Dual-frequency monopolar RF combines two operating frequencies in one platform, giving practitioners more ways to configure skin-tightening treatments. Systems using 6.78MHz and 2MHz bring different heating patterns together with selectable modes, controlled pulses, and surface cooling.
For clinics, the practical value is the ability to adapt treatment to different areas. The cheeks, jawline, and neck vary in tissue thickness, contour, and contact requirements. Frequency selection is one part of that process; applicators, energy settings, and cooling help turn it into a workable treatment approach.
This guide explains the technology, its clinical positioning, and what to consider when choosing a machine for your clinic or distribution business.
Hurtigt svar
Dual-frequency monopolar RF uses two frequencies to provide different thermal-delivery options. Research models associate 6.78MHz with localized heating along fibrous septa and 2MHz with broader thermal effects in modeled adipose tissue. The final heating pattern also depends on pulse timing, electrode geometry, output, cooling, and tissue contact.
Vigtige fordele
- Two operating frequencies within one monopolar RF platform
- Selectable settings for different treatment requirements
- Needle-free energy delivery through the skin surface
- Pulse and cooling controls for thermal management
- Different applicator sizes for treatment coverage and access
What Is Dual-Frequency Monopolar RF?
Dual-frequency monopolar RF describes a system that operates at two nominal radiofrequency frequencies. The combination discussed here is 6.78MHz and 2MHz.
In a monopolar circuit, current travels from an active treatment electrode through tissue toward a separate return electrode. Tissue resistance converts electrical energy into heat.
The treatment electrode stays on the skin surface. This makes surface-applied monopolar RF an option for clinics offering skin-firming treatments without microneedle insertion.
Single-Frequency and Dual-Frequency Systems
A single-frequency machine operates at one nominal RF frequency. A dual-frequency platform adds another frequency, expanding the ways energy delivery can be configured.
The practical difference depends on the complete design. Pulse timing, output adjustment, applicators, cooling, and mode selection determine how the available frequencies are used during treatment.
For buyers, the important question is which useful operating options the platform provides and how clearly those options are presented to the practitioner.
Dual-Frequency and Bipolar Describe Different Features
Dual-frequency refers to the operating frequencies. Monopolar and bipolar describe the electrode arrangement and current path.
A monopolar system uses a treatment electrode and a separate return electrode. Bipolar RF generally passes current between electrodes within the treatment applicator. A dual-frequency platform can therefore remain entirely monopolar.
How XERF Delivers the Two Frequencies
Published original XERF deep-mode protocols describe 6.78MHz followed by 2MHz within the same treatment shot. Each shot contains a sequence of subpulses, with timing and energy controlled by the selected settings.
This is why frequency sequence and pulse structure belong in a meaningful comparison of dual-frequency machines.
How Does Dual-Frequency RF Work?
The mechanism can be understood in four steps.
1. Current Enters the Tissue
The treatment tip contacts the skin, and RF current passes from the active electrode through tissue toward the return electrode.
Electrode size, shape, and contact affect how current is distributed.
2. Tissue Resistance Generates Heat
As current passes through tissue, electrical resistance converts energy into heat. Current density and the electrical properties of the tissue influence where heating develops.
3. Device Settings Shape the Thermal Pattern
Frequency, pulse duration, output, cooling, and tissue characteristics work together to create the thermal field.
Heating develops through a three-dimensional volume. Adjusting the delivery settings changes the pattern of energy deposition and heat accumulation.
4. Tissue Responds and Remodels
Controlled thermal exposure can change existing collagen structures and initiate a longer remodeling response.
Some early changes relate to the immediate tissue response, while subsequent remodeling develops over the following weeks and months. Follow-up assessment helps practitioners evaluate that progression.
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 help connect and support tissue layers.
2MHz: Broader Thermal Effects
Within the modeled adipose tissue, 2MHz produced broader and deeper thermal effects. It added a different heating pattern to the combined delivery sequence.
