Cynosure Lutronic's XERF treatment, which is the world’s first multifrequency monopolar radio frequency (RF) system, has quickly garnered attention in the aesthetics space as a standout non-invasive skin tightening treatment, with Hollywood insiders Naomi Watts plus Kim and Khloe Kardashian recently trying and loving it, the company reports.
This beauty and wellness innovation comes at time where growing demand for next-gen, no-downtime skin treatments is on a rise, as the compound annual growth rate (CAGR) from 2023 to 2030 for the non-invasive market is forecasted at 15.4%[1].
The monopolar RF treatment device combines 6.78 MHz and 2 MHz frequencies, delivering energy at multiple tissue depths, including to heat the fibrous septa for reportedly lasting tightening effects.
This enables providers to target skin laxity and improve overall skin quality without needles, surgery, or downtime for immediate and lasting results, aligning perfectly with what audiences are increasingly seeking: effective, non-invasive solutions that fit into real-life schedules.
The treatment offers:
- Visual transformation: Before-and-after results with compelling visuals
- Trending category: Non-invasive, tech-forward treatments are one of the fastest-growing areas in beauty and wellness
- Relatable appeal: Everyone wants to look as good as they feel and XERF taps directly into that sentiment
To better understand what distinguishes multifrequency RF from conventional monopolar RF—and what it could mean for aesthetic practices—MedEsthetics spoke with Cynosure about the science behind the technology, ideal patient candidates, combination treatment protocols and why non-invasive skin tightening continues to gain momentum.
How would you describe XERF in simple clinical terms to a provider already familiar with RF devices?
"For a provider already familiar with RF devices, the XERF™ system can be described as a first-of-its-kind multifrequency monopolar RF technology that combines two frequencies (6.78 MHz and 2 MHz) in a single shot to deliver energy across multiple tissue depths simultaneously. The XERF™ system utilizes advanced multifrequency RF energy to target shallow, middle and deep tissue layers in a customized manner, supporting skin tightening and collagen building. With multiple depth settings and energy levels, providers can tailor treatments to each patient's unique skin needs, while Accurate Impedance Feedback technology performs real-time skin analysis to support precise and personalized energy delivery. Combined with Wave Fit™ pulse technology and Integrated Cryogen Delivery (ICD), which cools the skin with each pulse, the XERF™ system is designed to provide a comfortable, safe, and effective treatment experience without numbing, needles or downtime." – Cynosure Lutronic
What makes XERF meaningfully different from existing monopolar RF technologies?
"The XERF system is the world’s first multifrequency monopolar radiofrequency (RF) treatment. It represents a shift from single-depth, single-frequency monopolar RF treatments to a more comprehensive, layered approach to structural skin tightening. By combining two frequencies in a single platform, the XERF™ treatment is designed to go beyond the surface-level to remodel the structure and foundation of tissue to support firmness deep from within – Cynosure Lutronic
What is happening at the tissue level during treatment, and how does multifrequency delivery change outcomes?
"Providers can deliver energy to multiple depths, selectively heating the fibrous septa for immediate and lasting skin tightening results. The XERF system harnesses a proprietary multifrequency RF technology that can remodel the structure of tissue to restore firmness subdermally through collagen and elastin thickening, strengthening and shortening. The result is firmer, more youthful-looking skin that continues to improve over time." – Cynosure Lutronic
What skin concerns is XERF best suited to treat (and where do you see its strongest clinical use cases)?
"XERF is designed to tighten the appearance of sagging skin on the face and neck. It is a great option for patients who want visible tightening but prefer to avoid needles or downtime. Because it’s appropriate for all skin types and offers multiple depth settings and energy levels, the treatment can be tailored to each patient’s unique skin profile for a truly personalized experience. Patients should consult with a qualified healthcare professional to determine if a XERF treatment is right for them." – Cynosure Lutronic
What does a typical treatment feel like for the patient, and how is comfort managed without compromising efficacy?
"A typical XERF treatment is designed to be comfortable, with patients often describing the sensation as a gradual warming of the skin. Comfort is managed through the system's proprietary Wave Fit™ Pulse Technology and Integrated Cryogen Delivery (ICD), which balance RF energy delivery with continuous cooling to help maintain therapeutic temperatures while protecting the skin surface. This allows providers to deliver effective skin-tightening and collagen-stimulating treatments without the need for numbing, needles, or downtime." – Cynosure Lutronic
What kind of results are providers seeing, and over what timeframe do they typically develop?
"Providers are seeing both immediate and lasting skin tightening results with XERF. Patients often notice a tighter feeling in their skin right after treatment, while collagen rebuilding continues over the following weeks and months. The number of sessions needed varies based on your skin’s condition and your personal goals. Your provider will work with you to create a customized treatment plan for optimal results. That said, we recommend two treatments 6-8 weeks apart for optimal effectiveness." – Cynosure Lutronic
Who is the best candidate for XERF and who is not an ideal fit?
