XERF has joined the treatment menu at Toxnfill Gangnam Main Branch, with November launch offers starting at ₩649,000 including VAT (₩590,000 before VAT). If you are considering it during a Seoul trip, the useful questions are straightforward: what does the treatment do, what will your appointment cost, and how will it fit around the rest of your plans?
Partner disclosure: Toxnfill Gangnam Main Branch is a partner of PIN-AGENCY KOREA, which publishes Korea Unboxed. Prices below come from the clinic’s published menu.
Meet Toxnfill Gangnam Main Branch
Toxnfill Gangnam Main Branch is a skin and aesthetic clinic near Gangnam Station Exit 10. Its menu includes XERF and combination treatments such as XERF with Ultherapy Prime. This article focuses on the November XERF launch offer. For a fuller introduction, appointment planning and directions, read our clinic guide.
Explore our Toxnfill Gangnam clinic guide
What is XERF?
XERF, written 세르프 on Korean menus, is a non-invasive monopolar radiofrequency device. A clinician moves a treatment tip over the skin to deliver controlled heat. The manufacturer describes its intended cosmetic effect as skin tightening through soft-tissue coagulation and collagen remodeling. It combines 6.78 MHz and 2 MHz energy, with adjustable settings and surface cooling.[1]
The practical point is personalization: the clinician should explain which areas they plan to treat and why those settings suit your skin and goals. Expected improvement depends on your skin, the treatment area and the clinician’s plan.
The device received U.S. FDA 510(k) clearance in August 2025 for electrocoagulation and hemostasis in dermatologic and general surgical procedures. Those terms describe tissue coagulation and controlling bleeding.[2]
XERF, broken down
XERF technology: manufacturer information
Kim Kardashian’s XERF video
Kim Kardashian shared a video about XERF as part of her red-carpet skin preparation. The post identifies a Cynosure Lutronic brand partnership with #cynosurelutronicpartner.
November launch prices, including VAT
The clinic lists these offers for November 5–30, 2026. Its advertised prices exclude 10% VAT. The totals below add that tax so you can compare the amount payable. Confirm eligibility and availability when booking; the Korean page identifies the offer for website-booking customers who add the clinic’s KakaoTalk channel.[3]
For a combination package, ask what each treatment contributes to your plan and whether both are appropriate. Ask for a written total covering your chosen treatment area and any additional services before consenting. A larger package should follow the consultation and your budget.
What should you expect from the appointment?
The manufacturer describes XERF as needle-free and designed to be used without numbing, with cooling during energy delivery.[1] Discuss comfort and the planned duration with the clinic, especially if you are adding another procedure. Leave room in your itinerary for consultation, preparation and aftercare instructions.
The clinic advises that temporary redness, swelling and mild pain may occur. Its published aftercare includes avoiding heavy drinking, strenuous exercise and hot baths or saunas for about a week, and using cool or lukewarm water and a gentle cleanser.[3] Get instructions for your actual treatment plan before leaving, including whom to contact if symptoms worsen or concern you.
Ask when the clinician expects to assess your result, how many sessions they recommend, and what follow-up is practical if you are leaving Korea soon. Individual responses and the time needed for improvement vary.
Five questions to take into the consultation
- Does this suit my concern? Explain what you hope to change and ask about reasonable outcomes, alternatives and risks. Discuss your health history, medication, implants and recent procedures with the clinician.
- What exactly is included? Confirm areas, shot counts, the VAT-inclusive total and any consultation or additional-service fees.
- How will you choose the settings? Ask how depth and energy are tailored to your skin and the area being treated.
- What is your equipment-safety check? Ask the clinic to confirm that treatment tips are outside affected recall lots and that applicable manufacturer safety actions have been completed.
- What happens after I leave Korea? Request written aftercare and a contact route for questions, follow-up and concerning symptoms.
The fourth question relates to an FDA recall record for specified XERF EFFECTOR 60 tip lots made between April 1 and August 20, 2025. The record remained open when checked for this guide and lists distribution including South Korea. It instructs recipients to stop using and return the affected tips. Ask Toxnfill to confirm which tips it currently uses and that any applicable manufacturer safety actions have been completed.[4]
Getting to Toxnfill Gangnam Main Branch
The clinic is at 415 Gangnam-daero, Daedong Building, floors 8, 10 and 11, near Gangnam Station Exit 10. Confirm your reception floor with your booking.[5]
For booking and the wider clinic visit, use our Toxnfill Gangnam guide. You can also check the official XERF menu and English consultation page. Request your preferred language and confirm the appointment before traveling.
Cynosure Lutronic on Kim Kardashian’s XERF post · Original Instagram reel
Sources
- Cynosure Lutronic: XERF device and treatment technology.
- FDA: XERF 510(k) clearance K251327, August 11, 2025.
- Toxnfill Gangnam Main: XERF launch menu, prices and aftercare.
- FDA: XERF EFFECTOR 60 recall Z-0146-2026.
- Toxnfill Gangnam Main: location and regular hours.
Sources checked November 14, 2026. This guide supports appointment planning; suitability and treatment decisions belong in a consultation with a qualified clinician.
