Abstract: A method for making micro-abrasions on human tissue comprising placing a handle having an open chamber therein on human tissue to close said chamber, applying suction to said chamber to sealingly engage the periphery of the chamber with the human tissue and partially sucking the human tissue into said chamber, inducing the flow of air into the chamber by the removal of air from the chamber by suction while restricting entry of ambient air from the surrounding atmosphere into the chamber around the periphery of the chamber, entraining a reducing substance in said flow of air prior to entry of the flow of air into the chamber, directing the reducing substance entering the chamber against the human tissue at an angle less than 90.degree.

Abstract: Apparatus for making micro-abrasions, particularly on human tissue, including a handle having an aperture which is intended to be positioned on the surface to be treated, and a nipple device for the metered supply of reducing substances in a pneumatic carrier to the aperture of the handle. The supply device comprises only a vacuum source connected to the handle to draw the reducing substances towards the aperture of the handle. A collector device is provided for collecting the used substances for disposal.