ONDA vs Shurink Universe for Double Chin Treatment
A double chin is one of the most common reasons visitors book a non-surgical contouring treatment in Busan. Two devices dominate the conversation: ONDA, which uses microwaves, and Shurink Universe, which uses focused ultrasound. Both can improve the area under the chin, but they target different causes, so the best choice depends on what your double chin is actually made of.
Quick answer: If your double chin is mainly soft fat, ONDA is usually the better choice, because its microwave energy concentrates in the fat layer while also firming the skin. If it is mainly loose tissue and a soft jaw angle, Shurink Universe is better, because its focused ultrasound tightens deeper tissue for lift. Many double chins involve both, which is why the two are often combined in one session. For a small, stubborn pocket of fat, a fat-dissolving contour injection is another option.
What causes a double chin?
- Fat under the chin (submental fat): a soft roll you can pinch. Common at any age and not always linked to body weight.
- Loose skin and tissue: with age, the tissue under the jaw loosens and the neck-jaw angle softens.
- Bone structure and posture: a smaller chin or forward head posture can make the area look fuller. Devices cannot change bone.
- A combination: the most common situation from the mid-30s onwards.
A doctor will usually pinch the area, look at your profile and ask you to tilt your head to judge how much is fat and how much is laxity.
How ONDA treats a double chin
ONDA, made by DEKA in Italy, sends microwave energy through the cooled skin surface into the fat layer. The heat can reduce fat cells over the following weeks, while warming connective tissue stimulates collagen so the skin firms as well. Under the chin, a relatively small amount of energy is needed compared with the full lower face. Changes develop over about 2–8 weeks, and a monthly series often gives more visible results than a single session.
How Shurink Universe treats a double chin
Shurink Universe, by Classys in Korea, is a HIFU device. It focuses ultrasound into tiny heated points at set depths, contracting deeper tissue and triggering collagen renewal. Under the chin and along the jaw, this can tighten looseness and sharpen the angle between neck and jaw. It is quick, usually affordable and easy to repeat for maintenance. It is not mainly a fat-reduction device, and it is used cautiously where skin is very thin with little fat.
Which should you choose?
ONDA is usually better if
- You can pinch a clear roll of soft fat under your chin.
- Your skin is still fairly firm.
- You also want the lower face or jawline slimmed.
Shurink Universe is usually better if
- The area looks loose rather than full.
- Your jaw angle has softened with age.
- You want low-cost, repeatable upkeep.
Combine them if
- You have both fat and looseness, which is very common.
- You want the outline improved from more than one direction in a single visit.
Consider other options if
A small, stubborn pocket of fat may respond well to a contour (fat-dissolving) injection. A wide lower face from a strong chewing muscle responds better to jaw Botox. Energy devices are avoided during pregnancy and with a pacemaker, implanted electronic device or metal implants in the area.
Cost in Busan
Example prices at a clinic in Seomyeon:
- Shurink Universe 100 shots, first-visit single-session trial : from KRW 25,000
- ONDA 60,000 J : from KRW 390,000
- ONDA 60,000 J + Shurink Universe 300 shots : from KRW 429,000
- Jaw Botox + power contouring injection 18cc : from KRW 99,000
Prices checked October 2026. They exclude 10% VAT, and prices change frequently, so confirm today's price when booking. Remember to compare the full plan: fat-dissolving injections usually need 3–5 sessions, and ONDA often works best as a monthly series.
What happens during treatment
- Consultation: the doctor judges fat thickness, skin laxity and jaw shape, then chooses the device, energy or shots.
- Numbing: numbing cream for about 30 minutes.
- Treatment: ONDA feels like a gliding deep warmth with brief hot spots; Shurink feels like quick, prickly pulses, especially near the jawbone. Each takes about 30–60 minutes depending on the area.
- After: mild warmth, redness or tenderness that settles quickly.
Results and timeline
- ONDA: fat reduction and firming develop over weeks 2–8; usually a softening of fullness rather than a dramatic change.
- Shurink Universe: tightening develops over weeks to months as collagen renews.
- Duration: both typically last about 6–12 months. Keeping a stable weight helps maintain fat reduction.
Side effects and aftercare
Both are generally well tolerated. Expect warmth, redness and mild swelling, which can be more noticeable under the chin, plus tenderness for a day or two. ONDA can rarely cause burns, blisters or small firm areas in the fat. Shurink can rarely cause temporary numbness, small welts or nerve irritation.
- Avoid saunas and jjimjilbang, hot baths, alcohol and hard exercise on the day.
- Use sunscreen for 1–2 weeks and do not rub the area.
- Drinking water helps with puffiness. Flying is generally fine.
Frequently asked questions
Will one session fix my double chin?
Some people notice a difference after one session, but changes are gradual. ONDA often works best as a series about a month apart; Shurink is typically repeated for maintenance.
Can a double chin come back?
Results fade with ageing and weight change. Maintaining a stable weight and occasional maintenance sessions help keep the outline.
Is a fat-dissolving injection better?
For a small, defined pocket of fat, injections can be precise. For broader fullness with some laxity, a device such as ONDA, with or without Shurink, is often more suitable.
Want a sharper jaw-to-neck line?
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This article is for general information and does not replace a medical consultation. Suitability, results, recovery and side effects vary from person to person.
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