What We Treat

OndaPro

Dr Ong Jin Khang · MMC 45245 · LCP holder · The Retreat Clinic, Setia Alam

OndaPro (also written Onda Pro) uses microwave energy at a frequency that selectively targets fat cells beneath the skin, while stimulating collagen in the layers above, and the body clears the disrupted fat over the weeks that follow. It is a contouring tool for a specific, stubborn area, on the body or under the chin. It is not a weight loss programme.

Contouring. Not weight loss.

At a glance

OndaPro, in six answers.

Painted OndaPro handpieces resting on a tray beside a folded towel and a sprig of leaves

What it is

Microwave energy that targets fat cells beneath the skin, while stimulating collagen in the layers above.

Who it suits

A defined, stubborn pocket, in someone near a healthy weight.

Not a weight loss programme.

Sessions

Three to five

A course of sessions about a month apart.

Downtime

None

No downtime afterwards.

Performed by

Qualified therapists

Certified in OndaPro, after Dr Ong's own examination.

Timeline

The sessionThirty to ninety minutes depending on the area, at the clinic in Setia Alam
Four to eight weeksThe result typically builds as the body clears the disrupted fat
On a stable weightCleared cells do not return, but the rest can enlarge if weight rises

How it works

Microwave, concentrated in the fat.

The same session warms the dermis above more gently, which stimulates new collagen and gives a degree of tightening alongside the contouring.

  1. 01

    Through the skin, into the fat

    Microwave energy passes through the surface of the skin with relatively little absorption there and concentrates in the fat layer underneath, while cooling protects the skin above.

  2. 02

    Fat cells heated past recovery

    In the fat layer, the energy raises the temperature of fat cells past the point at which they can recover. The cells break down.

  3. 03

    Cleared over the weeks that follow

    The lymphatic system picks up their contents, which are processed through the liver and cleared. The fat does not migrate, and it does not reappear somewhere else.

Who it suits

Who it is for, and who it is not.

Dr Ong examines the fat layer, the skin above it and overall body composition, and decides whether the device is the right tool at all.

Where it fits

  • A defined, stubborn pocket: a lower belly, flanks, inner thighs, upper arms or the fullness under a chin.
  • Someone already near a healthy weight, whose weight has been stable.
  • Someone who can point at the specific area that bothers them.
  • Skin that has softened with weight change, where collagen stimulation helps the surface follow the new contour.

Where it does not

  • Anyone whose real goal is to be smaller overall: that belongs to medical weight management.
  • Stubborn fat that turns out to be mostly skin laxity: that needs a tightening or surgical conversation.
  • Anyone chasing a visible change by a fixed date, because the biology takes weeks.
  • Pregnancy: treatment is deferred.

Compare

Contouring, weight and tightening.

A fat pocket, overall weight and loose skin are three different questions. Which one is yours is an assessment question, not a preference.

Compared
OndaProThis page
Medical weight managementRead about weight management
Works on
A localised pocket of fat
The skin itself, at depth
Overall weight that is affecting health
How
Microwave energy that concentrates in the fat layer, with cooling for the skin above
Dual-frequency radiofrequency, with cooling at the surface
Assessment, then prescription medicine where it fits, with monitoring for as long as treatment continues
Suits
Someone near a healthy weight, with a stable weight and one specific area
Early to moderate laxity of the face, brow, lower face, under the chin and neck
Patients whose weight is affecting their health
The change
Builds over four to eight weeks and continues through the months that follow
Builds over weeks to months as new collagen forms
Varies from person to person, with no timeline promised before assessment
Will not
Produce weight loss
Act as a facelift, or add volume
Work as a quick cosmetic slimming service

OndaPro

This page
Works on
A localised pocket of fat
How
Microwave energy that concentrates in the fat layer, with cooling for the skin above
Suits
Someone near a healthy weight, with a stable weight and one specific area
The change
Builds over four to eight weeks and continues through the months that follow
Will not
Produce weight loss

