ONDA Pro Slim Program

What is the Onda Pro Slim program?

Onda Pro Slim uses Coolwaves® technology, high-frequency microwave energy at 2.45 GHz that targets fat cells directly. The energy passes through the surface of the skin and builds heat in the fat layer and the dermis without damaging the upper skin, producing a 3-in-1 result: fat reduction + skin tightening + smoother skin texture.

The ONDA PRO platform comes with three handpieces designed for different purposes:

  • Deep Handpiece — reaches 1.2 cm into the fat layer, suited to deeper fat deposits and cellulite. This is the main handpiece used in the Onda Pro Slim program.
  • Shallow Handpiece — 0.7 cm depth, suited to fat under the chin, along the jawline and on the cheeks.
  • Pocket Handpiece — for facial skin tightening, helping lax skin feel firmer.

How Coolwaves® works in the Onda Pro Slim program

  • Deep and selective energy delivery

The 2.45 GHz microwave of Coolwaves® has an unusual property: it passes through the upper layers of skin while generating very little heat there, so around 80% of the energy reaches the subcutaneous fat directly.

  • Lipolysis and adipolysis

As heat from the microwave energy reaches the fat layer, the fat cells (adipocytes) undergo blebbing — the cell membrane begins to lose its integrity and releases fat, until the membrane breaks down (lipolysis) and the fat cell is destroyed. The body then sends macrophages to clear the released fat, which is drained through the lymphatic system.

  • Intelligent cooling system

The ONDA PRO device cools the skin automatically, adjustable down to 5°C, with three temperature sensors in the Deep and Shallow handpieces to prevent excess heat at the skin surface. The skin feels cool and comfortable while you notice a mild warmth deeper down — a sign the energy is working at the fat layer.

  • Collagen and elastin stimulation

Alongside fat reduction, controlled heat reaching the dermis stimulates fibroblasts to produce new collagen and elastin with better elasticity, so the skin firms up as the fat volume decreases.

Three results in a single treatment

  • Fat reduction — fat cells are destroyed and cleared by the body through the lymphatic system. Cells that are destroyed are not replaced.
  • Skin tightening — new collagen is stimulated, so the skin stays firm and elastic as the contour changes.
  • Cellulite reduction — hardened collagen fibres are broken down, smoothing the skin surface and reducing the orange-peel appearance.

Which areas can Onda Pro Slim treat?

At DR. SUPRANEE CLINIC the Onda Pro Slim program focuses on excess fat on the body, covering:

  • Abdomen — upper and lower, front and sides
  • Waist and flanks — love handles, for a more defined waistline
  • Hips and outer thighs (trochanter) — reducing width across the hips
  • Inner thighs — for a slimmer thigh contour
  • Upper arms — reducing loose arm fat and firming the skin
  • Back and bra line — fat under the bra and across the mid-back
  • Posterior thighs — cellulite reduction and tightening
  • Buttocks — firming and cellulite reduction
  • Above the knee

Who is Onda Pro Slim suitable for?

  • People of normal build who have specific areas that will not reduce
  • People whose skin has become lax after weight loss
  • People who want fat reduction without surgery and without downtime
  • People with cellulite on the legs or hips who want smoother skin
  • People with localised fat that has not responded to exercise or diet

Relative contraindications

The doctor will assess each case individually for anyone with the following:

  • Open wounds, acute inflammation or infection in the treatment area
  • Current use of blood thinners or anticoagulants
  • Use of retinoids or skin supplements within the past month
  • Surgery within the past 6 weeks
  • A history of keloid or abnormal wound healing
  • Varicose veins in the treatment area
  • BMI over 30 (the program is intended for localised fat, not for obesity)

How many sessions, and when will results appear?

GoalSessions / interval
Fat reduction (mild to moderate)2-4 sessions, 4 weeks apart
Fat reduction (substantial)4-8 sessions, 4 weeks apart
Cellulite reduction4-6 sessions, changes visible from the 1st-2nd session
Skin tightening / maintenance1-2 sessions per year to maintain results
  • Treatment time: approximately 30-60 minutes per session, depending on the area treated
  • Results: visible from the first session, continuing to develop over 2-3 months

(Individual results may vary.)

