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A Guide to Barry Keoghan's Viral Lifting: XERF Before & After
- 2026.10.30
Key Summary
XERF is a Korean dual-wave radiofrequency (RF) skin-tightening treatment that helps firm mild sagging and sharpen jawline and cheek contours without scalpels, needles, or extended downtime. Results begin with an immediate tightening effect on Day 0, build toward peak definition over 1 to 3 months, and typically last 6 to 12 months. This column compares XERF with Thermage FLX and Ultherapy Prime and explains how to choose a XERF clinic in Seoul.
Hi, we are Cha.I Clinic, your boutique medical aesthetic sanctuary nestled between the vibrant avenues of Hongdae and Hapjeong in Seoul.
Do you know that lately, Hollywood has experienced the craze of Korean skin treatment? From a more sculpted jawline to firmer-looking skin, famous celebrities and beauty enthusiasts, like Barry Keoghan and Kim Kardashian, are exploring advanced skin-tightening technologies that promise to enhance facial contours without surgery, but with instant results.
Among the treatments gaining attention is XERF, an advanced radiofrequency (RF) skin-tightening treatment originating from Korea.
Barry Keoghan, the actor of Dunkirk and the ex-boyfriend of Sabrina Carpenter also got XERF to gain more confidence in how he looks. After the treatment, he said, “I feel better about myself. I look better.”
Image Source: Nilam Holmes Clinic - XERF for Barry Keoghan
Kim Kardashian, the pioneer of beauty and self-care, was seen getting XERF during her visit to Seoul, saying that it is her new favorite tightening treatment.
Image Source: Kim Kardashian Instagram Story
With its growing presence in conversations surrounding Korean aesthetic treatments, XERF is becoming a treatment worth knowing about for anyone interested in achieving a more lifted, defined, and youthful-looking appearance. But what exactly is XERF, how does it work, and why is Seoul becoming a destination for those exploring the latest Korean skin-tightening treatments?
We will explore that in today’s column.
What You'll Learn in This Article
- What Is XERF Treatment?
- Why Choose XERF?
- XERF Before and After: What Results Can You Expect?
- How Is XERF Different from Other Famous Lifting Treatments (Thermage and Ultherapy)?
- XERF Before and After: What Do the Results Look Like?
- How to Choose the Best Clinic for XERF in Seoul
- Treat Yourself to the Best XERF Experience at Cha.I Clinic
What Is XERF Treatment?
XERF is a non-invasive skin-tightening and contouring medical device engineered to restore dermal density, lift mild laxity, and refine facial contours without scalpels, needles, or extended downtime.
XERF harnesses radiofrequency (RF) energy, which operates independently of skin color. Its dual-wave delivery delivers:
6.78 MHz: Rejuvenates the superficial to middle papillary dermis, smoothing fine crepiness and enhancing natural light reflection.
2.0 MHz: Reaches into the deeper reticular dermis and structural septa, inducing immediate thermal contraction and sustained neocollagenesis.
Why Choose XERF?
Unlike treatments that focus primarily on adding volume, XERF uses advanced radiofrequency (RF) technology to help tighten the skin and improve facial contours. It is designed for people who want a firmer, more defined appearance without undergoing surgery.
XERF may be particularly suitable for people who:
Notice early signs of sagging: Such as less-defined jawlines, loose cheeks, or mild skin laxity.
Want a sharper, more defined face: Especially those concerned about their jawline and lower-face contours.
Prefer natural-looking results: For people who want firmer-looking skin without adding facial volume.
Have busy schedules: Those who prefer a non-surgical treatment with minimal downtime.
Want to address skin laxity as they age: Particularly those noticing reduced skin firmness and elasticity.
The best treatment approach depends on each person's skin condition, facial structure, and individual concerns.
How Is XERF Different from Other Famous Lifting Treatments (Thermage and Ultherapy)?
Choosing the right lifting treatment depends on your skin condition and aesthetic goals. But what if you could enjoy some of the most sought-after benefits of both Thermage and Ultherapy in one treatment?
That's where XERF stands out.
And XERF does not let you worry about pain, discomfort, and downtime. It also gives you relatively a more instant result. Let’s compare it with the other two lifting treatments.
XERF Before & After: What Results Can You Expect?
Understanding the biological cascade of radiofrequency heating sets clear, honest expectations. Collagen does not regenerate overnight; it undergoes an organized thermal healing process.
Day 0 (Immediate Aftermath)
Right after a session, patients frequently step into our powder room to find an immediate "lit-from-within" firmness. The heat instantly contracts helical collagen structures, compacting the tissue matrix. Mild, rosy flushing is standard, resolving within 1 to 3 hours, leaving no tracks, puncture wounds, or peeling skin.
