A hair color retouch kit, components of the kit, and methods of use and doing business. The kit can include one or more mixing containers. In one embodiment, a mixing container provides a colorant compartment for sealingly or separately containing a custom hair coloring formulation and peroxide compartment for sealingly or separately containing peroxide. The mixing container(s) can be used by a professional hair colorist to provide a hair coloring client with custom hair coloring formulation and peroxide that can be mixed and applied by or for the client to hair regrowth that occurs after a hair coloring session with the professional. The kit can provide other components as desired, such as a mixing spatula, an applicator brush, and instructions for example. The kit can be packaged in attractive and efficient packaging, include indicia identifying the source of the kit, and be customized to promote the colorist, salon, or other entity.

The present disclosure relates to a dispenser, comprising: a housing; a plurality of cartridges which are disposed inside the housing; a mounting body to which the plurality of cartridges are mounted so as to be replaceable; a main motor which rotates the mounting body; and an elevating body which elevates such that a composition is discharged from any one of the plurality of cartridges, wherein the elevating body may be disposed so as to be displaced on a rotation path on which the plurality of cartridges rotate.

A valve for injecting a fluid into a bowl has a vent with an inlet and a flexible diaphragm for covering the discharge opening of the vent. The diaphragm is connected to a vessel body of a bowl, and the vent is connected to a stand of a bowl. The diaphragm has a closing area for closing the discharge opening and a connecting area for connecting the diaphragm with the vessel body spaced to the vent. At least one window is provided between the closing area and the connecting area.

A valve for injecting a fluid into a bowl has a vent with an inlet and a flexible diaphragm for covering the discharge opening of the vent. The diaphragm is connected to a vessel body of a bowl, and the vent is connected to a stand of a bowl. The diaphragm has a closing area for closing the discharge opening and a connecting area for connecting the diaphragm with the vessel body spaced to the vent. At least one window is provided between the closing area and the connecting area.

A hair coloring brush is disclosed having a central base portion, a pick handle extending from the central base portion, and a plurality of bristles extending out from the central base portion, the bristles each have an end portion with the end portions forming a curved surface.

A hair coloring brush is disclosed having a central base portion, a pick handle extending from the central base portion, and a plurality of bristles extending out from the central base portion, the bristles each have an end portion with the end portions forming a curved surface.

A bowl is disclosed having a basin portion having a slanted back wall portion, a bottom portion, a front straight wall portion, a pair of side wall portions, and a top portion, and a handle extending from the top portion.

A bowl is disclosed having a basin portion having a slanted back wall portion, a bottom portion, a front straight wall portion, a pair of side wall portions, and a top portion, and a handle extending from the top portion.

A method is provided for preparing a hair dye color mixture. The method includes: providing a control system having at least a memory, input controls, and a display; storing in the memory at least one formula, the formula including one or more colorants and/or dye blending materials, and wherein each colorant and/or blending material is separately assigned to an initial product brand; receiving input from the input controls to change a colorant and/or blending material from the initial product brand to one or more subsequent product brands, and wherein the control system recalculates components of the formula using the one or more subsequent product brands in response to receiving input from the input controls; and matching the color of the hair dye color mixture made from colorants and/or dye blending materials of the initial product brand using colorants and/or dye blending materials of the one or more subsequent product brands, in response to the input.

A method is provided for preparing a hair dye color mixture. The method includes: providing a control system having at least a memory, input controls, and a display; storing in the memory at least one formula, the formula including one or more colorants and/or dye blending materials, and wherein each colorant and/or blending material is separately assigned to an initial product brand; receiving input from the input controls to change a colorant and/or blending material from the initial product brand to one or more subsequent product brands, and wherein the control system recalculates components of the formula using the one or more subsequent product brands in response to receiving input from the input controls; and matching the color of the hair dye color mixture made from colorants and/or dye blending materials of the initial product brand using colorants and/or dye blending materials of the one or more subsequent product brands, in response to the input.