XERF is a radiofrequency device aimed at the dermis, and at ENTER Plastic Surgery in Seoul it is sold by shot count: 300 or 600 shots for the face, or 100 shots around the eyes. A session takes 30–60 minutes under numbing cream, and the clinic's guidance lets you fly the same day, so shot count and repeat timing are the points to weigh when looking at XERF in Korea.
What to weigh
Four questions that make XERF quotes comparable
XERF is a fairly recent device, and menus in Seoul describe it in different ways. These four questions turn a menu line into something you can compare.
Is the device named as XERF?
Radiofrequency tightening is sold under several device names. Ask that XERF is written on the quote so you know what you are paying for.
How are the shots split?
Face sessions come in 300 or 600 shots and the eye area in 100. Ask which zones of your face the shots will cover, and whether the eye area is a separate line.
How is heat kept in check?
Burns are a known risk of radiofrequency treatment. Ask how skin temperature is watched and whether passes are stacked on one spot.
When would a repeat be due?
Per the clinic's guidance, the effect lasts around 6 to 12 months, and repeats are spaced 6 to 12 months apart. Ask whether your plan assumes one session or a series.
Where to go
Best XERF in Seoul: Settings That Sell It, Side by Side
Radiofrequency lifting is available in very different settings across Seoul. The same device can be planned carefully or sold as a quick add-on, and the setting gives you a clue about which to expect.
| Setting | How XERF tends to be offered | Ask before booking |
|---|---|---|
| Plastic surgery clinic with a lifting menu | One option among devices and surgery | Why XERF and not an ultrasound device for my face? |
| Skin and laser clinic | Paired with lasers or skin boosters | Is XERF priced on its own line? |
| Device-only lifting clinic | Set shot packages, short slots | How long will my 300 or 600 shots take? |
| Agency or tour bundle | Bundled with other services | Which clinic performs it, and is the shot count shown? |
If a quote does not show the device name, the shot count and the area, ask for them before you pay a deposit.
Prices
XERF prices at ENTER Plastic Surgery for face and eyes
XERF is priced by the number of shots. Face sessions come in two sizes, and the eye area has its own 100-shot line, which can be booked alone or added to a face session as a separate item.
All three cards are amounts before tax. 10% VAT is added to the bill when you pay.
Prices exclude VAT (10% VAT is added at payment).
Your doctor
Chief Director · Korean board-certified plastic surgeon
“Natural, yet clearly visible change.”Eyelid and facelift surgery at ENTER is planned and performed by Dr. Jang himself.
- NowChief Director, ENTER Plastic Surgery
- TrainingPlastic surgery, Kyung Hee University Medical Center
- FormerChief Director, Jang Plastic Surgery
- FormerDirector, Secret Plastic Surgery
- MemberKSPRS · KSAPS · ISAPS · ESOPRS · ASPS
The device
XERF from Cynosure Lutronic
XERF is made by Cynosure Lutronic. It is a radiofrequency device: energy passes through the skin as heat, and the target is the dermis, the layer where collagen gives the skin its firmness. The aim is gradual tightening as that collagen remodels over the following months.
Research specific to XERF is still thin. The studies cited on this page concern other monopolar radiofrequency devices and are useful for understanding the method and its side effects, not as results for XERF itself.
By layer
Where XERF sits among the lifting options at ENTER Plastic Surgery
The clinic plans non-surgical lifting by the layer each device reaches. The table sets XERF beside two other devices on the same menu, using the clinic's own timing guidance. It describes what each one is aimed at and is not a ranking.
| Device | Energy and target layer | Session time | Effect lasts (guidance) |
|---|---|---|---|
| XERF | Radiofrequency, dermis | 30–60 minutes | About 6–12 months |
| Thermage FLX | Monopolar radiofrequency, dermis | 45–90 minutes | About 12–18 months |
| Ultherapy | Micro-focused ultrasound, SMAS layer | 30–60 minutes | About 12–18 months |
All three use numbing cream and allow same-day travel by the clinic's guidance. After XERF, redness, warmth and a throbbing feeling can last about a week. Botox or filler is recommended a week later, once the skin has calmed.
Research
What radiofrequency studies say about results and burns
The clearest warning in the research concerns heat. In a follow-up of 290 people treated on the face and neck with nonablative monopolar radiofrequency, redness and swelling were uncommon, but second-degree burns occurred somewhat more than in earlier reports. The authors advised moderate energy and avoiding immediate repeat passes on the same spot (De Felipe, 2007).
Expectations matter as much as settings. A 2005 review of monopolar radiofrequency suggested it may suit people who want to avoid surgery and recovery time, with improvement in the region of 5% to 20% and results that are hard to predict for any one person (Burns, 2005).