XERF

Read about XERF
Works on
The skin itself, at depth
How
Dual-frequency radiofrequency, with cooling at the surface
Suits
Early to moderate laxity of the face, brow, lower face, under the chin and neck
The change
Builds over weeks to months as new collagen forms
Will not
Act as a facelift, or add volume

Medical weight management

Read about weight management
Works on
Overall weight that is affecting health
How
Assessment, then prescription medicine where it fits, with monitoring for as long as treatment continues
Suits
Patients whose weight is affecting their health
The change
Varies from person to person, with no timeline promised before assessment
Will not
Work as a quick cosmetic slimming service

The full read

OndaPro, in full.

Who performs OndaPro here

At The Retreat Clinic, Dr Ong Jin Khang (MMC 45245, LCP for aesthetic practice from the Ministry of Health) has been the only doctor since the clinic opened in Setia Alam in April 2013. Every OndaPro plan at the clinic starts with his own examination of the fat layer, the skin above it and overall body composition, and he decides whether the device is the right tool at all. The sessions are carried out by qualified therapists certified in OndaPro, using whichever of the machine's three handpieces suits the face or body area being treated. The clinic offered fat freezing before it moved to OndaPro. The clinic has offered OndaPro since 2025. The clinic was the first in Setia Alam and Shah Alam to offer OndaPro, in 2025. Before OndaPro it was a certified CoolSculpting centre from 2017, with the first DualSculpting CoolSculpting system in Shah Alam in 2018, and in 2019 Dr Ong spoke at the CoolSculpting launch in Manila. His registration and LCP can be checked on the public registers: how to check them.

What it is

OndaPro, made by DEKA in Italy, delivers patented Coolwaves microwave energy at 2.45 GHz through handpieces that work at different depths. Microwave energy behaves differently from laser or radiofrequency. It passes through the surface of the skin with relatively little absorption there and concentrates in the fat layer underneath, while an integrated cooling system protects the overlying skin throughout the session.

In the fat layer, the energy raises the temperature of fat cells past the point at which they can recover. The cells break down, and their contents are picked up by the lymphatic system, processed through the liver, and cleared through the body's normal metabolic pathways over the weeks that follow. The fat does not migrate, and it does not reappear somewhere else. It is metabolised, gradually.

The same session warms the dermis above more gently, which stimulates new collagen and gives a degree of tightening alongside the contouring. A shallower handpiece designed for the face treats the double chin and jawline. The deeper handpieces are used on the body.

OndaPro is also used at this clinic for cellulite, a separate effect of the same microwave energy. Published research on this device describes the energy being absorbed by the fibrous septae, the connective bands that pull the skin down between fat lobules and cause the dimpled appearance, loosening their dense collagen and prompting fibroblasts to lay down new, more elastic collagen in its place. A small, uncontrolled study of 26 women given four monthly sessions recorded a fall in a standard cellulite severity score from 10.7 to 4.5 out of 15, measured three months after the last session, with no serious side effects. That evidence is real but modest, and it is discussed honestly, with its limits, in our cellulite treatment explainer, which sets out what actually causes cellulite and what the evidence for each treatment shows.

What it does well

The defined, stubborn pocket. A lower belly that hangs on after pregnancy, flanks that sit one shape too wide, inner thighs, upper arms, the fullness under a chin. Fat distribution is substantially inherited, which is why a disciplined person can be lean everywhere except one area that training never touches. That pocket is what a contouring device is for.

It suits a patient who is already near a healthy weight, whose weight has been stable, and who can point at the specific area that bothers them. In that patient, a course of sessions produces a visible refinement of the contour, a smoother line along the flank, a flatter lower belly, a cleaner jawline.

The tightening effect earns its mention too. Where skin has softened with weight change, the collagen stimulation in the layers above the fat helps the surface follow the new contour rather than being left behind.

Cellulite on the buttocks and thighs is the other concern this device is used for here. The published evidence is early and comes mostly from small studies and an expert advisory board rather than large controlled trials, and it is best read on that basis rather than as a settled result.