"The XERF treatment is ideal for people noticing signs of aging such as a less defined jawline, sagging skin, or loss of firmness in the face and neck. It also fits well for patients who prioritize preventative or maintenance-based treatments, want gradual, natural-looking improvement, and prefer non-invasive options with no downtime. The XERF™ treatment is generally not an ideal fit for patients with significant or advanced skin sagging where structural support has already been substantially compromised, and surgical treatment would be more appropriate." – Cynosure Lutronic
How does XERF compare to legacy monopolar RF systems in terms of outcomes or treatment efficiency?
"Compared with legacy monopolar RF systems, XERF introduces multifrequency RF delivery, customizable depth control, and advanced cooling technology designed to enhance both treatment precision and patient comfort. The system delivers energy across multiple tissue depths in a single treatment while maintaining therapeutic temperatures through Wave Fit™ Pulse Technology and Integrated Cryogen Delivery (ICD). Because treatments can be performed without numbing, providers may benefit from shorter treatment-room times while still delivering the skin-tightening and collagen-remodeling effects associated with monopolar RF technology." – Cynosure Lutronic
How is XERF being integrated into combination protocols with injectables, lasers, or other energy devices?
“XERF has become a cornerstone of many of my combination treatment plans because it addresses skin laxity in a way that complements—rather than competes with—injectables and resurfacing technologies. I frequently pair XERF with neuromodulators and biostimulatory injectables to address both dynamic aging and structural support, while combining it with lasers to improve skin texture, pigmentation, and overall skin quality. By treating multiple layers of the aging process simultaneously, we’re able to achieve more comprehensive and natural-looking rejuvenation without surgery or downtime.” – Dr. Walter J Joseph, Board Certified Plastic Surgeon.
How easily does XERF fit into a typical medspa or dermatology workflow, including setup and treatment planning?
"From a workflow perspective, XERF™ is designed to be straightforward for both providers and patients. The platform's customizable depth and energy settings support personalized treatment planning, while Wave Fit™ Pulse Technology and Integrated Cryogen Delivery (ICD) eliminate the need for numbing, reducing preparation time and overall room utilization. Patients can typically resume normal activities immediately after treatment, making scheduling and integration into a typical medspa or dermatology practice highly efficient. Beyond the technology itself, Cynosure Lutronic supports implementation with comprehensive virtual and personalized in-office clinical training, industry expert practice development consultants, dedicated patient support resources, turnkey marketing tools, and technical support teams, helping practices integrate XERF smoothly and confidently into their existing workflows." – Cynosure Lutronic
Why do you think non-invasive skin tightening continues to grow in demand right now?
“Patients today are looking for meaningful, visible results without the recovery, expense, or commitment associated with surgery. Many want to maintain a youthful appearance proactively rather than waiting until they require a facelift or other invasive procedure. Advances in technology have also raised patient expectations—people are no longer satisfied with subtle improvements. They want treatments that deliver real lifting and tightening while fitting into their busy lifestyles, and that’s exactly where non-invasive skin tightening has found its sweet spot.” – Dr. Walter J Joseph, Board Certified Plastic Surgeon.
"Non-invasive skin tightening continues to grow in demand because patients want visible, natural-looking results without the downtime associated with more invasive procedures. At the same time, the global influence of K-beauty has elevated interest in advanced, technology-driven approaches to skin health and aging. Korean aesthetic innovations have long been at the forefront of the energy-based device market, and that reputation for innovation has helped generate excitement around next-generation technologies like XERF – which originated in Korea. As aesthetic consumers become more educated and proactive about skin health, comfortable treatments that can deliver visible improvement while fitting seamlessly into busy lifestyles continue to gain traction. As patients become more proactive about maintaining collagen and skin quality, treatments that combine efficacy, comfort, and convenience continue to gain momentum." – Cynosure Lutronic
What does XERF signal about the next evolution of energy-based skin tightening technologies?
“XERF represents a shift toward smarter energy delivery that prioritizes both efficacy and patient experience. Historically, providers often had to choose between patient comfort and clinical outcomes. XERF demonstrates that we can achieve meaningful tissue remodeling while maintaining a comfortable treatment experience and no downtime. I believe the future of energy-based devices will focus on delivering higher-performance results through more precise, efficient energy delivery, allowing us to treat deeper structures while improving safety, predictability, and patient satisfaction.” – Dr. Walter J Joseph, Board Certified Plastic Surgeon.
"XERF signals a broader shift toward smarter, more personalized energy-based treatments that prioritize both efficacy and patient experience. As we've seen with many innovations coming out of Korea's aesthetics industry, the focus is increasingly on advanced technology that can deliver meaningful results with greater comfort, efficiency, and customization. With its multifrequency RF platform, customizable treatment depths, and integrated cooling, XERF represents how the category is evolving beyond traditional one-size-fits-all approaches toward more tailored, patient-centric skin tightening solutions." – Cynosure Lutronic
