Radiofrequency, or RF, is a type of energy derived from radio waves and can be used both for skin resurfacing and for skin tightening. It delivers heat into the deep layers of the skin, causing the collagen structures to tighten and, over time, to produce new collagen.

The radiofrequency energy, has a kind of shrink-wrapping effect on the collagen deep in the skin, so the skin will regenerate from the inside.