A 2025 randomized trial of 40 people found a newer monopolar device as effective and safe as Thermage CPT for lower-face tightening over six months (Wang, 2025). It used different devices from XERF, so it shows the method can work without telling you how XERF compares.
Contact the clinic promptly about:
- Blistering or a raw patch on the treated skin
- Redness or pain that grows after the first days
- A hard or dented area that does not settle
- Swelling that has not eased after a week
Your visit
Fitting XERF into a trip to Seoul
Because a session is short and needs no recovery stay, XERF works on a tight schedule. A few points help it sit well with the rest of your trip.
Book it early in the stay
Redness and warmth settle over about a week, so an early slot lets you see the skin calm before you leave.
Space out injections
If you want Botox or filler too, schedule them a week after XERF or on a separate visit.
Bring clear photos
Front and side photos of your face in daylight help the clinic suggest a shot count before you arrive.
Plan the next visit
With repeats 6 to 12 months apart, a return trip within the year keeps the plan on track.
The clinic sits on Gangnam-daero by Nonhyeon Station, with English-speaking staff on site. Send your photos and questions through the form on this page or on WhatsApp, and we will get back to you as soon as possible.
Evidence
Research behind this page
- Adverse reactions after nonablative radiofrequency: follow‐up of 290 patientsJournal of Cosmetic Dermatology · 2007 · De Felipe I et al. · doi:10.1111/j.1473-2165.2007.00322.x
In 290 people treated with nonablative monopolar radiofrequency, redness and swelling were uncommon, but second-degree burns were somewhat more frequent than in earlier reports; moderate energy settings were advised.
- Long‐Term Efficacy and Safety of a Novel Monopolar Radiofrequency Device for Skin Tightening: A Prospective Randomized Controlled StudyLasers in Surgery and Medicine · 2025 · Wang Z et al. · doi:10.1002/lsm.70002
A 40-person randomized trial found a newer monopolar radiofrequency device as effective and safe as Thermage CPT over six months; a different device, cited as method background.
- Thermage: Monopolar radiofrequencyAesthetic Surgery Journal · 2005 · BURNS J · doi:10.1016/j.asj.2005.09.017
A review of monopolar radiofrequency noting modest improvement of about 5% to 20% and results that are hard to predict, with clear expectation-setting needed.
FAQ
Asking about XERF in Korea: shots, safety and timing
What is XERF?
XERF is a radiofrequency device made by Cynosure Lutronic that heats the dermis with the aim of tightening the skin as collagen remodels. At ENTER Plastic Surgery it is offered for the face and the eye area, priced by shot count, and a session takes 30–60 minutes under numbing cream.
How many XERF shots are used for the face?
The clinic offers face sessions of 300 or 600 shots, plus a 100-shot session for the eye area. The right size depends on how much of the face is treated and how lax the skin is, so send photos and the suggested count will be shown on your quote.
How long does XERF last?
About 6 to 12 months, according to the clinic's guidance. Repeat sessions are planned 6 to 12 months apart. Results differ from person to person, and skin keeps aging, so the effect fades gradually.
Can I fly the same day after XERF?
Yes. The clinic's guidance allows same-day travel. Expect redness, warmth or throbbing for up to a week; none of that prevents flying. Report blistering or pain that keeps growing to the clinic rather than treating it yourself.
Can XERF cause burns?
It can, as with any radiofrequency treatment. In a follow-up of 290 people treated with nonablative monopolar radiofrequency, second-degree burns occurred somewhat more than in other studies, and the authors advised moderate energy and no immediate repeat passes on one spot.
Is the XERF eye treatment priced separately, and is VAT included?
It is a separate line, and VAT is not included. The 100-shot eye session is ₩400,000 before tax, and face sessions start at ₩1,100,000 for 300 shots. 10% VAT is added when you pay.
Can I have Botox or filler on the same day as XERF?
The clinic recommends waiting a week. After XERF the skin can stay red and warm for several days, and Botox or filler is planned once it has calmed. If your stay is short, book the injections on an earlier visit.
Google reviews
Reviews on Google Maps
Great experience! Dr. is very sweet and kind. He listened to what I wanted to fix and correct. He explained everything very well. Wasn’t pushy and didn’t try to sell anything extra. This isn’t a clinic that comes out on instagram, which I…
Jennifer LyuA month agoI came to Enter Plastic Surgery on a friend’s recommendation for under-eye fat repositioning. I was pretty nervous going in, but the doctor took the time to explain what would work for my under-eyes, what the procedure involved, and what…
Michael2 months agoThe staff are incredibly friendly, and the consultation was very thorough. I was very worried since it was my first procedure, but the director explained the aftercare in detail, so I felt completely confident trusting them!!
ROOHEUI SHIN (RHS)2 months ago · Translated by Google