WooYoo Medical Aesthetics Is an Official XERF Provider in Los Angeles
- Woo Yoo
- Jul 27
- 8 min read
When choosing a provider for an advanced energy-based treatment, the device itself is only one part of the equation. The provider’s training, treatment experience, understanding of facial anatomy, and ability to customize the procedure are equally important.
WooYoo Medical Aesthetics is proud to be officially listed by Cynosure Lutronic as a XERF provider in Los Angeles. Our clinic is located in the heart of Los Angeles Koreatown, where our Korean-American medical aesthetics team combines advanced Korean beauty technology with individualized, medically guided care.
As of July 2026, our team has performed more than 500 XERF treatments, giving us extensive hands-on experience with a wide range of facial structures, skin types, ages, and treatment goals.
WooYoo’s official Cynosure Lutronic listing identifies our Los Angeles location and confirms XERF among the products owned by our practice.
What Does It Mean to Be an Official XERF Provider?
Being an official XERF provider means that WooYoo Medical Aesthetics operates an authentic XERF system and is listed in the official Cynosure Lutronic provider directory.
The manufacturer’s directory lists:
WooYoo Medical Aesthetics
505 S. Virgil Avenue, Suite 106, Los Angeles, CA 90020
XERF™ as a product owned by the practice
Skin-tightening and radiofrequency treatment categories
Patients can independently verify our clinic through the official Cynosure Lutronic website rather than relying only on information published by our own practice.
WooYoo Medical Aesthetics is listed in the official Cynosure Lutronic provider directory as a Los Angeles XERF provider.
Our XERF Providers Complete Official Manufacturer Training
Every WooYoo clinical team member who performs XERF treatments has completed the applicable official XERF education and hands-on training provided through Cynosure Lutronic’s training program.
The official training process includes education in areas such as:
Radiofrequency science and safety
Skin anatomy
XERF device operation
Patient screening and treatment suitability
Face and neck treatment protocols
Selection of treatment depth and energy
Stamping and sliding techniques
Patient comfort and cooling settings
Equipment maintenance and safety procedures
Pre-treatment and post-treatment care
The manufacturer’s training guide directs treatment providers to review the XERF Operator’s Manual and Quick Start Guide and complete programs covering skin anatomy, RF science and safety, and the XERF New User Training Program before hands-on training.
The recommended program also includes didactic education, machine maintenance review, and several hours of hands-on model training involving facial lines, full-face protocols, eyebrow lifting, and lower-face and neck laxity.
Our providers receive individual documentation confirming completion of the applicable XERF training. These certificates represent our commitment to manufacturer-directed device education, ongoing learning, and responsible treatment practices.
WooYoo’s clinical team participating in official XERF device and treatment training.
Hands-on XERF training includes facial assessment, treatment mapping, device settings and patient-comfort techniques.
Every XERF Treatment Is Customized
XERF is not a treatment that should be performed using one identical setting on every patient.
Facial anatomy, tissue thickness, skin laxity, sensitivity, treatment area and previous treatment history can all affect the treatment plan. The official XERF materials direct providers to determine the appropriate energy level, depth, treatment area and shot count according to the individual patient and to adjust treatment parameters based on tissue response.
At WooYoo Medical Aesthetics, each XERF appointment begins with an individualized assessment. Our providers evaluate areas such as:
Cheeks and midface
Lower face
Jawline
Jowls
Under-chin area
Neck
Eyebrow and upper-face area, when appropriate
Differences in tissue thickness between treatment zones
We then design the treatment pattern and select the appropriate settings based on the patient’s anatomy, comfort and goals.
The official manufacturer materials describe XERF as a multifrequency monopolar radiofrequency system with adjustable shallow, middle and deep settings. Its treatment design allows providers to tailor the treatment to different skin thicknesses and facial areas.
More Than 500 XERF Treatments Performed as of July 2026
Training establishes a foundation. Repeated clinical experience helps providers further develop treatment-planning skills, recognize differences in facial anatomy and customize procedures more precisely.
As of July 2026, WooYoo Medical Aesthetics has performed more than 500 XERF treatments.
Our XERF patients include people with different:
Ages
Skin types
Facial shapes
Degrees of skin laxity
Jawline and neck concerns
Treatment histories
Comfort levels
Desired levels of correction
Because a significant portion of our patients are Asian and Korean-American, our team has extensive experience evaluating facial proportions and aesthetic preferences commonly seen among Asian patients. At the same time, we welcome and treat patients of all backgrounds and skin types.
