A hair-penetrating shield 220 comprises a tooth array having top 280 and bottom 290 surfaces. In some embodiments, for a majority of the teeth, a cross section of each tooth (for example, triangular in shape) has an asymmetric width profile such that the tooth cross section, on average, is narrower near the top of the tooth and wider near the bottom of the tooth. In some embodiments, a ratio between: i) a first average tooth width describing the average tooth width below the top-bottom midpoint; and ii) a second average tooth width describing the average tooth width above the top-bottom midpoint is at least 1.2, or at least 1.6. In some embodiments, a non-viscous hair-coloring agent is dispensed as a mist over the top of the surface of the shield so as to color roots of hair passing through the spaces between the teeth of the user's hair. In some embodiments, closely-spaced teeth of the hair penetrating shield protect the user's scalp from the non-viscous hair-coloring agent. Related methods and kits are disclosed herein.

A hair coloring appliance includes a handle and a hair color delivery system supported within the handle. A nozzle assembly is adapted to receive hair color. The nozzle assembly includes a stationary frame and a nozzle array through which the hair color is delivered to the hair and a plurality of filaments adjacent the nozzles which are longer than the nozzles, acting as a stand-off between the nozzles and the scalp. A motor reciprocates the nozzle array back and forth as hair color moves through the nozzles.

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.

An applicator for applying a product to head hair comprises a neck portion and a flexible/elastic spatula. The neck portion comprises inner threads and an upper end and the spatula comprises a free end at a distal end from said neck portion. The free end comprises an edge extending in a substantially orthogonal direction to the extension of the spatula, said edge having a dispensing opening. The spatula forms a flat shaped body portion between said neck portion and said flat shaped body portion. The applicator comprises a bridging portion, comprising a bottom extending in a substantially transversal direction to the neck portion. The substantially flat shaped body portion extends in a substantially orthogonal direction from said bottom, defining an internal channel extending from the dispensing opening to an inlet opening. The inlet opening is arranged at the lower side of the bottom in the interior of the neck portion.

A hair painting board fosters application of coloring and other hair treatments in an efficient manner. The hair painting board has a curved body to conform to the shape a client's scalp. A wider end of the hair painting board provides the option to a hair stylist to select a variety of hair strands from various areas of the scalp and apply treatment thereto quickly and efficiently. A narrower end is useful for application of treatment at smaller areas of the scalp. One or more notches in the curved body aid in grasping and manipulating the hair painting board.

A formula delivery appliance generally includes a formula delivery head having features to mix, direct, and distribute formulation through nozzles to a desired location, such as the hair or scalp of a user. In this regard, the formula delivery head may include a plurality of nozzles configured to discharge the formulation at a desired flow rate. In some instances, the flow rate across the plurality of nozzles is controlled such that each nozzle has a flow rate within a specified percentage of the average flow rate across the plurality of nozzles.

An applicator that causes a liquid applying material accumulated inside, for example, a cosmetic tool, such as an eye liner and an eyebrow pencil, or a gray-hair partially dyeing tool for hair, an eyebrow, or a similar part, to infiltrate into an application portion to use this liquid applying material for application or drawing from a distal end application portion.

A device includes a pump and a brushhead. The pump includes a housing and plunger. The housing has an upper opening, a cavity configured to store a composition therein, and a tip having a dispensing opening. The plunger is slidably disposed within housing such that it is moveable with respect to the housing. The brushhead includes a first plurality of bristle bores and a second plurality of bristle bores, each of which extend from a bottom surface of the brushhead towards an opposing top surface and have a bristle bundle extending therefrom. The brushhead includes a generally central throughhole extending between the bottom surface and the opposing top surface. The pump is coupled to the brushhead via the tip of the housing such that actuation of the plunger causes a portion of the composition stored in the housing to be dispensed on at least a portion of the bristle bundles.

A dyeing device for dyeing hair, the dyeing device including a delivery unit (2) for transferring dyeing agent to a hair (7). The delivery unit (2) includes a dyeing space (8) arranged to a container-like holder (9). For the dyeing device to permit the dyeing of an individual hair (7) that differs in tone from other hairs from the root end to the hair end without needing to dye the entire head of hair or larger hair areas containing numerous hairs, the delivery unit includes a guide element in the form of a passage (17) for receiving and guiding the individual hair (7) in the dyeing space (8) and for guiding the dyeing device in the longitudinal direction of the individual hair (7), and the bottom part of the container-like holder (9) tapers down-ward.

A cosmetic product for changing the color of keratin fibers, in particular human hair, includes a coloring preparation (F) that is packaged in a reclosable container (C), wherein the coloring preparation (F) includes, in a cosmetic carrier, (a) at least one first preservative from the group of sodium sulfite, potassium sulfite, potassium hydrogen sulfite, sodium hydrogen sulfite, zinc pyrithione, benzoic acid, salicylic acid, sorbic acid, formic acid, propionic acid and the physiologically acceptable salts of the aforementioned acids, and (b) at least one second preservative from the group of 2-phenoxyethanol, benzyl alcohol, 1-phenoxypropan-2-ol, isopropanol and ethanol, and (c) at least one oxidation dye precursor and/or one substantive dye.

A method for changing the color of the hair at the roots of the hair involves the use of such a product.