A reaction and delivery implement that includes a handle configured for user manipulation, a head having a plurality of agent housing regions, the first agent housing region housing a first agent and the second agent housing region housing a second agent, the first and second agents being different is described. The head is configured to facilitate both prevention of intermixing of the first and second agents in a storage position as well as reaction of the first and second agents through intermixing in a delivery position so as to produce and apply a third agent to a contacted surface when in the delivery position. The reaction and delivery implement may be an oral care implement such as a toothbrush. The implement may also be motorized and may be used with a wide array of reactions.本發明揭露一種反應與傳送的用具，包括配置成供使用者操縱的一握把、具有複數個製劑容納區的一刷頭、第一製劑容納區容納有一第一製劑，以及第二製劑容納區容納有一第二製劑，第一製劑與第二製劑相異。刷頭配置成於儲存位置時避免第一製劑與第二製劑混合，並且於傳送位置時避免第一製劑與第二製劑透過混合的反應，俾以在傳送位置時產生並供應一第三製劑予一接觸面。反應與傳送用具可以是一口腔保健用具，例如一牙刷。該用具亦能夠是電動化的，且可使用在廣泛範疇的反應上。
