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Double Chin in Korea: Injections, ONDA, InMode FX or Ultherapy? (2026)
By Dr. IM JUNHYUNG · Updated
- Pinch test: a soft, thick fold you can hold is mostly fat.
- Fat-dissolving injections and ONDA reduce fat over one to three sessions.
- Ultherapy or Sofwave tightens loose skin under the chin.
- Jaw Botox slims the masseter — it does not treat a double chin.
- Fat
- Injections · ONDA — or InMode FX
- Loose skin
- Ultherapy — or Sofwave
- Short chin
- Structure — devices help less
- Sessions
- 1–3 — by cause
Find the cause first
| What you notice | Likely cause | Usually helps |
|---|---|---|
| A soft fold you can pinch | Fat | Injections, ONDA, InMode FX |
| Skin that looks loose or crepey | Laxity | Ultherapy, Sofwave |
| Little angle between chin and neck even when slim | Short chin, jaw structure | Devices help less |
| Worse when looking down at a phone | Posture plus one of the above | Treat the cause |
Most people have two at once — some fat and some laxity — so a plan often combines one treatment for each.
Fat-dissolving injections
Injections into the fat under the chin break down fat cells, which the body clears over the following weeks. Expect swelling and tenderness for two to three days, sometimes longer. One session may be enough for a small pocket; more fat needs two or three, about a month apart. The amount goes on your record.
ONDA and InMode FX
ONDA uses microwave energy aimed at the fat layer and the fibrous septa, with little discomfort and no downtime. InMode FX combines radiofrequency with pulses designed for small fat areas and contour. Both usually need one to three sessions and suit people who want to avoid swelling.
Ultherapy and Sofwave for loose skin
When the skin under the chin has loosened, reducing fat alone can leave it looking slack. Ultherapy reaches the SMAS and tightens from deeper; Sofwave works in the dermis with less downtime. Our V-Line Lift combines Ultherapy, a fat-dissolving injection, jaw Botox and ONDA for a jawline with all three issues.
What to expect
Change builds over four to eight weeks for fat reduction and two to three months for tightening. Weight changes affect results either way. Swelling from injections settles in days; devices usually have no downtime. We wait in pregnancy and with infection or recent filler in the area.
FAQ
What is the most effective double chin treatment?
It depends on the cause. Fat responds to injections, ONDA or InMode FX; loose skin to Ultherapy or Sofwave. Many people need one of each.
How many fat-dissolving injection sessions?
One for a small pocket, two or three for more fat, about a month apart.
Is there downtime?
Injections: swelling and tenderness for two to three days. ONDA and InMode FX: usually none.
Does jaw Botox help a double chin?
No. Jaw Botox slims the chewing muscle at the side of the jaw; a double chin is under the chin.
General information, not medical advice. Your plan is set at an in-person consultation; results vary by individual.
Representative Director of Taut Clinic, Gangnam. Full member of the Korean Aesthetic Surgery & Laser Society (ASLS), the Korean Association for Laser Dermatology and Trichology (KALDAT) and the Korean Society of Filler Medicine. Commendation from the Minister of Health and Welfare.
Treatments in this article
See how each treatment mentioned here is done at Taut Clinic, with options and prices.
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