
A non-invasive treatment combining controlled dermal heating with collagen remodelling to improve skin firmness, elasticity and tone - with minimal downtime.
As autumn approaches, it’s the perfect time to reset and replenish skin after months of sun exposure, heat and humidity. CACI Rejuva Med features advanced Radio Frequency (RF) powered by ThermaSense™ technology. Combining advanced multipolar RF energy with an integrated skin temperature sensor, the technology enables precise, controlled delivery of thermal energy to support collagen stimulation and promote firmer, smoother and more resilient-looking skin.

Dean Nathanson, Managing Director of CACI explains: ‘Effective skin tightening using radio frequency is achieved when a temperature of between 42-45°C is reached at the skin surface. Too much heat will burn; conversely too little heat will not achieve the desired results.’
He continues: ‘ThermaSense™ technology is a heat sensor built into our Radio Frequency handset that monitors the temperature of the skin and advises the user (via an audio beep and green light) when the set temperature (42-45°C) of the RF handset has been reached on the skin surface. It then maintains the set temperature by switching the RF energy on and off to ensure that the set temperature is not exceeded.’
CACI Rejuva Med RF gently heats the mid-to-deep dermis to stimulate the skin's natural renewal response. The treatment targets collagen and elastin while leaving the skin's surface largely unaffected, making it a comfortable, non-invasive option for those seeking visible rejuvenation without significant downtime.
Unlike monopolar or bipolar technologies, Rejuva Med RF’s unique lattice array uses multiple electrodes (multipolar RF) to create overlapping energy fields. This allows for controlled, uniform heating across the targeted area, making the treatment both fast and exceptionally comfortable.
This controlled heat helps stimulate collagen and elastin production, supporting firmer, smoother, more resilient-looking skin and restoring a fresh, healthy-looking glow. Maximising results while minimising damage.
Radio Frequency forms part of the five step Rejuva Med treatment. Recommended: six to eight treatments, once a week. Safe for all skin tones and types.
How Radio Frequency Works
Radio Frequency (RF) skin tightening is a non-invasive treatment that uses electromagnetic energy to deliver controlled heat into the deeper layers of the skin.
The RF energy causes water molecules within the skin to move rapidly, creating friction and generating heat. This controlled thermal energy warms the dermis, where collagen and elastin are found.

What Does RF Heat Do?
As the deeper layers of the skin are heated, the existing collagen fibres contract, helping to create a firmer, tighter appearance. The controlled heat also stimulates the skin’s natural collagen production over time, supporting improved skin structure, elasticity and overall firmness.
The result is skin that looks and feels firmer, smoother and more toned, without the need for invasive procedures or needles.
Even Heating with Multipolar RF Technology
The RF Handset features a lattice array of 20 RF poles, designed to distribute energy evenly across the treatment area.
This provides:
Built-In Temperature Control
An integrated skin temperature sensor continuously monitors the skin during treatment, helping to maintain the optimal treatment temperature.
This helps to: