According to some embodiments, a microdermabrasion device for treating
skin comprises a handpiece
assembly having a distal end and a proximal end. The handpiece
assembly includes at least one delivery conduit and at least one waste conduit. The microdermabrasion device additionally comprises a tip configured to be positioned along the distal end of the handpiece
assembly, wherein the tip is adapted to contact
skin surface. In several embodiments, the tip comprises a lip, a first opening in fluid communication with the fluid delivery conduit and a second opening in fluid communication with the waste conduit. In one embodiment, the device includes one or more
abrasive elements positioned along a distal end of the tip, wherein the
abrasive elements are configured to selectively remove
skin as the tip is moved relative to a
skin surface. In some embodiments, the delivery conduit is configured to selectively deliver at least one time-release material to the
skin surface being treated.