensions and electrode geometry affect handling, coverage, and energy distribution. Smaller tips can improve access to narrow areas, while larger tips provide broader coverage.
Assess the machine with the tips included in the quotation, paying attention to fit on curved surfaces and the full-contact requirements.
Clinical Applications and Treatment Positioning
Facial Firmness and Early Laxity
Non-invasive monopolar RF fits within services focused on reduced firmness, early facial laxity, and age-related changes in skin support.
The practical starting point is the patient’s main concern: cheek firmness, lower-face laxity, jawline definition, or another area requiring assessment.
Jawline and Neck Services
These areas require attention to tissue characteristics, applicator contact, and operator handling. Clinics should evaluate how the available tips and protocols support their intended service menu.
Patients Who Prefer Needle-Free Procedures
Surface-applied monopolar RF gives clinics a treatment option for patients who prefer to avoid needle insertion. Its delivery method differs from RF microneedling, which places electrodes within tissue through needles.
Fitting the Technology into an Existing Menu
Equipment selection should reflect the clinic’s patient demand and existing services. A practice focused on skin laxity may assess monopolar RF differently from one primarily providing scar treatment or resurfacing.
For a comparison of energy categories, read our HIFU vs. monopolar RF guide for skin laxity。
How Does It Compare With Other RF Approaches?
| テクノロジー | Main characteristic | What buyers should examine |
|---|---|---|
| 単一周波数モノポーラ RF | One nominal frequency | Pulses, controls, cooling, and evidence |
| デュアル周波数モノポーラ RF | Two frequencies in a monopolar platform | Sequence, modes, and practical workflow |
| Combined monopolar–bipolar RF | Changes electrode configuration and current path | How each delivery stage operates |
| RFマイクロニードリング | Energy delivered through inserted needles | Needle design, depth control, consumables, and recovery |
Compare the architecture with the clinic’s treatment goals, rather than treating the number of modes as a quality ranking.
For a closer look at two branded platforms, see our XERF and Volnewmer technology comparison。
What Should Clinics Compare Before Buying?
Use the following checklist when evaluating professional monopolar RF machines。
| Buying factor | What to compare |
|---|---|
| Frequencies and modes | Delivery sequence and mode operation |
| Energy controls | Output range, pulse settings, and energy display |
| Cooling and feedback | Cooling method, monitoring, and control functions |
| 治療のヒント | Dimensions, included quantities, compatibility, and shot capacity |
| 消耗品 | Replacement prices and ongoing availability |
| トレーニング | Manuals, technique guidance, and remote instruction |
| サービス | Warranty coverage, spare parts, repairs, and response arrangements |
| ドキュメンテーション | Specifications and supporting documents for the quoted model |
Compare More Than Shot Count
One shot is a device-defined delivery event. Compare shot capacity alongside tip area, energy per shot, pulse structure, coverage, and the intended protocol.
For example, two tips with the same shot allowance may differ in contact area and replacement cost. Those differences affect consumable planning.
Review Total Operating Costs
Request an itemized quotation covering the machine, included tips, recurring supplies, training, and service terms. This makes competing offers easier to compare and helps the clinic plan beyond installation.
Clinical Support for the Technology
Published studies on original XERF have examined thermal distribution, tissue remodeling, and short-term facial outcomes. They help explain the technology’s development and its role in non-invasive skin-tightening services.
A 2026 prospective multicenter study included 39 participants who received two treatments. At 90 days after the final session, 92.3% had investigator-rated GAIS scores of at least 3, indicating improvement or better.
For equipment buyers, the next step is to connect the technology overview with the specifications and supporting information for the model being considered.
Introducing the XERF Alternative Model
の XERF Alternative Model offered by Mico Aes brings dual-frequency operation, selectable modes, adjustable output, cooling, and multiple tip sizes into one platform.
The current product listing describes the following configuration:
| 特徴 | Listed specification |
|---|---|
| 周波数 | 6.78MHz + 2MHz |
| 治療モード | 浅/中/深 |
| 出力調整 | 10 levels |
| Cooling adjustment | 3 levels |
| Tip options | Four contact sizes |
| 監視 | Impedance synchronization, surface temperature, and energy information |
Clinics can review the configuration against their treatment menu, operator workflow, and consumable budget. Distributors can also discuss replacement supplies, training resources, and after-sales arrangements for their target market.
When requesting a proposal, tell us your clinic type, destination country, main treatment areas, and required tip quantities. These details help our team prepare a relevant quotation.
Request current pricing, configuration options, treatment-tip details, and the model-specific specification sheet.
よくある質問
What does dual-frequency monopolar RF mean?
It describes a monopolar platform that operates at two frequencies. The combination discussed here is 6.78MHz and 2MHz.
How do the frequencies work together in XERF?
Published original XERF deep-mode protocols describe 6.78MHz followed by 2MHz within the same shot, delivered through a controlled subpulse sequence.
Does the treatment use needles?
Surface-applied monopolar RF uses an electrode placed against the skin and a separate return electrode. It does not require microneedle insertion.
What do Shallow, Middle, and Deep mean?
They are manufacturer-defined operating modes. Review the frequency sequence, pulses, output, cooling, and compatible tips for each setting.
How does cooling support comfort?
Cooling helps manage surface temperature during energy delivery. Its operation should be assessed together with pulse settings, treatment area, and patient feedback.
推奨されるセッション数は何ですか?
The schedule depends on the device protocol, treatment area, skin condition, and treatment goals. Clinics should establish the plan through patient assessment.
How can buyers choose a configuration?
Start with the intended services and treatment areas, then compare tips, controls, consumables, training, and service support. Mico Aes can provide configuration details and pricing based on those requirements.
結論
Dual-frequency monopolar RF provides additional ways to configure tissue heating. Its practical value comes from how frequencies, pulses, applicators, cooling, and controls work together.
For clinics and distributors, the right choice connects these technical features with treatment services, daily workflow, recurring costs, and reliable support.
Tell us your clinic type, country, and treatment requirements. Our team can recommend a suitable configuration and provide current pricing, treatment-tip details, and delivery options.
参考文献
Erlich G, Dahan E, Wolf Y. Objective and subjective retrospective evaluation of XERF, a novel single-shot dual-frequency non-invasive monopolar radiofrequency. Lasers in Medical Science. 2026;41:194. DOI: 10.1007/s10103-026-04996-0。
Ko K, et al. Computational modeling and histologic analysis of 6.78- and 2-MHz monopolar radiofrequency-induced thermal reactions. Lasers in Medical Science. 2025;40:501. DOI: 10.1007/s10103-025-04746-8。
Weiss RA, et al. Clinical Outcomes Following Dual-Frequency Noninvasive Monopolar Radiofrequency Treatment for Facial Laxity and Lower Face Lifting: A Prospective Multicenter Study. Cureus. 2026;18(3):e104546. DOI: 10.7759/cureus.104546。