Preparation and aftercare

Before treatment

  • Clean the treatment area thoroughly, removing creams, lotions, perfume and any residue
  • Do not apply cream, lotion or oil to the area to be treated
  • Remove metal jewellery before the session
  • Drink at least 2 litres of water a day, starting before your first session

After treatment

  • Increase your water intake so the lymphatic system can clear the released fat efficiently
  • Avoid hot baths and spa treatments for 24-48 hours while any redness settles
  • Avoid strenuous exercise on the first day
  • You can return to your normal daily routine straight away

Possible side effects

These are usually mild and settle within a few days:

  • Mild redness (erythema) or a feeling of warmth in the treated area — normal, and settles within a few hours
  • Slight swelling or a tight, numb sensation — settles within 1-2 days
  • Subcutaneous nodules are a rare side effect and generally resolve on their own, particularly with regular lymphatic massage

Why we use Onda Pro Slim at DR. SUPRANEE CLINIC Thonglor

  • Comfortable: continuous 5°C surface cooling keeps the skin cool throughout, so treatment is well tolerated and topical anaesthetic is usually not required
  • Precision-GigaWave (PGW): energy is concentrated where it is needed rather than spreading into surrounding tissue
  • No downtime: no wounds, no bruising, and you can go straight back to work or your usual routine

Why choose the Onda Pro Slim program at DR. SUPRANEE CLINIC?

  • Dr. Supranee has over 20 years of experience
  • Every treatment plan is assessed and designed individually
  • We use the latest ONDA PRO device from DEKA, Italy — verify the device here
  • The clinic has a full range of current, standardised equipment — not only Onda Pro but other body contouring technologies that work well in combination, including CoolSculpting Elite and Emsculpt NEO, so the doctor can plan the most suitable treatment for each individual
  • The clinic is in the well-known Thonglor area, Sukhumvit 55
  • Dr. Supranee and the team provide attentive care, emphasising high quality at reasonable prices
  • The clinic atmosphere emphasises privacy and comfort

Frequently asked questions

Q: Is Onda Pro Slim painful?

A: The program is designed to be comfortable during treatment. Most people feel coolness at the skin surface (from the 5°C cooling system) and mild warmth underneath — a normal sign that the energy is working. Topical anaesthetic is generally not needed, since numbing the area reduces your ability to give feedback and adds risk.

Q: Can several areas be treated in the same visit?

A: Yes. The doctor can assess and plan several areas within one appointment, depending on the size of the areas and your overall condition.

Q: How long do the results last?

A: Fat cells that have been destroyed do not come back, but the remaining fat cells in the area can still enlarge if you gain weight. Skin tightening and cellulite results last around 6 months to a year — DEKA clinical data reports results maintained for 9-12 months. Keeping your weight stable and living healthily helps results last longer. (Individual results may vary.)

Q: How does Onda Pro Slim differ from liposuction?

A: Liposuction is surgery requiring general anaesthesia, with incisions, 2-4 weeks of recovery and higher risk. Onda Pro Slim is non-invasive, with no wounds and no downtime, and suits people who want a gradual, natural change. It is not a weight-loss treatment for obesity.

Q: How does Onda Pro Slim differ from CoolSculpting (cryolipolysis)?

A: CoolSculpting uses cold to destroy fat cells and reduces fat well, but does not tighten skin or address cellulite, and swelling or bruising can last 2-4 weeks. Onda Pro Slim works on all three at once — fat reduction, skin tightening and cellulite — with no downtime.

Q: How much water should I drink afterwards?

A: At least 2 litres of water a day, starting a few days before treatment and continuing throughout the course, so the lymphatic system can clear the released fat efficiently.

For more inquiries

Please Call 098-829-0922 or

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