In one embodiment there is provided a method for preparing a hair dye mixture. The method includes a scale and control system in communication with each other. The control system provides for a memory and a display, wherein the memory contains a formula that defines instructions for blending a hair dye mixture. The method displays the instructions on the display. The stylist may then view the display of instructions and add colorant(s) and dye blending material(s) to a receptacle on the scale, in accordance with the instructions, using current product packaging, such that specialized packaging requirements are not required.
