XERF (Serf): How It Works, Who It Suits and Recovery

What is XERF (Serf)?

XERF is a monopolar radiofrequency device that uses different frequencies to deliver heat from shallow to deeper skin layers. It contracts and rebuilds dermal collagen to support firmness and fine lines.

Common concerns

• Loss of firmness
• Fine lines
• Facial contour
• Skin texture

Treatment areas: full face, eyes, jawline, neck.

Key facts

• Device / product: XERF monopolar radiofrequency
• Treatment time: about 30–60 minutes
• Anaesthesia: numbing cream if needed
• Downtime: minimal (temporary redness)
• When results show: immediate tightening, with gradual improvement over weeks to months
• Repeat interval: reassessed every few months to a year depending on skin

Learn more

See the XERF (Serf) procedure steps, recovery and side effects, and how it compares in XERF (Serf) vs Thermage FLX.

Medical notice: every procedure can cause side effects such as swelling, bruising, redness, pain, inflammation or pigmentation, and results and their duration vary between individuals. Suitability and method are decided only after a consultation with the doctor. This page is general information, not a diagnosis. Fees follow the clinic's official non-covered fee schedule.

Frequently Asked Questions

Does XERF hurt?

You will feel warmth, managed with cooling and energy adjustment; comfort varies.

Can XERF be combined with Ultherapy?

Yes. Ultrasound works deeper and radiofrequency works in the dermis, so they are often planned together.

When can I wear makeup after XERF?

Usually once the skin has settled after treatment.

Related Guides

• All Lifting treatments
• XERF (Serf): Procedure & Time
• XERF (Serf): Recovery & Aftercare
• XERF (Serf): Who It's For
• XERF (Serf): FAQ
• XERF (Serf): Cost Factors
• XERF (Serf): vs Thermage FLX
• XERF (Serf): In Seomyeon, Busan
• InMode guide
• Titanium Lifting guide
• Thermage FLX guide
• Medical reviewer: Dr. Lee Da-in
• Location, hours & parking