A device for selectively destroying dividing cells in a target area of a living tissue, the dividing cells having polarizable or polar or charged intracellular components, the device comprising: a first insulated electrode (230; 1210) having a first conductor; a second insulated electrode (230; 1200) having a second conductor; an electric field source connected to the first and second insulated electrodes (230; 1210; 1200) to apply an alternating electric potential difference along the first and second conductors having a frequency between about 50 kHz to about 500 kHz and an electric field strength of between about 0.1 V / cm to about 10.0 V / cm to create a state in dividing cells that encourages their destruction; an intermediate component (270) formed by a filler material placed between one of the first and second insulated electrodes (230; 1210; 1200) and a skin surface when placed on living tissue, the filler material having a conductance high and a third conductor (1100; 1400) placed inside the intermediate component (270), so that the filling material of the intermediate component (270) completely surrounds the third conductor (1100; 1400).Un dispositivo para destruir selectivamente células en división en un área diana de un tejido vivo, teniendo las células en división componentes intracelulares polarizables o polares o cargados, comprendiendo el dispositivo: un primer electrodo aislado (230; 1210) que tiene un primer conductor; un segundo electrodo aislado (230; 1200) que tiene un segundo conductor; una fuente de campo eléctrico conectada al primer y al segundo electrodos aislados (230; 1210; 1200) para aplicar una diferencia de potencial eléctrico alternante a lo largo del primer y el segundo conductores que tiene una frecuencia de entre aproximadamente 50 kHz a aproximadamente 500 kHz y una intensidad de campo eléctrico de entre aproximadamente 0,1 V/cm a aproximadamente 10,0 V/cm para crear un estado en las células en división que incentive su destrucci