The device has a high frequency (HF) energy source (2) producing HF current and a pair of electrodes (3a, 3b, 4a, 4b) subjecting tissue (1) with the HF current. The electrodes are connected with outputs HF energy source, where one of the electrode pair is designed as a monopolar electrode pair. Other pair of electrodes is designed as bipolar electrode pair connected with outputs of the HF energy source. The latter pair has a small contact electrode (3b) with a tissue contact surface area less than 2 centimeter square. An independent claim is also included for a method for cosmetic treatment of tissue using high frequency current.
