Abstract: A two-container dispenser for storing, mixing and dispensing hair dye for touch up applications. The dispenser retains and separates two hair dye components until they are to be mixed immediately prior to application of the dye. The two containers are permanently secured together via a valve assembly. When the valve assembly is in a closed position, the interior chambers and therefore the contents of the containers remain separated. When the valve assembly is opened by rotating one of the containers through 180 degrees, the two interior chambers are in fluid communication and the contents can flow between the containers to form a hair dye mixture. The connections between the first and second containers and the valve assembly are such that all three remain secured together when the valve assembly is moved between the closed and open positions.