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What is cavitation and how does it work?

What is cavitation and how does it work?

Cavitation is a non-invasive aesthetic treatment that uses ultrasound to work on localized fat and improve body contour. It is not intended for weight loss, but for treating specific areas within a body protocol with realistic expectations and proper aftercare.

What cavitation is and which areas it is suitable for

Aesthetic cavitation is used in body treatments to target localized fat deposits without surgery.

What cavitation is for

Its purpose is to help improve the appearance of certain body areas and complement body contouring protocols. Therefore, it does not replace healthy habits nor should it be considered a solution for weight loss.

It is commonly used to:

  • treat localized fat
  • improve body contour
  • support anti-cellulite protocols
  • improve the overall appearance of the skin in specific areas

Areas of application

It is applied to areas such as the abdomen, flanks, waist, hips, thighs, buttocks, arms, or legs. As a non-surgical procedure, it does not require anesthesia or recovery time.

How ultrasound waves work and what a session is like

The treatment works through low-frequency ultrasound directed at adipose tissue. With the help of a conductive gel, the device emits localized waves over the treatment area.

What happens inside the body? Ultrasound energy acts on fat deposits, and the body gradually processes and eliminates them.

A professional session usually follows this sequence:

  • Preparation of the area: cleansing and application of conductive gel to facilitate the movement of the device
  • Ultrasound application: the device moves continuously; sensation of mild vibration and moderate warmth
  • Action on the tissue: breakdown of fat cells; painless
  • Natural processing: the body eliminates residues through urine and sweat
  • Cosmetic reinforcement: specific products are applied after the session

“During the session, the sensation is usually described as a mild vibration with moderate warmth in the treated area.”

It is important to review possible contraindications before starting. In cases such as pregnancy, breastfeeding, active electronic implants, metal in the treatment area, skin lesions, or certain liver and kidney conditions, a prior professional assessment is recommended.

Expected results and how to enhance them

Cavitation can help redefine body contour and is part of protocols aimed at improving the appearance of cellulite and skin texture. Results are gradual and localized, as the body needs time to process the treated tissue.

Factors influencing results

The response to treatment may vary depending on:

  • the treated area
  • protocol consistency
  • type of equipment
  • individual response
  • pre- and post-session care

Duration of results

Results may last between 3 and 6 months. With healthy habits and maintenance sessions every 4–6 months, the effects can be prolonged.

How to support and enhance the treatment

To maintain results, it is important to follow a consistent routine between sessions. Proper hydration helps eliminate residues, while protocol continuity consolidates progress.

This is complemented by professional follow-up and the use of body cosmetics with slimming or firming action. Although often used together, they serve different purposes:

  • Slimming gel: targets specific areas to support volume reduction routines and improve skin appearance
  • Firming gel: focuses on improving firmness and tone in cases of flaccidity or loss of elasticity

These formulas often include active ingredients such as:

  • L-Carnitine: fat mobilization
  • Caffeine: activates microcirculation
  • Green tea: antioxidant and draining
  • Centella asiatica: improves firmness
  • Horsetail: promotes drainage
  • Aloe vera: hydrates and regenerates

Cavitation and body care with Kefus

Cavitation is an effective treatment for localized fat and body contouring, but its results are enhanced with a proper care routine.

Aesthetic centers such as joestetica.tarragona already use our products in their protocols. They apply Kefus conductive gel to facilitate the movement of the device and, afterward, an anti-cellulite slimming gel with carnitine, green tea, caffeine, horsetail, centella asiatica, and aloe vera. The result: smoother, firmer, and more even skin.

At Kefus, we develop professional body cosmetics to complement cavitation treatments, improve skin texture, and extend results. Discover our body care range at kefus.com.



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