What is a PMU machine?

A PMU (Permanent MakeUp) machine resembles a “pen-like” handheld device that can be equipped with various needle configurations. PMU machines may be cordless and use a lithium battery or be corded and have an AC/DC adapter. When in use, the needle(s) move in and out of the cartridge at a very fast speed while injecting the pigment into the skin. The PMU artist will choose the needle configuration (cartridge) that best suits the procedure.