PREMIUM PERSONALIZED LIFTING
Low-Discomfort Monopolar RF Lifting, XERF
Restoring deep dermal density to smooth sagging, enhance elasticity, and refine fine lines simultaneously.
WHY XERF
Why Sinsa Kim Dongha Dermatology Chose XERF
XERF SYSTEM
“Rather than chasing temporary short-term effects,
I focus on results that bring true satisfaction even 6 months later.
This is why I introduced XERF.
- In consultations, many patients assume sagging can be corrected simply by lifting the skin. However, in your 30s and 40s, sagging begins when skin loses density and structural support weakens beneath the surface.
- To achieve natural, long-lasting results, we must rebuild the thinned dermis and fibrous septa from within.
- I chose XERF because its dual frequencies (6.78 MHz and 2 MHz) allow us to target both superficial and deep layers independently. By evaluating skin resistance (impedance) in real time, we can calibrate energy intensity for each zone, perfectly aligning with my philosophy of ‘Ethical & Precise Care.’
- Above all, it delivers an exceptionally comfortable experience with minimal discomfort, making it a treatment I recommend with complete confidence.”
Dr. Kim Dongha
Sinsa Kim Dongha Dermatology
WHY OUR XERF
What Makes XERF at Sinsa Kim Dongha Dermatology Distinct
Official XERF Key Opinion Leader (KOL)
As an official Key Opinion Leader (KOL) for XERF, Dr. Kim Dongha regularly conducts
hands-on clinical training and offers expert guidance to fellow medical professionals
on advanced energy delivery and manual techniques.
High-Comfort Lifting with 3-Stage Cooling
The ICD Cooling system lowers the skin’s surface temperature, while Wave Fit Pulse technology
delivers high radiofrequency energy deep into the dermis comfortably —
without topical numbing cream, heat discomfort, or pain.
Strategic Layering Protocols for Synergistic Results
XERF also works well on its own. For enlarged pores, we combine it with 1.5 mm Derma Ultherapy;
for stronger jawline definition, we combine it with options such as Shurink,
Ultherapy lifting, or Skin Botox to achieve three- to fourfold or greater synergy in a single session.
Custom Facial Mapping Based on Real-Time Resistance
Facial resistance and skin thickness vary significantly across the cheekbones, cheeks, and eye contours. Using real-time skin resistance (impedance) feedback, Custom Facial Mapping lets us gently treat delicate zones while focusing energy on areas of laxity to contour your face without volume loss.
Individually Tailored Treatment Depths
We diagnose whether laxity stems from fascia weakness, dermal density loss, or subcutaneous fat changes. By customizing the balance between 6.78 MHz and 2 MHz frequencies and treatment depth, your results stay refined for longer.
Up to 150J per Shot
Delivering higher energy per shot with minimal discomfort allows for noticeable skin tightening and density enhancement even with optimized shot counts.
Precision Lifting with Customized Treatment Tips
Featuring a patented multi-grid electrode pattern and 4 specialized tip designs, XERF allows precise energy delivery along facial contours, targeting specific skin concerns and fine lines without adverse effects.
BENEFITS
Expected Outcomes with XERF
Dual-frequency monopolar RF restores dermal density and firmness from the surface down to deep layers.
Jawline Sculpting & Jowl Reduction
Tightens sagging jowls and submental areas to restore a crisp, defined jawline contour.
Natural Volume & Firmness
Stimulates deep dermal collagen production to restore subtle volume in hollow cheeks and under-eye zones for a refreshed look.
Youthful Mid-Face Contours
Increases skin density and firmness in the midface, making the face appear shorter and more youthful.
Fine Lines, Texture & Pore Tightening
Refines uneven skin texture while tightening enlarged pores and smoothing fine lines.
Results Timeline
Immediately Post-Treatment
Subtle initial tightening
2 Weeks – 1 Month
Enhanced skin barrier function and radiant glow
2–3 Months
Peak lifting results
6–12 Months
Sustained results
IDEAL CANDIDATES
Is XERF Right for You?
Patients with thin, sagging skin or low facial fat seeking natural firming
Patients wanting to refine nasolabial folds and marionette lines, sagging jowls, or double chin lines
Patients experiencing blurring along the jawline due to skin laxity and drooping cheek contours
Patients whose faces look longer because of sagging in the midface
PRINCIPLE
How XERF Works
Rebuilding structural support by targeting the root causes of skin laxity with advanced precision.
Dual-Frequency Monopolar RF
Combining 6.78 MHz and 2 MHz frequencies delivers thermal energy multi-dimensionally across dermal and sub-dermal layers to enhance skin density.
Immediate Contraction & Collagen Remodeling
Thermal energy immediately contracts aged collagen fibers for initial tightening, subsequently stimulating fibroblasts to generate new collagen and elastin.
Structural Firmness & Support
Rather than destroying fat cells, XERF contracts and reinforces the fibrous septa — the structural framework within sub-dermal layers — supporting facial volume from deep within.
OUR PROCESS
Our 5-Step Treatment Process
From consultation to post-treatment care, Dr. Kim Dongha oversees every step of your journey.
STEP 1
Doctor’s Consultation
Listening carefully to your skin concerns and goals
STEP 2
Skin Diagnostics
Assessing skin thickness, density, and laxity levels using diagnostic tools
STEP 3
Personalized Treatment Mapping
Calculating precise shot counts required for each facial zone
STEP 4
Treatment
Performed directly by Dr. Kim Dongha, adjusting depth and energy in real time
STEP 5
Aftercare
Calming skin care, progress review, and personalized home care guidance
TREATMENT INFO
At-a-Glance Summary
| Item | Details |
|---|---|
| Duration | Approx. 30 to 60 minutes (varies by treatment area) |
| Numbing & Comfort Care | Topical numbing cream |
| Downtime | Virtually none, return to daily activities immediately |
| When to Expect Results | Subtle tightening immediately; noticeable improvements in firmness and density within 1 to 3 months |
| Treatment Interval | Every 6 to 12 months (adjusted based on individual skin condition) |
※ Individual treatment outcomes and recovery periods may vary depending on skin condition.