Disclosed are methods and compositions for treatment of acne or acneform conditions, particularly but not limited to, acne vulgaris with products generated from culture of stem or progenitor cells. An inner wall divides the chamber into a plurality of compartments including an inflow compartment, outflow compartment, bi-directional compartment and drain compartment. Depending on the position of the handle, an evaluation device outputs different control signals for an actuating device of the parking brake.