Onda Lifting in Korea: Microwave Technology for Facial Fat and Laxity

Onda is a microwave-based device that uses 2.45 GHz "Coolwaves" energy to heat fat and connective tissue beneath the skin, which can help reduce small areas of facial fat and tighten mild laxity. On the face, it is often used for the lower cheeks, jowls and double chin, typically with little downtime and gradual results over several weeks.
Onda is made by DEKA, an Italian company. It was first known as a body contouring device, and its face application has become popular in Gangnam clinics for people who want a slimmer contour as well as tighter skin.
How Onda Works
Most lifting devices use ultrasound or radiofrequency. Onda uses microwaves, which are designed to pass through the skin's surface with cooling and deposit heat mainly in the fat layer and the fibrous septa (connective tissue strands) beneath it.
- Fat targeting: heat can damage fat cells, which the body then clears over the following weeks.
- Tissue tightening: heating connective tissue and collagen can improve mild laxity.
- Surface cooling: the handpiece cools the skin to protect the surface and improve comfort.
- Handpieces: different handpieces are designed for deeper fat, more superficial tightening and small areas.
Who It Suits
- Small pockets of fat along the jawline, jowls or lower cheeks
- Mild double chin from fat and soft tissue
- Mild laxity alongside fullness
- People wanting a slimmer contour without injections or surgery
Onda is less suitable for people with very slim faces, where reducing fat could make the face look hollow or older, or for heavy sagging, where surgery may be more effective.
Onda Compared With Other Contouring Options
| Option | Main action | Typical downtime | Best for |
|---|---|---|---|
| Onda (microwave) | Heats fat and connective tissue | Minimal; possible swelling | Mild fat plus laxity |
| HIFU (Shurink, Linear Z) | Tightens deeper layers | Minimal | Laxity and contour |
| InMode FX | RF with vacuum and pulses for fat | Mild swelling | Small fat pockets |
| Fat-dissolving injections | Breaks down fat with injections | Swelling for days | Localised fat |
What Happens During Treatment
- Consultation: the doctor assesses fat distribution, laxity and skin, and decides whether reducing fat is appropriate for your face.
- Preparation: the area is cleansed and marked. Numbing is often not required, though it depends on the clinic.
- Treatment: the handpiece is moved over the area. Most people feel warmth with cooling.
- Finishing: the area is soothed. Facial sessions are usually fairly short.
Results and How Long They Last
Some tightening may be felt soon after treatment, but fat reduction develops gradually over several weeks as the body clears treated fat cells. Some people need more than one session. Fat cells that are cleared do not usually return, although remaining fat cells can still grow with weight gain. Results vary considerably from person to person.
Recovery and Side Effects
Most people return to normal activities right away. Possible effects include:
- Redness and warmth for a few hours
- Swelling or tenderness for a few days
- Temporary numbness or firmness under the skin
- Rarely, burns or uneven contour
Who should avoid it
Onda may not be suitable during pregnancy, for people with pacemakers or implanted electronic devices, metal implants in the area, active skin infection, or certain medical conditions. People with slim faces should discuss carefully whether fat reduction is right for them. A licensed physician should assess you first.
Facial Fat: Why Less Is Not Always Better
Some facial fat is part of a youthful look. Fat in the mid-cheeks and temples supports the skin and keeps the face from looking drawn. Reducing fat in the wrong place, or too much of it, can make a face look tired or older over time, especially as natural fat loss continues with age. For this reason, careful doctors usually treat only clearly defined pockets, such as under the chin or along the jowls, and may suggest lifting rather than fat reduction for people with slimmer faces.
If you are unsure, ask the doctor to show you on a mirror or photo exactly which areas would be treated and why.
How to Choose
- Ask the doctor to explain whether your concern is mainly fat, laxity or both.
- Be cautious about fat reduction if you already have a slim or hollow face.
- Ask how many sessions are realistic and how results will be checked.
- Consider pairing with HIFU or RF if laxity is also a concern.
- Confirm the device is genuine Onda.
Tips for Visitors to Korea
- Onda fits into a short trip, though swelling may last a few days in some people.
- Avoid saunas, hot baths and alcohol for a day or two.
- Published prices in Gangnam start from around ₩130,000 (≈ $100) for Onda Face, with prices depending on areas and session size. Prices vary by clinic and change over time.
- Take front and profile photos before treatment to compare changes later.
Frequently Asked Questions
Is Onda a lifting treatment or a fat reduction treatment?
It can do a little of both. On the face, it is mainly used for small areas of fat with mild laxity. For lifting alone, HIFU or RF devices are more commonly used.
Does Onda hurt?
Most people describe it as warm and tolerable, with cooling on the skin. Sensitivity varies by area and person.
How many sessions do I need?
Some people see a change after one session, while others benefit from two or more. The doctor will advise based on your face.
Can Onda make my face look older?
If too much fat is removed from a face that is already slim, it can look hollow. This is why a careful assessment before treatment is important.
Can Onda be used on the body as well?
Yes. Onda was originally developed for the body and is commonly used on areas such as the abdomen, flanks and thighs, with different handpieces and pricing from facial treatment.
This article is for general information only and does not replace a consultation with a licensed physician. Results vary from person to person.


























