Provided is a demonstration apparatus comprising a top subassembly and a bottom subassembly. The top subassembly includes a reservoir adapted to contain a consumer product to be demonstrated. The consumer product has efficacy to produce a consumer-desired effect that is directly or indirectly observable. The bottom subassembly includes a vial containing a contaminant upon which the consumer product produces the consumer-desired effect. The top sub assembly and bottom subassembly are coupled to a reservoir seal element. Upon activation of the demonstration apparatus, the consumer product flows into the bottom subassembly and contacts the contaminant to produce the consumer-desired effect. Also provided, are a method of use for the demonstration apparatus and a kit containing the demonstration apparatus.