The body sculpting device that has been most frequently mentioned in South Korea over the past two years and is found in almost every clinic—neither an HIFU nor Thermage—is Onda. What exactly is it? How does it differ from common anti-aging devices? How much does a treatment cost? Who is suitable for it? This article will clarify all these questions, so make sure to do your homework before going.
30-Second Overview: Equipme
nt – The ONDA device from Italian brand DEKA, powered by Coolwaves technology (2.45GHz microwaves). Key feature – non-invasive treatment that simultaneously melts fat and tightens
skin, ideal for addressing localized fat deposits, cellulite, and skin laxity. Advantages – no surgery required, minimal
downtime, works regardless of skin tone, and suits the common “low fat + loose skin” body type among Asians. Price – in South Korea, it costs
around ₩150,000–300,000 per session per area, charged based on kJ usage; typically 3–6 sessions are needed. Suitable for – abdomen/Flanks/Thighs cellul
ite/arm softness; not suitable for – those looking for significant weight loss in one session, pregnant women, or those with severe metabolic disorders.
What exactly is ONDA in South Korea? Explained in one sentence.
ONDA is a non-invasive body sculpting and tightening device launched by the Italian medical equipment manufacturer DEKA. Its core technology is called Coolwaves—a type of microwave energy at 2.45GHz. What sets it apart from the HIFU (focused ultrasound) and Thermage (radiofrequency waves) is that while the latter two are primarily designed for tightening and lifting skin, ONDA targets the fat layer, aiming to dissolve localized fat while simultaneously tightening the skin. In short, it’s one of the few devices that combines fat reduction with skin tightening in a single unit.
Why Has Onda Become So Popular in South Korea?
ONDA became a sensation in South Korea, from Gangnam all the way to smaller cities, not thanks to clever marketing tactics, but because it truly filled a gap that existed—many Asians aren’t troubled by excess fat that needs to be removed; instead, they suffer from a thin layer of fat combined with loose skin and noticeable cellulite. For such body types, liposuction can be too aggressive, while radiofrequency treatments only tighten the skin without melting fat. ONDA strikes the perfect balance between these two approaches.
- Lipolysis + tightening in one session: Unlike cryolipolysis, which only melts fat without tightening, and radiofrequency, which only tightens without melting fat, ONDA handles both tasks at once.
- Non-invasive with almost no downtime: You can return to work right after the procedure, unlike liposuction where you need time off to recover.
- Microwaves are not sensitive to skin tone: people with darker skin tones are also relatively safe, making it ideal for Asians.
- For targeted contouring: It offers greater precision for those areas where people are particularly concerned about appearance, such as the lower belly, Flanks, and Thighs with cellulite, compared to full-body surgeries.
THE PRINCIPLE OF ONDA: How do microwaves achieve “fat melting while protecting the skin”?
ONDA’s microwaves selectively heat the subcutaneous fat layer (about 1–2 cm deep), causing the fat cells to be gradually metabolized once heated. Meanwhile, the device comes equipped with a cooling system that protects the epidermis from burns. In short: it heats the fat deep down while cooling the surface to provide protection, which is why there’s usually no redness or swelling on the outside as the treatment takes effect inside. This is also why it offers “almost no downtime” — unlike liposuction, which requires wearing a Compression Garment for weeks, ONDA is much more convenient for people who need to go to work.
Primary indications: Which areas are most suitable for treatment
- Abdomen: Postpartum bloating and bloating from sitting for long periods are the most commonly mentioned issues.
- Flanks / Love handles: The stubborn fat around the waist that just won’t go away no matter how much you exercise.
- Thighs cellulite and sagging: ONDA’s ability to reduce cellulite patterns is one of its key differentiating features.
- “Butterfly sleeves” on the arms, a full-looking back: excellent precision results for small areas.
It isn’t designed primarily for shaping facial contours—facial lifting is more the domain of HIFU and Thermage. If you want to understand how Thermage is applied transparently at clinics in South Korea, take a look at that article about Gangnam ADO Dermatology turning “application diagrams” into standard procedures; it provides a clearer comparison.
ONDA vs HIFU vs Thermage vs Cryolipolysis: A Side-by-Side Comparison
| Project | ONDA (Microwaves) | HIFU (Focused Ultrasound) | Thermage (RF) | Frozen fat dissolution |
|---|---|---|---|---|
| Primary Goal | Fat Dissolution + Tightening | Tightening and Lifting | Tightening and Lifting | Pure Fat Dissolution |
| Action Layer | subcutaneous fat | SMAS/fascia | dermis | fat |
| Downtime | Almost none | Almost none | Almost none | Brief numbness |
| Suitable areas | Body parts | Face/Body | Face/Body | Fat that can be pinched and lifted |
| Price perception | ₩150,000–300,000 per session | High | High | China |
Conclusion: If you only want to tighten your face or body contours, Thermage/HIFU is a better choice for this purpose. But if you have localized fat accumulation, sagging skin, and cellulite, ONDA offers better value for money and more targeted results.
