An application device for applying hair-coloring composition includes a device body, having a first reservoir with a first piston; the first reservoir configured to receive a first part of a hair-coloring composition; a second reservoir including a second piston; the second reservoir configured to receive a second part of a hair-coloring composition; and a dispensing mechanism associated with the first piston and with the second piston; the dispensing mechanism configured to sealingly move the first piston inside the first reservoir and the second piston inside the second reservoir; and an application cap including a mixing mechanism; and a plurality of projecting tines.

Cosmetic applicators for applying a cosmetic to a body part of a person are disclosed. The cosmetic applicators include containers in which cosmetics of different colors are respectively contained. The applicators are constructed so that the cosmetics can either be applied together or to be applied individually.

Cosmetic applicators for applying a cosmetic to a body part of a person are disclosed. The cosmetic applicators include containers in which cosmetics of different colors are respectively contained. The applicators are constructed so that the cosmetics can either be applied together or to be applied individually.

The present invention relates to a composition for dyeing keratin fibers, comprising at least one fatty substance; at least one surfactant; at least one dye for keratin fibers, having a log P greater than or equal to 1.3; at least one alkaline agent; at least one chemical oxidizing agent; at least 0.5% by weight relative to the weight of the composition of at least one liquid non-ionic compound having a Hansen parameter H below 16 MPa ; the fatty substance content representing in total at least 25% by weight relative to the total weight of the composition. The present invention also relates to a method using this composition, and to multi-compartment devices that are suitable for using this invention.

Cosmetic applicators for applying a cosmetic to a body part of a person are disclosed. The cosmetic applicators include containers in which cosmetics of different colors are respectively contained. The applicators are constructed so that the cosmetics can either be applied together or to be applied individually.

An application device for applying hair-coloring composition, comprising a device body, comprising a first reservoir comprising a first piston; the first reservoir configured to receive a first part of a hair-coloring composition; a second reservoir comprising a second piston; the second reservoir configured to receive a second part of a hair-coloring composition; and a dispensing mechanism associated with the first piston and with the second piston: the dispensing mechanism configured to sealingly move the first piston inside the first reservoir and the second piston inside the second reservoir; and an application cap, comprising a mixing mechanism; and a plurality of projecting tines: wherein the application cap is configured for reversible-connection with the device body such that, when the application cap is connected with the device body, the first reservoir and the second reservoir are sealed from the outside except channels of the plurality of projecting tines which are in fluid communication with the first reservoir and the second reservoir, through the mixing mechanism; and wherein the dispensing mechanism is configured, when activated, to move the first piston and the second piston towards the plurality of projecting tines thereby mixing the first part of the hair-coloring composition with the second part of the hair-coloring composition to form a mixed hair-coloring composition to be dispensed through the plurality of projecting tines.

A formulation delivery appliance can be used for treatment of the hair and scalp, such as an appliance used to color hair. The appliance may include a container having an aperture and being configured to retain a volume of formulation. The formulation delivery appliance may further include an elongate engagement element having a channel extending therethrough and being configured to be at least partially received by the aperture of the container when the container is mounted to the engagement element. A vent aperture is formed in the engagement element and provides fluid communication between the channel and an area outside of the engagement element when the container is disengaged from the engagement element. The vent aperture is sealed, and the channel receives a flow of formulation from the container when the container is mounted to the engagement element.

Hair treatment formulations, dispensing devices, and methods provide safer, cleaner, less complicated alternatives to existing permanent hair dye kits for home or salon use. In some embodiments, a hair treatment formulation includes a dispersion and an aqueous solution. The dispersion includes a continuous phase including an oil as well as a dispersed phase including a pigment precursor and a catalyst for increasing an oxidation rate of the pigment precursor. The aqueous solution includes an oxidant for oxidizing the pigment precursor to a pigment. The dispersion and the aqueous solution form an emulsion for hair treatment upon their combination, the emulsion including the pigment. In some embodiments, the dispersion and the aqueous solution are distributed between compartments of a dispensing device for simultaneously combining the dispersion and the aqueous solution in a mixing tip to form the emulsion including the pigment through a dispensing action of the dispensing device.