The Discovery Pico laser of Quanta System is the latest and the most advanced picosecond laser on the market. It has the power of 1.8 GWatt and emission of 450 picoseconds and it is the most powerful laser with the lowest duration of energy emission on the market. These two technical characteristics explain how it is able to break into fine fragments the tattoo pigment, even at great depths, and then it allows the patient’s immune system to delete them. The energy can be emitted in nanoseconds and in repeat mode for a less aggressive treatment. The energy can also be emitted in microseconds to obtain an effect of the skin’s toning. The square spot profiles, due to the even energy distribution over the treated area, decrease the risk of unwanted overlapping of treatment so as to avoid too aggressive treatment.