What it does not do, and who it is not for

OndaPro will not produce weight loss. The mechanism explains why. Each session disrupts fat cells in one defined area, and the volume involved is small against the body's total. In a patient who is genuinely overweight, the same treatment produces a much smaller relative change, and the mirror shows little for the money and time spent. The device did its job. It was the wrong prescription.

So it is not for the patient whose real goal is to be smaller overall. That goal belongs to medical weight management, a category with its own proper tools and supervision. It is not for the patient whose stubborn fat turns out on examination to be mostly skin laxity, which needs a tightening or surgical conversation instead. It is not for the patient chasing a visible change by a fixed date, because the biology takes weeks. And some pockets are genuinely modest and better left alone, and we say that too. For how slimming, weight loss and contouring differ, see slimming treatment in Malaysia: what works and what does not.

Treatment is deferred in pregnancy, and there are standard medical exclusions for energy-based devices that Dr Ong screens for at assessment. If any apply, the plan changes before a handpiece is ever picked up.

Our view

Body contouring is the category in aesthetic medicine with the longest record of overselling. Devices arrive with confident claims and leave with quieter ones. OndaPro has kept its place in this clinic because the mechanism is sound, the limits are honest, and the patient it suits genuinely benefits from it. How OndaPro compares with Vanquish and laser lipo in Setia Alam explains why this device, and not those, is the one used here.

The assessment carries the weight. Dr Ong examines the depth and character of the fat layer, the quality of the skin above it, and the overall body composition before recommending the device, or a different tool, or nothing. A consultation that ends with a referral to weight management, or with reassurance that the area is better left alone, is a successful consultation.

The most expensive treatment is the wrong one, and this category supplies the textbook example: a contouring session bought as a weight loss shortcut.

Practical notes

A session takes thirty to ninety minutes depending on the area, with no downtime afterwards. The course of sessions about a month apart takes place at the clinic in Setia Alam, Shah Alam, so the whole diary can be planned at the first visit. Most areas benefit from a course of three to five sessions spaced about a month apart. Nothing visible changes on the table; the result develops as the body clears the disrupted fat, typically building over four to eight weeks and continuing through the months that follow.

The result holds on a stable weight. The cells cleared from the treated area do not return, but the cells that remain can enlarge if overall weight rises, which is why patient selection matters more than the machine. OndaPro at The Retreat Clinic in Setia Alam is assessed by Dr Ong, and the assessment decides whether it is the right tool at all.

Who should be doing this

OndaPro is a microwave device. Microwave devices are not named in Malaysia's Medical Device (Designated Medical Device) Order 2026, which covers specified lasers, HIFU and liposuction devices; like every medical device it must be registered with the Medical Device Authority, and the regulation hub shows how to check a device on the public register. Contouring with an energy device is an aesthetic medical procedure in the Ministry of Health's framework; which aesthetic procedures the Ministry of Health says only a registered doctor may perform is set out in our explainer, and how to check an aesthetic doctor in Malaysia in the verification guide.

What it costs and why

Body contouring by microwave energy is priced per area per session, and more than one session is usual; applicator size and treatment time move the fee, and the number for any one person is stated at consultation. How to read a fee for this class is on the cost guide.

Common questions

Is OndaPro a weight loss treatment?

No. OndaPro is body and face contouring for a localised, stubborn pocket of fat in someone already near a healthy weight. It will not move the scale in any meaningful way, and it is not for patients who need to lose significant body weight. Where weight itself is the concern, the honest category is medical weight management, and that is a different conversation.

Does OndaPro help cellulite?

It is one of the uses of this device at the clinic. The published evidence describes the microwave energy loosening the fibrous bands under the skin that cause the dimpled appearance, and a small study of 26 women recorded a fall in a standard cellulite severity score from 10.7 to 4.5 out of 15, three months after the last of four monthly sessions. That evidence base is still small and mostly short-term, and whether it fits your case, alongside or instead of the fat-contouring use, is decided at assessment.

