Radio waves may even be amplified by the body. We can demonstrate this by touching the television antenna and watching the picture get better. The shortwave method of permanent hair removal is simply the introduction of radio waves via a tiny electrode into the area at the bottom of the hair follicle. The moisture in the vascular cells then resist the current flow and heat up. Fats are also a factor in this resistance.
Fats actually heat up faster than water.
Shortwave operates on the same principle as the microwave oven. The coagulation of vascular tissue in the follicle results in a microscopic burn from heat generated. The area of destruction varies with the intensity of the current and duration of exposure. These intense light devices operate within the visible light range and encompass all wavelengths, therefore is white. Intensified light is reflected, refracted, scattered, resisted and absorbed.