Combined Delivery
Combined treatment produced a pronounced response near the dermosubcutaneous junction, where the dermis meets subcutaneous tissue. These findings provide the engineering rationale for combining the frequencies.
| Frekvens | Observation in the research model |
|---|---|
| 6,78 MHz | More localized heating along fibrous septa |
| 2 MHz | Broader thermal effects within modeled adipose tissue |
| Combined delivery | Pronounced response near the dermosubcutaneous junction |
For equipment buyers, the next step is understanding how the machine translates these operating options into modes, pulse settings, and applicator choices.
Clinical Applications and Treatment Positioning
Facial Firmness and Early Skin Laxity
Non-invasive monopolar RF fits within services focused on reduced firmness and the appearance of skin laxity.
Common consultation concerns include:
- Reduced cheek firmness
- Early lower-face laxity
- A softer-looking jawline
- Fine lines associated with skin aging
- Changes in neck firmness
These concerns give practitioners a starting point for assessing whether RF heating fits the patient’s treatment goals.
Jawline, Submental Area, and Neck
These areas have different handling requirements.
The jawline includes curved surfaces, submental tissue thickness varies, and the neck requires careful applicator positioning. Suitable tip dimensions and consistent contact are important parts of treatment planning.
When evaluating equipment, a demonstration should explain how the supplied tips and operating modes relate to the areas your clinic intends to treat.
A Needle-Free Option Within the Treatment Menu
Surface-applied monopolar RF provides an option for patients who prefer to avoid needle insertion.
RF microneedling uses inserted electrodes to deliver energy within tissue. HIFU uses focused ultrasound, while fractional lasers deliver optical energy. Understanding these differences helps clinics explain their services and choose equipment that complements their existing work.
For a closer comparison, read our HIFU vs. monopolar RF guide for skin laxity.
Published Clinical Snapshot
A 2026 prospective multicenter study of original XERF included 39 participants who received two treatments. At 90 days after the final session, 92.3% had investigator-rated Global Aesthetic Improvement Scale scores of at least 3, indicating improvement or better.
These findings describe short-term outcomes for the original device and treatment protocol studied.
Modes, Pulses, Cooling, and Applicators
Shallow, Middle, and Deep Settings
Shallow, Middle, and Deep are manufacturer-defined operating modes.
Their practical meaning comes from the settings behind them: frequency sequence, pulse timing, energy allocation, cooling, and compatible tips. Clear mode selection helps practitioners organize treatment by area.
| Treatment consideration | Relevant equipment feature |
|---|---|
| Narrow or small areas | Tip dimensions and access |
| Brede ansigtsområder | Applicator coverage and working pattern |
| Curved contours | Tip fit and full-contact requirements |
| Different tissue characteristics | Mode and energy selection |
Pulse Control
Pulse duration, spacing, and repetition influence heat accumulation.
Useful specifications include energy per shot, pulse timing, shot intervals, and accumulated energy. Together, these explain how the machine delivers its output over time.
Cooling and Treatment Comfort
In original XERF, Wave Fit™ controls pulse delivery, while Integrated Cryogen Delivery provides surface cooling.
When comparing machines, review how cooling is activated, which settings are available, and how it coordinates with energy delivery. Patient feedback and skin response remain part of treatment monitoring.
Impedance Feedback and Monitoring
Impedance functions may include measurement before delivery, monitoring during treatment, or automatic output adjustment.
The supplier should explain which functions are included and demonstrate the information available to the operator, such as temperature, energy, shot count, and selected settings.
Applicator Choice
Smaller tips can improve access to narrow areas. Larger tips provide broader contact coverage.
Assess the machine with the actual applicators included in the package. Tip handling, contact requirements, replacement costs, and ongoing availability all affect daily use.
What Should Clinics Compare Before Buying?
A suitable machine should fit the clinic’s services, staffing, consumable budget, and support needs.
Use the following checklist when comparing professional monopolar RF machines.
| Buying factor | What to compare |
|---|---|
| Frequencies and modes | Operating frequencies, delivery sequence, and mode settings |
| Energistyring | Output adjustment, pulse settings, and energy display |
| Cooling and monitoring | Cooling method, feedback functions, and available readings |
| Tips til behandling | Types, included quantities, compatibility, and replacement options |
| Forbrugsvarer | Usage allowance, replacement prices, and supply arrangements |
| Uddannelse | Included guidance, operation resources, and access to support |
| Garanti | Main-unit and accessory coverage |
| Opretholdelse | Troubleshooting, repairs, and replacement-part arrangements |
| Levering | Shipping costs, route, customs responsibilities, and DDP availability |
Compare More Than Shot Count
A shot is a device-defined delivery event. Compare shot allowance alongside tip area, energy per shot, pulse structure, coverage, and the intended treatment protocol.
