Abstract: A removable cartridge is provided for use with a microdermabrasion unit. According to some embodiments, the cartridge includes a crystal source portion and a crystal waste portion. Moreover, the removable cartridge is adapted to receive a transfer apparatus from a microdermabrasion unit, the transfer apparatus being adapted to transfer crystals from the removable cartridge to the microdermabrasion unit. In other embodiments, the removable cartridge includes (i) a crystal source portion, (ii) a crystal waste portion, and (iii) a re-sealable portion adapted to prevent crystals from leaving the removable cartridge when a transfer apparatus is not present.