There are currently only a small number of RF only devices within the UK market place, targeted mainly at the process of facial rejuvenation via skin tightening; these include:
Thermage
The Thermage system is a monopolar RF device that uses patented technology within its ThermaTip to deliver RF energy deep into dermal tissues. This heating action causes deep collagen structures in the skin to immediately tighten. Over time, new collagen is produced by the body to further tighten the skin.
It was cleared by the U.S. Food and Drug Administration (FDA) in November 2002 for non-invasive treatment around the eyes, and then in June 2004 for the treatment of facial wrinkles, followed by off-face for the non-invasive treatment of wrinkles in January 2006. Thermage wass the first system to receive FDA clearance for non-invasive eyelid treatments which was received in June 2007.  It is also FDA cleared for the temporary improvement in the appearance of cellulite (when combined with vibration).
Accent
The Accent system boasts dual handpieces – a biopolar handpiece for volumetric dermal heating, aimed primarily at skin tightening treatments; and a monopolar one for a deep controlled penetration depth of the RF energy for fat reduction and cellulite treatment.
It was awarded a CE Mark in June 2005 for cellulite reduction, and FDA approval for the treatment of wrinkles in April 2007, with further approval for more applications currently pending.
Tripollar
TriPollar radio frequency uses mono-polar and bipolar devices which utilise one or two poles to conduct the RF energy, TriPollar RF is claimed to be the only radio frequency technology in the world that simultaneously combines the effects of mono and bi-polar radio frequency in a single treatment, which the manufacturers claim produces better results with less pain.