ONDA Body delivers 2.45 GHz microwave heat to subcutaneous fat and connective tissue while cooling the skin's surface. This noninvasive treatment reduces stubborn fat, smooths cellulite and firms loose skin, with no downtime.
I recommend it for patients who still have stubborn fat, uneven cellulite and loose skin after weight loss, despite a healthy diet and exercise.
Dr. Soyoun Koo Korea's first ONDA LIFTING EXPERT MEMBERGradual changes over weeks to months
Avoid saunas and strenuous exercise for a short period
Less stubborn fat
Smoother cellulite
Firmer skin
ONDA Body is a microwave body contouring treatment that uses Coolwaves® technology from DEKA in Italy. Microwave energy heats subcutaneous fat and connective tissue. The body then naturally clears the heat-damaged fat cells, gradually reducing the fat layer.
The same heat acts on collagen and the fibrous septa around fat, improving cellulite and skin firmness. Deep and Shallow handpieces deliver energy at different depths, while contact cooling keeps the skin's surface from overheating.
Treats fat that is difficult to shift with diet and exercise. Microwave heat destroys fat cells, which the body then clears naturally.
Smooths the uneven surface of cellulite. Microwave heat releases the fibrous bands that pull on fat and remodels the connective tissue.
Loose skin becomes firmer as heat contracts collagen near the surface and stimulates new collagen production.
Tackles fat, cellulite and loose skin together for a visibly more defined silhouette. Handpieces that work at different depths treat three layers, depending on the area.
Reduces thicker fat deposits on the abdomen, thighs and buttocks. Microwaves lose very little energy in the upper skin layers, so heat reaches deeper subcutaneous fat.
Firms skin that has become loose after weight loss. The same heat that reduces fat also acts on collagen to support the skin as volume decreases.
Results depend on how treatment is planned and performed. We take time with every patient. A doctor handles your consultation and performs your treatment personally.
Dr. Soyoun Koo is Korea's first ONDA LIFTING EXPERT MEMBER, certified by El.En and DEKA for sharing her treatment expertise with other doctors. She has also demonstrated ONDA treatment live at a DEKA seminar for international physicians.
At the 2026 spring conference of the Aesthetic Surgery & Laser Society, Dr. Soyoun Koo presented on deep tissue lifting with microwave energy and combined treatment of cellulite and fat.
Your doctor selects the handpiece, energy settings and number of sessions based on fat thickness, cellulite severity and skin firmness.
Less fullness and firmer skin
I tried ONDA Body because the extra fat around my lower stomach and sides bothered me. My abdomen felt hot during treatment, but I could manage it, and I wasn't particularly uncomfortable afterward. Over time, the fullness looked a little reduced and my skin felt firmer than before. I was pleased with that.
My arms looked more defined
I'd lost weight, but I still wasn't happy with the shape of my upper arms, so I chose ONDA Body. During treatment, I felt warmth, and they kept checking that I was comfortable. Afterward, my arms looked more defined than I'd expected. I was happy with that and felt less self-conscious about the area when wearing a dress.
Less overhang above my waistband
I had ONDA on my abdomen and sides because they stood out above my pants. The treatment felt hot, but it was tolerable. Over the next few days, my shape gradually looked a little more defined. My weight didn't change much, but I liked having less overhang above my waistband.
My upper arms look more defined
Dieting hadn't reduced my upper arms as much as I'd hoped, so I tried ONDA Body. The doctor examined me at the consultation, and during treatment they asked whether the heat felt okay. The treatment was comfortable, and afterward my arms looked more defined than before. I felt happier with how my clothes looked.
Recognized for sharing extensive clinical experience and scientific knowledge of ONDA microwave treatment, and for contributing to the clinical education of doctors who use ONDA.
These three types of energy reach different tissue depths.
| Method | Energy | Treatment depth | Primary target |
|---|---|---|---|
| Radiofrequency (RF) | Electrical current in the MHz range | 3–5 mm | Dermal collagen |
| High-intensity focused ultrasound (HIFU) | Focused ultrasound | 4–6 mm | Individual focal points |
| ONDA Body microwaves | Microwave energy | 12–15 mm | Subcutaneous fat and connective tissue |
How do microwaves change body contours? An experienced ONDA doctor selects the depth and energy for each area. Treatment then works through four stages.
Microwaves reach subcutaneous fat without losing energy in the upper skin layers.
Continuous contact cooling protects the skin's surface from excessive heat.
Controlled heat places stress on fat cell membranes, causing the cells to die.
Macrophages clear the destroyed fat cells, gradually refining body contours. Remodeling of fibrous septa and collagen also helps smooth the skin.
A doctor with extensive ONDA experience, including teaching other physicians, selects each handpiece and energy setting according to fat thickness, cellulite severity and skin firmness.
The Deep handpiece delivers heat to subcutaneous fat in thicker areas such as the abdomen, flanks, thighs and buttocks.
The Shallow handpiece remodels superficial fat and fibrous septa in areas with uneven texture.
For loose skin, treatment at the shallowest depth tightens tissue and collagen close to the surface to improve firmness.
Layer thicknesses are simplified for illustration. Actual depths vary with the treatment area and skin thickness.
Our approach
Your doctor first marks the treatment areas, then chooses the handpiece, energy and number of sessions based on fat thickness and skin condition.