WooYoo Medical Aesthetics has completed more than 500 XERF treatments as of July 2026.
Korean Technology, Delivered by Koreatown K-Beauty Experts
XERF was developed by Lutronic, a medical-aesthetic technology company headquartered in South Korea. The official XERF materials identify Lutronic Corporation’s location in Goyang, Gyeonggi-do, Republic of Korea.
XERF combines Korean aesthetic innovation with a treatment approach designed around structural skin tightening and individualized energy delivery. Cynosure Lutronic describes the system as an advanced multifrequency monopolar RF platform capable of treating shallow, middle and deep tissue layers.
WooYoo Medical Aesthetics is located in Los Angeles Koreatown, making us uniquely positioned to connect Korean aesthetic technology with the expectations of patients seeking authentic K-beauty expertise in the United States.
Our team understands that Korean aesthetic care often emphasizes:
Natural-looking improvement
Refined facial contours
Balanced proportions
Prevention and maintenance
Gradual collagen remodeling
Combination treatments customized to the individual
Results that do not make the patient look overtreated
Our goal is not to apply the same beauty standard to every patient. It is to preserve each patient’s natural features while addressing the specific areas that concern them.
We Continue Advanced Training in Korea Every Year
Technology and treatment techniques continue to evolve. For that reason, our education does not stop after the initial device training.
Members of the WooYoo team return to Korea each year for advanced aesthetic education and hands-on training. These visits allow us to stay connected with evolving Korean treatment trends, combination protocols and patient-centered techniques.
We bring that knowledge back to our Los Angeles practice while continuing to follow applicable U.S. medical standards, manufacturer guidance and professional scope-of-practice requirements.
This combination of official U.S. manufacturer training, extensive clinical experience and continuing Korean aesthetic education is central to the way we provide XERF treatments at WooYoo.
Our XERF Training Certificates
Below are training-completion certificates received by members of our clinical team after participating in the applicable official XERF education.
These documents demonstrate that our treatment providers have completed manufacturer-directed education related to XERF operation and treatment protocols. Clinical decisions are still made by licensed medical professionals following an individual consultation, medical assessment and applicable professional standards.
XERF training-completion certificate - Ellie Woo, NP
Our training included both didactic education and hands-on treatment protocols for the full face, lower face and neck.
Why Provider Experience Matters With XERF
XERF includes multiple depth and energy options, so proper assessment and treatment design matter.
A treatment provider must consider:
Which facial or neck areas should be treated
How treatment shots should be distributed
Which depth is appropriate for each area
How the patient’s tissue thickness affects settings
How to maintain complete handpiece contact
How to adjust treatment according to patient feedback
How to avoid unnecessary overlapping of energy
Whether the patient is an appropriate candidate
Manufacturer materials emphasize individualized parameter selection, proper contact, patient screening and adjustments according to the patient’s skin reaction and treatment location.
At WooYoo, we combine these principles with our experience from more than 500 treatments to create an individualized plan for each patient.
What Is XERF?
XERF is a noninvasive radiofrequency treatment from Cynosure Lutronic. The system uses multifrequency monopolar RF energy and allows treatment at shallow, middle and deep settings.
According to Cynosure Lutronic, XERF incorporates Wave Fit™ pulse technology and Integrated Cryogen Delivery cooling to support a personalized and comfortable treatment experience. The treatment does not involve needles and is promoted as requiring no numbing and no downtime.
Patients commonly seek a XERF consultation for concerns involving:
Skin laxity
Loss of jawline definition
Jowls
Lower-face heaviness
Neck laxity
Reduced skin firmness
A desire for nonsurgical facial rejuvenation
Not every patient is a candidate, and expected results vary according to age, anatomy, skin condition, treatment settings and number of sessions.
Who Performs XERF at WooYoo Medical Aesthetics?
XERF treatments at WooYoo are performed by appropriately licensed clinical professionals who have completed WooYoo’s required XERF device education and applicable manufacturer training.
Before treatment, we review relevant medical history and previous procedures. We then assess the face and neck, discuss the patient’s goals, design the treatment areas and determine an individualized protocol.
