eposkin wovestyle * Regarding the handheld part of the probe (medium size), the output adjustment button is a little unresponsive. It reacts and switches the output when pressed twice. You can use it without any problems by switching the level on the main unit. * Also, there are scratches on the probe's wire. * The usage period is only about 3 months, so other than the above, it seems to be in good condition. This single device can be used for the whole body, including facial, body, bust-up, and scalp care, and can accommodate a wide range of treatment menus. By applying special electrical pulses to the skin, gaps are created in the cell membranes, allowing beauty ingredients to penetrate to the subcutaneous tissue. It has 20 to 60 times the penetration power of iontophoresis. It can also introduce high molecular weight ingredients such as GF* (cell growth factor) and hyaluronic acid, which are difficult to introduce with iontophoresis or ultrasonic introduction. It has a mild current waveform with little pain. Since there is no downtime, you can expect results from a single treatment without burdening the skin. The cleansing probe cleanses pores with 25,000 Hz ultrasonic vibrations per second. The micro-vibrations of the ultrasound remove excess keratin and dirt, promoting the penetration and absorption of active ingredients.