#$%^&*AU2019100652A420190718.pdf#####ABSTRACT A micro-needling cartridge to be connected to a cosmetic pen device for the purpose of causing micro damage to the skin in a uniform pattern so as to encourage and stimulate a natural healing response producing and increasing the production of collagen in the damaged skin to provide an anti-aging effect. The cartridge is a single use cartridge containing a plurality of needles and is connected to an electric motor device housed in the pen device, the motor driving the needles in a reciprocating motion.