
The reference point for one session that holds a long time.
Radiofrequency heats the inside of the skin as a whole while the surface is kept cool and protected. The heat makes collagen inside the skin shrink on the spot, so it tightens right away, and new collagen is laid down while it recovers. So an immediate change and a change over the following months come together. It reaches deeper than other radiofrequency devices.
One session lasts one to two years. Right after the session there is a tightened feeling as collagen contracts, and then new collagen builds over two to six months, peaking at around six. Having both an immediate change and a change over months is what characterises it.