Weeks 2 to 4 (The Awakening Phase)
As microscopic thermal micro-zones stimulate wound-healing signals, fibroblasts actively produce fresh pro-collagen. You will notice that makeup glides on more evenly, skin bounces back rapidly to the touch, and subtle laxity along the nasolabial borders appears cushioned and supported.
Months 1 to 3 (Peak Structural Definition)
This is where true structural remodeling manifests. Deep collagen bundles cross-link and thicken, consolidating the subcutaneous matrix. The lower facial third looks distinctly more chiseled, submental heaviness recedes, and the skin exhibits healthy tension and elasticity that endures for 6 to 12 months, depending on personal lifestyle and biological age.
XERF Before and After: What Do the Results Look Like?
Wondering what kind of difference XERF can make?
Take a look at this before-and-after result to see the visible changes in skin firmness and facial contours following XERF treatment.
Notice how the cheek and jaw area looks more lifted and defined, with a firmer-looking appearance.
Individual results may vary depending on skin condition and treatment settings.
How to Choose the Best Clinic for XERF in Seoul
Choosing the right clinic for XERF is just as important as choosing the right lifting treatment.
Here are five things to look for when choosing a XERF clinic in Seoul:
1. Detailed Skin Analysis
Look for clinics that offer comprehensive skin assessments, such as 3D skin analysis and skin hydration measurements, to better understand your skin condition before treatment.
2. Personalized Doctor Consultation
Every face is different. Choose a clinic where the doctor takes time to understand your concerns, evaluate your facial structure, and recommend treatment settings based on your individual needs.
3. Experienced Doctor
The doctor's experience matters. Look for qualified medical professionals with extensive clinical experience and relevant expertise in XERF treatments.
4. Dedicated Foreigner Support
For international visitors, clear communication is essential. Look for clinics that offer foreign-language assistance, transparent pricing, and support throughout your visit.
5. Thoughtful Post-Treatment Care
A good clinic should also prioritize aftercare, providing appropriate soothing treatments and guidance to help support your skin after the procedure.
Looking for a clinic that brings all these elements together?
Cha.I Clinic, located near Hongdae in Seoul, offers comprehensive skin analysis, personalized doctor consultations, experienced medical care, dedicated support for international patients, and thoughtful post-treatment care — helping make your XERF experience more comfortable and personalized.
Treat Yourself to the Best XERF Experience at Cha.I Clinic
At Cha.I Clinic, we reject one-size-fits-all treatments. Every XERF lifting protocol at Cha.I begins with detailed skin analysis and a one-on-one medical evaluation. We examine facial dynamics, vector angles, and structural anatomy to calibrate exact dual-wave frequencies—ensuring you achieve a defined, elegant contour while safeguarding your natural facial harmony.
Ready to uncover your most defined, luminous contour?
Whether you are visiting Seoul for a weekend getaway or an extended stay, Cha.I Clinic is dedicated to revealing your most confident, luminous self. Experience gentle precision, luxury comfort, and natural results designed specifically for your skin.
Connect with our English-speaking team at Cha.I Clinic to reserve your private skin analysis in Hongdae today.
No two people have the same skin.
CHA.I proposes beauty tailored to you.
Dr. Wonjin Jo, Chief Director of CHA.I Clinic
- Thermage FLX Master Course — Extensive clinical experience since the early introduction of Thermage in Korea
- Rejuran & Jetema Expert Certification — Proven expertise through official Expert training
- Selected as a XERF Ambassador — Sharing clinical experience as an official manufacturer ambassador
- Board-certified Family Medicine Specialist
- Former Director, Cheongdam BLS Clinic
- Distinguished Member, Korean Association for Laser, Dermatology and Trichology
- Full Member, Korean Lifting Research Association
- Full Member, Korean Society for Clinical Skin Care
- Certified Obesity Specialist, Korean Academy of Obesity & Aesthetic Treatment
- Member, Korean Society for the Study of Obesity and Body Shape
- Lifetime Member, Korean Society for the Study of Obesity
CHA.I Clinic adheres to genuine products and correct dosages, pursuing natural changes that enhance your inherent beauty.
CHA.I Clinic is recommended for those who want
- Care personally overseen by the medical director, from consultation through treatment
- An accurate diagnosis of the underlying causes of recurring skin concerns
- Only the treatments they truly need, without unnecessary recommendations
"Dr. Wonjin Jo's Guide to Skin Care & Treatment Tailored to You"
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