What Is XERF? A Complete Guide to XERF Skin Tightening in Seoul (2026)
xerf forena clinic xerf how it works xerf main points xerf tip forena clinic xerf timeline xerf time procedure xerf timeline xerf tips forena clinic xerf depths frequencies xerf faq xerf cta forena clinic directions
XERF is a next-generation non-invasive skin-tightening treatment developed by Cynosure Lutronic. It is the world’s first multifrequency monopolar radiofrequency system, designed to deliver controlled heat to multiple layers of the skin in a single session. By combining two frequencies — 6.78 MHz and 2 MHz — XERF can target both the superficial dermis and deeper structural layers, including areas close to the SMAS (the same layer surgeons address during a facelift).
This dual-frequency approach allows for both immediate collagen contraction and progressive long-term collagen remodeling, resulting in firmer, tighter, and more lifted-looking skin without surgery, needles, or downtime.
How XERF Works
Traditional radiofrequency devices usually operate at a single frequency, which limits the depth they can effectively treat. XERF solves this by delivering two frequencies simultaneously:
6.78 MHz focuses more on the superficial and mid-dermal layers, improving skin texture, firmness, and fine lines.
2 MHz reaches deeper tissue, supporting structural tightening and contour improvement, particularly around the jawline and lower face.
The controlled heat causes existing collagen fibers to contract for an immediate tightening effect, while also stimulating fibroblasts to produce new collagen and elastin over the following weeks and months. Built-in cooling technology and real-time impedance feedback help keep the treatment comfortable and consistent.
At our clinic, we primarily use the Effector 60 tip for facial treatments. This tip is designed for efficient coverage of the cheeks, jawline, and lower face while maintaining stable energy delivery.
What to Expect During Treatment
A typical XERF session for the face takes approximately 30-40 minutes, depending on the number of shots and treatment area. A grounding pad is placed on the back, conductive gel is applied, and the handpiece is moved systematically across the treatment zones.
Most patients describe the sensation as warm pulses rather than sharp pain. Thanks to the integrated cooling system, numbing cream is usually not required. After the session, mild redness or warmth may appear, but this typically settles within a few hours. There is essentially no downtime, and patients can return to normal activities, including applying makeup, the same day.
Our XERF Protocol & Pricing at Forena Clinic
Treatment | Price |
XERF 100 shots | 385,000 won |
XERF 600 shots | 2,200,000 won |
XERF 300 shots + ONDA 60,000J | 1,760,000 won |
XERF 300 shots + ONDA 100,000J | 2,090,000 won |
XERF 600 shots + ONDA 100,000J | 3,135,000 won |
Special Benefit
For treatments of 600 shots or more, we provide:
An official XERF Certificate
One Maximizer Lotion for aftercare
Expected Results Timeline
Results from XERF develop gradually as collagen remodeling takes place:
Immediately after treatment: Many patients notice a subtle lifting and tighter sensation due to collagen contraction.
1–3 months: Progressive improvement in firmness and contour becomes more visible.
3–6 months: Peak results are typically observed as new collagen matures.
Around 12 months: Results generally last about a year, after which maintenance sessions can be considered.
Individual results vary depending on age, skin condition, lifestyle, and the number of shots delivered.
Who Is a Good Candidate for XERF?
XERF is best suited for individuals with mild to moderate skin laxity who want noticeable improvement without surgery or recovery time. Common concerns treated include:
Softening of the jawline
Early jowls
Loose skin on the neck
Overall loss of facial firmness
Desire for preventative collagen support
It is not a substitute for a surgical facelift in cases of significant excess skin. A consultation is recommended to determine whether XERF is the most appropriate option.
Frequently Asked Questions
Is XERF painful?
Most patients rate the discomfort as low (typically 1–3 out of 10). The built-in cooling system makes the experience more comfortable than many other energy-based treatments.
How many sessions are needed?
Some patients achieve satisfactory results with a single session. Others may benefit from a second session spaced 4–6 weeks apart, depending on their goals and skin condition.
Is there any downtime?
There is essentially no downtime. Mild redness or warmth may last a few hours, but most people resume normal activities immediately.
Can XERF be combined with other treatments?
Yes. XERF is often combined with other modalities such as ONDA for enhanced contouring and skin quality. Combination packages are available at our clinic.
How long do results last?
Results typically last around 12 months. Maintenance treatments can help prolong the benefits.
Visiting Forena
Forena Clinic – Foreigner-Friendly Skin & Aesthetic Clinic in Seoul
📍 Address
7th Floor, 140 Yanghwa-ro, Mapo-gu, Seoul, South Korea
(5-minute walk from Hongdae Station Exit 9)
🌐 Website
📱 Social Media
• Facebook: @forenaclinicglobal
• TikTok: @forenaclinic
• Instagram: @forenaclinic
• YouTube: @forenaclinic
General information, not a diagnosis or a treatment recommendation. Individual response differs and every procedure carries possible side effects. Your treatment plan is confirmed by a our team before anything is carried out.
Comments