How to choose the right conductive gel for each aesthetic appliance

In a professional beauty salon, very different technologies coexist, and with them comes a recurring question: which conductive product should be used with each device? Not all conductive gels are the same or serve the same purpose. Using the wrong product not only reduces the effectiveness of the treatment, but can also compromise the client's skin safety and the performance of the equipment.

This guide has one objective: to help you choose the right conductive gel for each aesthetic device, using clear and practical criteria that you can apply from day one in your clinic or at home. In other articles, you can learn more about what a conductive gel is and the most common mistakes when applying it. Here, we focus on comparative selection according to the equipment you use.

Why the type of device determines the conductive product

There is no single conductive gel suitable for all aesthetic devices. Each technology works with a different type of energy: mechanical waves, electrical current, or electromagnetic energy. Each requires a conductive medium with specific properties to function correctly.

The conductive product always fulfills three key functions:

• Transmit the device's energy to the skin evenly and efficiently.
• Protect the skin by preventing hot spots, friction, or signal loss.
• Allow the applicator head to glide smoothly over the treated area.

The viscosity, product base, and the presence of electrolytes or specific active ingredients vary completely depending on the device. Understanding this logic is the first step toward making the right choice.

Conductive gel for radiofrequency and diathermy: high-performance electrolytes

Radiofrequency and capacitive-resistive diathermy work with high-frequency electrical currents that generate heat in the deeper layers of the skin. To ensure that this current is transmitted evenly and in a controlled manner, the conductive product must reduce the skin's electrical resistance and guarantee homogeneous energy distribution between the electrode and the dermis.

For these technologies, Kefus offers two specific conductive gels with high-performance electrolytes:

Kefus Radiofrequency Conductive Gel 1000 ml is the standard option for radiofrequency treatments, capacitive-resistive treatments, and diathermy. Its formulation effectively reduces skin resistance to electrical current, lubricates and hydrates the skin, and facilitates smooth electrode movement throughout the session.

Kefus Slimming Radiofrequency Conductive Gel 1000 ml shares the same conductive properties and adds a specific cosmetic action: slimming, draining, and body-contouring effects. It is the most complete choice when the treatment objective includes reducing cellulite, localized fat deposits, or body contouring. It is also dermatologically tested and formulated for sensitive and reactive skin.

Selection criteria:

• If the treatment focuses on firming, rejuvenation, or diathermy without a slimming objective, the standard electrolyte conductive gel is the ideal option.
• If the treatment aims to address cellulite, localized fat, or body contouring, the slimming conductive gel provides an additional benefit during the session.
• Both are suitable for sensitive and reactive skin, making them a safe option for virtually all skin types.

Conductive gel for ultrasound, cavitation, and IPL: water-based and fluid

Facial ultrasound devices, body cavitation equipment, and IPL systems work with energy that requires a water-based medium for proper propagation. In ultrasound and cavitation, mechanical waves dissipate without a quality aqueous medium. In IPL, the gel also acts as a cooling and protective agent during light pulses.

For this family of devices, ultrasound conductive gels are the appropriate product. Their fluid texture, water-based formulation, and high conductivity make them compatible with all these technologies. Kefus offers them in various sizes, from 250 ml to 5,000 ml containers, in both a standard version and an Aloe Vera-enriched version for additional soothing and moisturizing benefits.

Selection criteria:

• Fluid texture, never greasy or overly emollient.
• Complete transparency for IPL and laser treatments.
• Easy removal without residue.
• Aloe Vera version when additional soothing action is desired, especially for sensitive skin or after intensive treatments.

Keep in mind that radiofrequency conductive gel with electrolytes is not interchangeable with ultrasound gel. Differences in viscosity and composition are critical. Using a gel designed for electrical currents with an ultrasound device can significantly reduce treatment effectiveness.

Radiofrequency conductive creams: the cream-texture alternative

For facial and body radiofrequency treatments, Kefus also offers a complete range of radiofrequency conductive creams as an alternative to electrolyte gels. The key difference lies in their texture and added cosmetic value.

While electrolyte conductive gels have a more aqueous base and primarily serve a technical conductive function, conductive creams feature a semi-dense, creamy texture that provides greater application comfort while combining conductivity with specific cosmetic actives.

The Kefus conductive cream range covers virtually every treatment objective:

• Anti-wrinkle and facial lifting.
• Dark spot reduction and skin tone unification.
• Eye bag and double chin treatments.
• Deep hydration and nourishment.
• Firming with an immediate tightening effect.
• Stretch mark and scar reduction.
• Body slimming and draining action.
• Physiotherapy and high-intensity diathermy applications.

These conductive creams are available in 500 ml facial formats and 1,000 ml and 5,000 ml professional body formats.

When should you choose a cream instead of a gel? When the radiofrequency treatment includes a specific cosmetic objective—such as addressing wrinkles, dark spots, or skin laxity—and you want the conductive product to contribute to that goal during the session. If the objective is purely technical or involves large body areas, electrolyte conductive gel may be more practical due to its easy application and removal.

Reference table: which conductive product to use with each device

Common mistakes when choosing a conductive product

Conocer los criterios de elección es útil, pero también lo es saber qué no hacer. Estos son los errores más habituales en cabina:

• Using the same gel for all devices.
• Replacing the conductive product with a standard moisturizing or Aloe Vera gel.
• Using slimming conductive gel for facial treatments when no slimming objective exists.
• Applying an insufficient layer of product.

The right product makes a difference in every treatment

Choosing the correct conductive gel is not a minor detail—it is part of the treatment protocol. Using a conductor specifically formulated for the technology being applied optimizes energy transmission, protects the skin, and improves visible treatment results. At Kefus, we develop our formulations in our own laboratory to provide products that truly perform, with quality ingredients and accessible pricing.

Whether you work in a professional salon or use aesthetic devices at home, there is a solution designed for your needs: from electrolyte conductive gels for electrical currents, to specific slimming formulas for radiofrequency, and conductive creams that care for the skin while treating it.

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