ONDA Lifting for Double Chin: How Many Sessions Are Needed?

A double chin can appear even in people who are slim, because genetics, posture, jaw shape and skin laxity all play a part. Many visitors to Seoul ask whether ONDA lifting can reduce it without injections or surgery, and how many sessions it will take to see a difference.
This guide explains why a double chin forms, how ONDA targets the area under the chin, what the treatment process looks like, how many sessions are typically recommended and what results you can expect.
1. Why a double chin forms
Fat under the chin, known as submental fat, is one of the most stubborn areas to change through diet and exercise. Some people naturally carry more fat in this area because of genetics. With age, loosening skin and changes in the jaw angle can make it look fuller still. Posture, a short chin and the angle of the neck also influence how prominent a double chin appears in photos.
2. How ONDA targets submental fat
ONDA uses Coolwaves microwave energy that passes through the skin and selectively heats the fat layer beneath it. The treated fat cells are gradually reduced and cleared by the body, while the connective tissue tightens. Cooling protects the skin during each pass, which is why there is no wound and no downtime.
Because it works on both fat and connective tissue, ONDA can slim the area and give a cleaner angle between the chin and neck.
3. The treatment process
Consultation: the doctor assesses whether fullness comes mainly from fat, loose skin, a short chin or a combination, often with AI 3D skin analysis.
Marking: the treatment area under the chin and along the jaw is mapped.
Treatment: the handpiece is moved across the area in passes, with cooling throughout. Sessions are usually short.
After care: you can return to normal activities straight away.
4. How many sessions are needed?
The number of sessions depends on how much fat is present and how much definition you want. Some people notice a change after a single session, especially when fullness is mild. For a more noticeable reduction, a short course of sessions is often recommended, spaced to allow the body time to clear treated fat between treatments.
Your doctor will suggest a plan that fits your travel dates. If you can only visit once, a single session can still provide improvement, and further sessions can be planned for a later trip.
5. Factors that affect the number of sessions
Amount of fat: more fullness usually needs more sessions.
Skin elasticity: firmer skin shows the change more clearly.
Weight stability: stable weight helps maintain results.
Jaw and chin structure: a short or recessed chin can make fullness look larger than it is.
6. Results timeline
Results develop gradually over several weeks as the body clears treated fat. Most patients see a slimmer area under the chin and a cleaner jawline. Because fat cells are reduced rather than simply shrunk, results can be long-lasting if your weight stays stable.
7. When ONDA alone is not enough
If loose skin is a major part of the problem, reducing fat may leave some laxity behind. In that case, combining ONDA with Ultherapy or a thread lift tightens and lifts the skin as well. If the chin is recessed, a small amount of chin filler can improve the profile. If the jaw muscle is large, jaw Botox may also help overall lower-face shape.
8. Comfort and side effects
Most people feel warmth during each pass, balanced by cooling. Afterwards, mild redness, swelling or tenderness under the chin can last from a few hours to a couple of days. Serious side effects are uncommon when the treatment is performed by an experienced doctor using appropriate settings.
9. Cost in Seoul
ONDA lifting in Seoul typically costs around KRW 500,000 to KRW 1,200,000 depending on the area and number of sessions. Treating only the submental area is usually at the lower end of this range. Check our event price list for current offers.
10. Maintaining your result
Keep your weight stable, stay active and maintain good posture. If skin laxity develops with age, a lifting treatment can help maintain the contour. Many patients combine occasional ONDA sessions with yearly lifting.
Conclusion
ONDA can reduce stubborn fat under the chin and define the jawline with no downtime. Some people see improvement after one session, while a short course gives a stronger result for more fullness. If loose skin or chin shape is also part of the picture, a combination plan often works best. Send a side-profile photo to our English-speaking team on WhatsApp, or read more on our ONDA lifting in Gangnam page.
This article is for general information and does not replace medical advice. Results vary by individual, and a doctor's consultation is required before any treatment.






