Two tips with the same shot allowance can have different contact areas and replacement costs.
Review the Complete Package
The machine price is only one part of the purchase. Included tips, training, shipping, warranty, and maintenance support also affect the value of the offer.
An itemized quotation makes it easier to compare packages and understand what will be needed after delivery.
For a comparison of two branded platforms, see our XERF and Volnewmer technology comparison.
Introducing the XERF Alternative Model
De XERF Alternative Model supplied by Mico Aes operates at 6.78MHz and 2MHz and is available with a package designed for professional buyers.
The package includes 40 treatment tips: 10 of each of four types, along with free training guidance and after-sales support.
Configuration and Service Package
| Punkt | Included configuration or service |
|---|---|
| Operating frequencies | 6.78MHz + 2MHz |
| Tips til behandling | 40 tips in total |
| Tip assortment | Four types, 10 of each |
| Uddannelse | Free training and operating guidance |
| Main-unit warranty | One year |
| Accessory warranty | Six months |
| Opretholdelse | Lifetime maintenance support |
| Forsendelse | Included for most destinations |
| DDP delivery | Available for selected countries |
A Substantial Starting Tip Package
The included assortment gives buyers access to all four tip types from the start.
When discussing the configuration, review the contact area and intended use of each type, its usage allowance, and replacement pricing. This helps the clinic plan its opening stock and future consumable purchases.
Free Training and Guidance
Mico Aes provides free training guidance to help buyers become familiar with the machine, controls, treatment tips, and operating workflow.
Clinics can discuss their main treatment areas and training needs before delivery so the guidance can address the purchased configuration.
Warranty and Lifetime Maintenance Support
The package includes a one-year main-unit warranty og six-month accessory warranty, followed by lifetime maintenance support.
Buyers can discuss troubleshooting, servicing, and replacement-part arrangements with the Mico Aes team when reviewing the quotation.
Shipping and DDP Options
Shipping is included for most destinations, and DDP delivery is available for selected countries.
Provide your destination country and postal code so our team can confirm the available route, delivery terms, and quotation.
Request current pricing for the XERF Alternative Model, including the 40-tip package, free training guidance, warranty coverage, and delivery options.
Ofte stillede spørgsmål
What does dual-frequency monopolar RF mean?
It describes a monopolar platform operating at two frequencies. The combination discussed here is 6.78MHz and 2MHz.
How are the two frequencies delivered in original XERF?
Published deep-mode protocols describe 6.78MHz followed by 2MHz within the same treatment shot, using a controlled subpulse sequence.
Does surface-applied monopolar RF use needles?
No. The treatment electrode contacts the skin surface, and a separate return electrode completes the circuit.
How many tips are included with the XERF Alternative Model?
The package includes 40 treatment tips, consisting of four types with 10 of each type.
Er træning inkluderet?
Yes. Mico Aes provides free training and operating guidance for the purchased configuration.
Hvilken garanti er inkluderet?
The main unit has a one-year warranty, and accessories have a six-month warranty. Lifetime maintenance support is also available.
Is shipping included, and can you provide DDP?
Shipping is included for most destinations. DDP is available for selected countries; provide your country and postal code to confirm the delivery arrangement.
Konklusion
Dual-frequency monopolar RF provides additional ways to configure tissue heating. Its practical value depends on how frequencies, pulses, applicators, cooling, and controls work together.
For buyers, the equipment package matters just as much as the technical overview. The Mico Aes XERF Alternative Model combines 6.78MHz and 2MHz operation with 40 treatment tips, free training guidance, warranty coverage, and lifetime maintenance support.
Tell us your clinic type, country, postal code, and treatment requirements. Our team can provide the available configuration, current price, and shipping or DDP options.
Referencer
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.