How much does it cost to get an ONDA treatment in South Korea?
In South Korea, services like Onda for body treatments are typically charged either by kJ (the unit of energy) or by treatment area. The cost per area per session usually ranges from 150,000 to 300,000 won, with most treatment courses consisting of 3–6 sessions spaced 2–4 weeks apart. Taking Gangnam’s AYUN Dermatology as an example, its Onda pricing is broken down by kJ, with the difference between larger and smaller package deals being around 3,783 won per kJ. It’s wise to calculate in advance whether going with a larger package really saves you money, so as not to be influenced by sales tactics. For more information on price benchmarks for various body treatments, the article “MaisondeM’s Fully Transparent Pricing” also provides reference figures for HIFU and fat dissolution treatments.
💡 Prices vary depending on clinic promotions and exchange rate fluctuations. The range listed above is based on publicly available information for reference only; the actual price will be determined at the clinic. More and more clinics are offering identical prices to those in South Korea, so it’s worth considering a trip to Seoul for treatments—your cost might not even be higher than getting them domestically.
Who is suitable for South Korea’s Onda treatment? Who should wait first?
Suitable for: those with localized fat accumulation + skin laxity who want non-surgical improvement and have a moderate budget; as well as individuals concerned about the recovery period after liposuction.
Take it easy: If you’re hoping for significant weight loss (it’s about shaping the body, not just losing weight), are pregnant or breastfeeding, have a pacemaker, suffer from severe metabolic or lymphatic disorders, or have open wounds in the area where treatment will be performed. Results vary from person to person with any cosmetic procedure—these aren’t absolute contraindications, but it’s essential to get a face-to-face evaluation from a doctor before proceeding.
Number of treatment sessions and postoperative precautions
- Most people notice significant changes after 3–6 sessions, with each session lasting about 20–40 minutes.
- Drink plenty of water after the procedure and engage in gentle exercise to boost metabolism; mild redness or swelling is a normal reaction.
- Results are not permanent: although the number of fat cells decreases, weight can regain if habits aren’t changed; maintenance relies on diet and exercise.
Risks and side effects – to be honest
Common and short-lived: redness, mild swelling, and very few bruises, with most symptoms disappearing within a few days. Severe complications are rare but not entirely absent—choosing a clinic equipped with originally certified devices and staffed by experienced professionals is crucial. For example, Gangnam RE:BERRY is one of the DEKA-certified Onda Premium clinics, ensuring greater transparency regarding device origins and operation. Be sure to verify the model of the equipment and the qualifications of the practitioners before the procedure.
How to Choose a Clinic for Onda Treatment in South Korea
- Check the machine: Make sure it’s an original ONDA unit (avoid counterfeit microwave energy devices).
- Check the procedure: Whether it’s performed by a doctor or under their constant supervision throughout.
- Check the pricing: Is it transparent, listed per kJ per treatment area, rather than a vague “all-inclusive package”?
- Check reviews: We’ve compiled a list of 12 top Dermatology clinics in South Korea that are great for getting ONDA treatments, ranging from those in Gangnam to those in Busan. Before you go, pick out 2–3 clinics to compare.
Frequently Asked Questions FAQ
- Does ONDA hurt? Most people feel a warm sensation along with a mild sucking feeling, and anesthesia is usually not required.
- How long does it take to see results? Some people feel firmer right away, but noticeable changes in fat metabolism take 4–12 weeks.
- Will it rebound? Even after fat cells decrease, they may expand back due to weight gain again—maintenance depends on lifestyle habits.
- Can it be done together with Thermage? It’s possible to combine them in layers, but the doctor must determine the sequence and intervals.
- Can men get it done? Yes, the male abdomen and chest sides are also common areas.
Related Reads
· Tired from researching? 12 top Dermatology clinics in South Korea for ONDA treatment · Gangnam AYUN De
rmatology price list 2026 (with itemized pricing for body ONDA treatments) · Gangnam RE:BERRY: The “all-black art gall
ery” clinic rated over 360+ by foreigners · Does the clinic provide you with a “treatment diagram” after Thermage treatment? Gangna
m ADO Dermatology · Full disclosure of prices at MaisondeM Dermatology in South Korea (reference rate
s for HIFU and fat dissolution treatments) · When going to South Korea for medical aesth
etics, don’t just focus on prices: Secret Dermatology’s “three strict rules” · Only staying
in Seoul for 3 days? Which day should you schedule your appointment at Gangnam AYUN?
Disclaimer: This article is intended as educational information and a compilation of public data related to the ONDA project, and it does not constitute medical advice. Prices may vary depending on the clinic and promotional offers, and the final amount will be based on the quote given on site. Before undergoing the procedure, please have a qualified physician conduct a personal assessment to confirm the device model and the qualifications of the operator.