Where on the body can OndaPro be used?

The common areas are the abdomen, flanks, thighs and arms, plus the area under the chin, which is treated with a shallower handpiece designed for the face. The candidates are defined pockets that diet and exercise have not shifted. Whether your area suits the device is confirmed at assessment, since the depth and character of the fat layer matter.

Does OndaPro hurt?

The treatment delivers heat to the fat layer while a built-in cooling system protects the surface of the skin throughout. Most patients describe warmth rather than pain, and the settings can be adjusted during the session to keep it comfortable. There is no downtime afterwards. The sensations and side effects on record are set out in OndaPro side effects: does it hurt, who should not have it.

How many sessions of OndaPro will I need?

Most areas benefit from a course of three to five sessions spaced about a month apart. The exact number depends on the area, the fat layer and the goal, and it is set at assessment rather than from a brochure.

How soon will I see results?

Nothing visible changes on the table. The body clears the disrupted fat gradually, so the change typically builds over four to eight weeks and continues developing through the months that follow. Contouring rewards patience.

Will the fat come back after OndaPro?

The fat cells cleared from a treated area do not return. The cells that remain, there and everywhere else, can still enlarge if overall weight rises, so the result holds on a stable weight. The treatment changes a contour. How your body stores fat stays the same.

Can OndaPro treat a double chin?

Yes. The area under the chin is treated with a shallower handpiece designed for the face and jawline. Fullness under the chin has more than one cause, so Dr Ong examines whether fat, skin laxity or both are contributing before recommending it.

Who should not have OndaPro?

Anyone whose real concern is overall weight rather than a localised pocket, anyone whose area is mainly loose skin rather than fat, and anyone expecting an overnight change. Treatment is also deferred in pregnancy, and standard medical exclusions are screened at assessment. When one of these applies, Dr Ong says so and maps the honest alternative.

Does OndaPro actually work?

OndaPro genuinely reshapes a defined pocket of fat and gives some skin tightening alongside, and in a patient who is already near a healthy weight, a course of sessions produces a visible refinement such as a smoother flank or a flatter lower belly. It will not move the scale in any meaningful way, so it is the wrong tool if the real concern is overall weight rather than one stubborn area. Whether your area suits it is confirmed at assessment.

Do you offer Emsculpt or similar body contouring?

Dr Ong does not offer Emsculpt specifically, which works by stimulating muscle. At The Retreat Clinic in Setia Alam, the body contouring option is OndaPro, which reduces a stubborn, localised fat pocket rather than overall weight. Whether that fits what you are after is an assessment question.

Is OndaPro the same as laser lipo or Vanquish?

No. Vanquish is a selective radiofrequency device and laser lipo is a shorthand for laser fat procedures, and The Retreat Clinic runs neither. All three reshape a localised pocket of fat, and none of them is a weight loss treatment. How OndaPro compares with Vanquish and laser lipo sets out the differences.

Is numbing cream used before OndaPro?

No. Numbing cream is not used for OndaPro at The Retreat Clinic.

Who performs OndaPro at The Retreat Clinic?

OndaPro sessions at The Retreat Clinic are carried out by qualified therapists certified in OndaPro, after Dr Ong Jin Khang has assessed each patient himself and decided whether it is the right treatment. The clinic has offered OndaPro since 2025. The clinic was the first in Setia Alam and Shah Alam to offer OndaPro, in 2025. Before OndaPro it was a certified CoolSculpting centre from 2017, with the first DualSculpting CoolSculpting system in Shah Alam in 2018, and in 2019 Dr Ong spoke at the CoolSculpting launch in Manila. He has been the clinic's only doctor since it opened in Setia Alam in April 2013; his Malaysian Medical Council registration (MMC 45245) and his Ministry of Health LCP for aesthetic practice can both be checked on public registers.

To know if OndaPro suits you, see Dr Ong.

In person, with Dr Ong. Skin and concerns are assessed. The right course is recommended, which may or may not include OndaPro.