AbdomenFlanksThighsButtocksArmsCompare body treatments side by side. The right choice varies from person to person, so your doctor will help you decide at your consultation.
| Treatment | Results | Duration | Comfort | Recovery |
|---|---|---|---|---|
| ONDA Body | Gradual improvement | Lasts 6 months or more | Mild discomfort | No downtime |
| CoolSculpting | Gradual improvement | Lasts 6 months or more | Minimal | No downtime |
| EMSCULPT | Visible right away | Lasts around 6 months | Minimal | No downtime |
| EMSCULPT NEO | Visible right away | Lasts around 6 months | Minimal | No downtime |
| Hipfullen | Gradual improvement | Lasts 6 months or more | Mild discomfort | No downtime |
Energy delivered to the fat layer
The remaining 20% reaches the dermis
Reduction in abdominal circumference
One-month average in the Bonan study
Proportion with severe cellulite
3 months after 4 treatments, Nisticò research group
Bennardo, Nisticò et al., J Clin Med 2022 ↗From actors preparing for filming to patients planning a wedding or presentation, many people visit us ahead of an important date. Your doctor plans the timing and combination of treatments around your body shape and schedule.
If your event is tomorrow
This treatment has no downtime and can be performed close to an event, but results develop gradually. If your event is tomorrow, your doctor may combine it with a treatment that gives more immediate results.
If your event is a month away
We work backward from your event date to plan a course of treatment around ONDA Body. Our broad range of devices lets us choose a combination that suits your body.
Changes begin in the fat cells exposed to heat.
Macrophages gather and begin clearing the destroyed fat cells.
The body actively clears debris from the destroyed cells.
Body contours gradually change as the immune system carries out its natural clearance process.
Your doctor handles both your consultation and treatment. A patient coordinator can help with pricing.
Your doctor discusses the areas that concern you and the body shape you hope to achieve.
Your doctor maps out the treatment areas based on fat thickness and skin condition.
Your doctor sets the energy for each area and delivers heat while the skin's surface is cooled.
After soothing care for the treated areas, you can go home.
Conference lectures and seminars with doctors from around the world.
The same 2.45 GHz ONDA technology firms and contours the face and treats fat and cellulite on the body. Both are part of our ONDA program, which we have also shared with doctors from abroad.
Explore ONDA Lifting →CoolSculpting reduces fat cells through cooling; ONDA Body uses heat to address fat, cellulite and skin firmness together. Your doctor selects each treatment according to the area and your concerns.
Explore CoolSculpting →Our doctors explain fat, cellulite and loose skin in clear, practical terms.
Look for an ONDA Body clinic that uses the full range of 12 mm, 7 mm and 3 mm handpieces, with a doctor selecting the depth and energy for each area.
The doctors at Dong-An Joongsim Clinic
Cellulite forms when fat pushes toward the surface while fibrous bands pull the skin downward. Losing weight alone often does little to address that uneven structure.
The doctors at Dong-An Joongsim Clinic
Pinchable subcutaneous fat on the abdomen can be reduced without surgery using cooling, microwaves or electromagnetic treatments.
The doctors at Dong-An Joongsim ClinicResults depend on how treatment is planned and performed. Check whether a doctor handles both consultation and treatment, whether genuine devices and consumables are used, and whether treatments can be combined for your body shape and concerns. Dong-An Joongsim Clinic in Apgujeong, Gangnam, Seoul, Korea is home to Korea's first ONDA LIFTING EXPERT MEMBER. We take time with every patient, and a doctor leads your consultation and performs your treatment personally.
CoolSculpting crystallizes fat cells through cooling to reduce them. ONDA Body uses 2.45 GHz microwave heat to reduce fat cells while also addressing cellulite and skin firmness.
Yes. The treatment addresses localized fat, cellulite and skin firmness together. The Deep 12 mm handpiece targets localized fat on the abdomen, flanks, thighs and buttocks. The Shallow 7 mm handpiece targets connective tissue and fibrous septa involved in cellulite, while the Shallow 3 mm handpiece targets collagen near the skin's surface. This helps smooth uneven texture and tighten loose skin.
Changes begin in the heat-treated fat cells within 24 hours. Within 72 hours, macrophages begin clearing the destroyed cells, and debris is cleared over about a week. Visible changes develop gradually over weeks to months as the body's natural processes continue.
Yes. Both use DEKA's 2.45 GHz Coolwaves® microwave technology from Italy. The body version uses Deep and Shallow handpieces designed for the body to deliver energy to subcutaneous fat and connective tissue. It can therefore reduce fat while tightening skin that has become loose after weight loss.
This depends on fat thickness and your concerns. Research has used 4 sessions at 30-day intervals, and the same area should be treated at least 15 days apart. Your doctor will recommend a course of treatment at your consultation.
Yes, you can return to your usual routine right away. For a while afterward, avoid rubbing the treated area firmly, using saunas or doing strenuous exercise.
No. This treatment addresses localized fat, cellulite, firmness and body contours rather than the number on the scale. It does not replace weight management through diet and exercise. Your doctor will distinguish fat thickness from skin laxity and discuss realistic treatment goals.
| Manufacturer | DEKA M.E.L.A.Calenzano, Italy · El.En Group |
|---|---|
| Energy | 2.45 GHz microwavesCoolwaves® technology |
| Handpieces | Deep 12 mm · Shallow 7 mm · 3 mmFat, cellulite and skin tightening |
| Target temperature | 45–55°C |
| Cooling | Integrated contact cooling at 5°C |
| Certifications | FDA · CE |
We take time with every patient. Your doctor leads the consultation and performs the treatment, with a plan based on your body shape.
