The present disclosure relates to agents for lightening keratinous fibers, in particular human hair, comprising (a) at least one oxidizing agent, (b) at least one complexing agent of the general formula (I),

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and (c) at least one radical inhibitor.

This invention relates to an oxidative hair cream composition that contains at least one oxidative hair cream ingredient and at least one polymeric colorant.

The invention relates to hair colouring compositions in gel or emulsion-gel form containing no ethoxylated additives, ethanolamine or polyethylene glycols.

The present invention relates to a method for dyeing hair fibres, in particular a method which involves coating hair fibres with a hair dye composition and directing radio frequency electromagnetic radiation to the coated hair fibres to cause heating within the coated hair fibres by dielectric loss. The present invention also relates to kits and appliances for use in connection with the method, as well as the use of radio frequency electromagnetic radiation in reducing the effective dye-treatment time for hair fibres. In one aspect, there is provided a method of dyeing hair fibres, said method comprising the steps of: i) coating one or more hair fibres with a hair dye composition; and ii) directing radio frequency electromagnetic radiation having one or more frequencies from 1 MHz to 300 MHz to the one or more coated hair fibres to cause heating within the one or more coated hair fibres by dielectric loss. Preferably, the hair dye composition used in step i) is a permanent or demi-permanent hair dye composition that may be prepared by combining a dye lotion containing one or more dye precursors and an activator solution containing an activating agent, wherein the activating agent in the activator solution converts the one or more dye precursors in the dye lotion to active dye agents.

The present invention relates to a cosmetic process for treating keratin materials, in particular keratin fibers, preferably human keratin fibers such as the hair, using a) one or more direct dyes which are preferably neutral and b) one or more particular aliphatic ammonium salts, and to a composition comprising ingredients a) and b). The cosmetic process for treating keratin materials of the invention makes it possible to obtain a good color build-up up and, furthermore, the colors are vivid and chromatic.

The present invention relates to a process for dyeing keratin fibres, in particular human keratin fibres such as the hair, in one or more steps, comprising the application to said keratin fibres of a composition comprising one or more compounds of formula (I) and/or (II), and also to the use thereof for dyeing keratin fibres, and to a device: in which formula (I) or (II) R.sub.1, R.sub.3, R.sub.4, R.sub.5, R.sub.6, and n are as defined in the description. The compounds of formula (I) according to the invention can give powerful, chromatic and sparingly selective colourings with good colour build-up, which are resistant to the various attacking factors to which keratin fibres may be subjected, such as inclement weather, light, washing and perspiration. ##STR00001##

The group of inventions relates to the field of hairdressing and includes a method for the translucent dyeing of hair which is carried out by the step-by-step layered application of requisite compositions onto a strip of hair with mechanical action and constant monitoring of the process, said method comprising preparation of the hair for dyeing and dyeing with a dye which has been diluted with an oxidizing agent, wherein preparation for dyeing is carried out using compositions in the form of diffusions which are a mixture of components in which shampoo is used as an active substance, and dyeing is carried out using diffusions which are a mixture of components comprising an oxidative dye and a low-concentration oxidizing agent. The invention also relates to diffusions for implementing the method.

Cosmetic compositions and methods for changing the color of keratinic fibers are provided herein. In an embodiment, a cosmetic composition for lightening the color of keratinic fibers includes at least two separately packaged formulations (A) and (B), which are mixed immediately prior to application to give an application mixture. The formulation (A) includes at least one dye chosen from the group of oxidation dye precursors, direct dyes, or a combination thereof. The composition (B) is a flowable composition including water and at least one oxidizing agent. Formulation (A) has been packaged in a water-soluble film including, based on its total weight, at least about 60% by weight of a polymer mixture having a multimodal molecular weight distribution.

The subject of the invention is a composition for treating keratin fibers, comprising one or more oxyalkylenated fatty amide(s) of formula (I), one or more oxyalkylenated fatty alcohol(s), and one or more chemical oxidizing agent(s); it being understood that the oxyethylenated fatty alcohol(s)/oxyethylenated fatty amide(s) of formula (I) weight ratio is less than or equal to 1 and that the pH of the composition is less than or equal to 5.

Sn agent for coloring keratinic fibers, particularly human hairs, including in a cosmetic carrier

(a) at least one direct dye, and
(b) an inorganic buffer system comprising at least one inorganic acid (b1) and at least one inorganic salt of this acid or these acids (b2), and
(c) water.

Further, a cosmetic product includes the aforementioned colorant which is packaged in a pressurized aerosol container, with the pressurized aerosol container possessing an aerosol dispensing device with spray valve.

Finally, a method for increasing the nuance stability of colorants includes adding the aforementioned ingredients (a), (b), and (c) in the agent.