Radiofrequency is a type of energy, which is measured in “frequency,” or wavelengths per second. All types of energy, from the sound waves your iPod emits, to sunlight, to the heat coming off your body, to gamma rays, are classified according to their frequency on the “electromagnetic spectrum.”
Like any form of energy, RF has the capacity to produce heat—and while each brand-name application uses a slightly different technology, all work by heating the skin’s deeper layers to induce new collagen and elastin production and encourage cell turnover, helping skin become firmer, thicker and more youthful-looking.
An advantage of using RF to heat tissues, as opposed to lasers (which use higher-frequency light waves), is that the lower frequency of RF can safely penetrate to a deeper level, helping to improve skin tone and structure, even lifting tissues. Lasers for the most part work to improve the skin’s surface. Moreover, RF can safely treat more patients with different skin tones without risking permanent discoloration.
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