Our providers do not rely solely on a preset machine protocol. Settings and shot distribution are selected based on the patient’s anatomy and clinical assessment.
Why Patients Choose WooYoo for XERF in Los Angeles
Patients choose WooYoo Medical Aesthetics because we offer:
Official listing in the Cynosure Lutronic provider directory
Authentic XERF technology
Manufacturer-trained XERF treatment providers
Individual training-completion certificates
More than 500 XERF treatments performed as of July 2026
Annual continuing aesthetic education in Korea
Extensive experience with Asian facial anatomy and skin
A convenient Los Angeles Koreatown location
Customized face and neck treatment designs
Korean- and English-speaking care
Experience combining Korean aesthetic principles with U.S. medical practice standards
Our focus is not simply owning the newest device. We invest in education, treatment experience and personalized planning so that the technology can be used thoughtfully and responsibly.
Verify WooYoo as an Official XERF Provider
Patients can verify WooYoo Medical Aesthetics directly through the official Cynosure Lutronic provider directory:
Official provider listing:WooYoo Medical Aesthetics — Cynosure Lutronic Provider Directory
The listing identifies WooYoo Medical Aesthetics at 505 S. Virgil Avenue, Suite 106, Los Angeles, California 90020, and lists XERF among the products owned by the practice.
Patients may also review the supporting XERF training documentation below:
View the XERF Training Confirmation PDF
The materials cover manufacturer-directed prerequisites, RF science and safety, patient selection, treatment protocols and hands-on training recommendations.
Schedule a XERF Consultation in Los Angeles
A consultation is the best way to determine whether XERF is suitable for your face, jawline or neck and whether it should be performed alone or as part of a customized treatment plan.
WooYoo Medical Aesthetics505 S. Virgil Avenue, Suite 106Los Angeles, CA 90020Located in Los Angeles KoreatownPhone: (213) 674-7287
Contact WooYoo Medical Aesthetics to schedule a personalized XERF consultation with our manufacturer-trained K-beauty medical aesthetics team.
Individual results vary. A consultation and medical screening are required. Treatment recommendations depend on anatomy, skin condition, medical history and individual goals.
FAQ
Frequently Asked Questions
Is WooYoo Medical Aesthetics an official XERF provider?
Yes. WooYoo Medical Aesthetics is listed in the official Cynosure Lutronic provider directory. The listing identifies our Los Angeles location and lists XERF among the products owned by our practice.
Where can I find an official XERF provider in Los Angeles?
WooYoo Medical Aesthetics is an official XERF provider located at 505 S. Virgil Avenue, Suite 106, in Los Angeles Koreatown. Patients can verify the clinic through Cynosure Lutronic’s official provider directory.
Are WooYoo’s XERF providers officially trained?
Yes. WooYoo requires clinical team members who perform XERF treatments to complete applicable official manufacturer education and hands-on training. Providers receive documentation confirming completion of their respective training.
How many XERF treatments has WooYoo performed?
WooYoo Medical Aesthetics has performed more than 500 XERF treatments as of July 2026.
Is XERF a Korean treatment?
XERF was developed by Lutronic, a medical-aesthetic technology company headquartered in South Korea. WooYoo combines this Korean-developed technology with official manufacturer education and ongoing aesthetic training in Korea.
Does WooYoo have experience treating Asian patients with XERF?
Yes. WooYoo is located in Los Angeles Koreatown, and a significant portion of our patients are Asian or Korean-American. Our providers have extensive experience customizing treatments according to different facial structures, tissue thicknesses and aesthetic goals.
Does WooYoo return to Korea for additional training?
Yes. Members of the WooYoo team participate in continuing aesthetic education in Korea each year to stay informed about evolving Korean treatment techniques and aesthetic trends.
Is every XERF treatment performed with the same settings?
No. Treatment depth, energy, cooling, treatment pattern and shot distribution may be adjusted according to the patient’s anatomy, tissue thickness, treatment area, response and comfort.
Does XERF require needles or numbing?
XERF is a noninvasive radiofrequency treatment that does not use needles. Cynosure Lutronic describes it as a treatment with no numbing, no needles and no downtime. Individual comfort and post-treatment reactions may vary.
How do I schedule a XERF consultation at WooYoo?
Patients can contact WooYoo Medical Aesthetics at (213) 674-7287 to schedule a consultation at our Los Angeles Koreatown clinic.