Packaging and delivery systems for personal care products and methods of providing samples or single units of use, include dispensing devices that produce a spray, mist, or stream delivery of measured amounts of personal care products packaged in internally pierced blister unit doses which protect the quality of the unused product and reduce the amount of product wasted in providing samples. Likewise, it is also a function of said device to carry out a second retention in case the first retention existing between the connector and the base part fails, thus preventing disconnection. The system and method also provides a technique for enabling user-level run-time control over the properties that are to be preserved, as well as the degree of change introduced. A control panel having a keypad overlay is mounted in the control housing. It is proposed that the spring element in the flux of force from the actuating element in the direction of the coupling element be fixedly connected to a first component in at least two actuating directions, and in the opposite direction of the flux of force, be fixedly connected to a second component at least in the two actuating directions.