The skin of PicoSure laser can mean destroying pigment at the speed of "picosecond". As small as one trillionth of a second, that is to say, it is 1000 times faster than the ordinary laser therapeutic instrument. So PicoSure is to split the pigment at a faster speed. It used to take 10 times, but now it only takes 2~3 times for the pigment to disappear.