The subject of the present invention is a process for dyeing keratinous material, in particular human hair, comprising the following steps: Application of an agent (a) to the keratinous material, the agent (a) containing at least one organic silicon compound and at least one surfactant, and Application of an agent (b) to the keratinous material, the agent (b) containing at least one pigment.

A second object of the present invention is a multi-component packaging unit containing means (a) and (b) in three separately assembled containers.

The subject matter of the present disclosure are agents for oxidative hair lightening or hair coloring, containing from about 70-90% by weight of a total of % of water, alkalizing agent, optionally a colorant, and a certain mixture of a cross-linked copolymer of acrylic acid and non-ethoxylated esters of acrylic acid with linear C10-C30 monoalcohols, anionic surfactant and linear, saturated C8-C22 alkan-1-ol, and sodium polyacrylate, whereby the brightening or coloring agent obtains an application-technically optimal viscosity and the consistency of a gel-like cream with an excellent haptics.

The present invention provides a gas supply device for lightening hair color, including a separating layer and a functional unit wrapped in the separating layer, wherein the functional unit includes a metal peroxide, an activator and a catalyst, the gas supply device further wraps a composition that generates carbon dioxide, nitric oxide, and/or hydrogen. The present invention discloses a use and method of a gas supply device for lightening hair color, including supplying oxygen to the scalp and the hair, and further reacting to generate active oxygen. The present invention further discloses a method for eliminating a dye on the hair by using the gas supply device.

A blending method is described for preparing a blended mixture. The blending method for preparing a blended mixture, the method includes: providing a control system having at least a processor, a computer-readable memory, and a display, wherein the memory contains software configured to receive a formula defining instructions for preparing a blended mixture using one or more blending materials and amounts for producing a batch size of the blended mixture on a scale; monitoring a weight on the scale as blending materials are added to a receptacle on the scale, both individually and in total; indicating on the display the amounts of the blending materials that have been added to the scale, both individually and in total, to prepare an amount of a custom blended mixture based upon the selected blending materials; determining an end weight of the custom blended mixture after a user has used the custom blended mixture; and recalculating a needed amount of the custom blended mixture by subtracting the end weight of the custom blended mixture from the prepared amount of the custom blended mixture.

Devices and methods for styling hair, and in particular, to devices and methods for styling hair using electrolysis are described herein. A method for styling hair includes arranging a section of hair between a first electrode and a second electrode. The section of hair is contacted with an electrolyte before being arranged between the first and second electrodes, after being arranged between the first and second electrodes, and/or concurrently with being arranged between the first and second electrodes. The method further includes causing the first electrode to have a first negative potential, and causing the second electrode to have a second potential, such that the absolute value of the first negative potential is greater than the absolute value of the second potential, and such that the difference in electrical potential between the first electrode and the second electrode creates an electrolysis zone between the first electrode and the second electrode.

An applicator for applying a product to hair, especially a hair colouring product, including: at least one first row of teeth extending longitudinally over a distance l.sub.1, from a first application face of the applicator; and a plurality of second rows of teeth, extending longitudinally over a distance l.sub.1, from a second application face of the applicator, which is arranged opposite the first application face, the ratio l.sub.1/l.sub.2 being lower than or equal to 0.75.

A method and device for selectively entraining hair strands from the scalp having at least one hooking applicator, the at least one hooking applicator employing a hook that rotates to entrain the hair strands, a hair color container having hair color therein and a way to apply the hair color to the entrained hair stands includes a hooking applicator, hair color container, and trigger mechanism. The trigger mechanism operates to entrain hair using the hooking application and apply hair color to the hair from the hair color container.

A method is described for the treatment and/or prevention of damaged keratin in a keratin-containing tissue, comprising the steps of: applying on the keratin-containing tissue a cosmetic composition comprising molecules carrying at least one light reactive functional group, and at least one photoinitiator; and leaving to process with exposure of the keratin-containing tissue to light, the light being of a wavelength suitable for activating said at least one photoinitiator. A cosmetic composition is also described comprising molecules carrying at least one light reactive functional group and at least one photoinitiator; and its use.

A device for selectively entraining hair strands from the scalp has at least one hooking applicator, the at least one hooking applicator employing a hook that rotates to entrain the hair strands, a hair color container having hair color therein and a way to apply the hair color to the entrained hair stands. The at least one hooking applicator forms a channel between a surface of the hook and a surface of a body portion of the at least one hooking applicator having a hair color outlet therein to better accommodate high viscosity liquid hair color. The hook and/or the at least one hooking applicator includes a recess to hold entrained hair and permit hair color to fill the recess for application. A trigger mechanism first rotates the hook to entrain hair strands and then squeezes the hair color container to apply hair color to the entrained hair.

Hair care product applicators and systems and methods thereof, are described herein. The hair care product applicator can have multiple platforms configured to hold, table, or confine respective portions of a group of strands of hair, where a first platform is configured to hold a first portion of the group of strands of hair, and a second platform, which can be spaced apart from the first platform, is configured to hold a second portion of the group of strands of hair. The second portion of the group of stands of hair can correspond to the entire group of stands of hair, and the first portion of the group of strands of hair can correspond to less than the entire group of strands of hair. An amount of hair care product can be discharged via a discharge opening for application to at least part of the group of stands of hair.