Bleaching powders, kits-of-parts for bleaching, and bleaching methods comprise at least xanthine and/or xanthine derivatives, wherein it was unexpectedly found that xanthine and/or xanthine derivatives in bleaching powder reduce damage to keratin fibers during bleaching methods or processes.

Bleaching powders, kits-of-parts for bleaching, and bleaching methods comprise at least xanthine and/or xanthine derivatives, wherein it was unexpectedly found that xanthine and/or xanthine derivatives in bleaching powder reduce damage to keratin fibers during bleaching methods or processes.

An aqueous oxidizing composition comprising a xanthine derivative is described. The composition may comprise more than 5% by weight of hydrogen peroxide. The composition may further comprise a lipophilic compound or a surfactant, and may be applied to keratin fibers. It has been unexpectedly found out that xanthine derivatives stabilize hydrogen peroxide compositions during storage.

An aqueous oxidizing composition comprising a xanthine derivative is described. The composition may comprise more than 5% by weight of hydrogen peroxide. The composition may further comprise a lipophilic compound or a surfactant, and may be applied to keratin fibers. It has been unexpectedly found out that xanthine derivatives stabilize hydrogen peroxide compositions during storage.

A process for dyeing keratinous material is provided. The process includes (1) applying a coloring agent (a) to the keratinous material. The coloring agent (a) includes (a1) at least one amino-functionalized silicone polymer and (a2) at least one colorant compound. The method further includes (2) allowing the coloring agent (a) to act on the keratinous material for a period of 15 seconds to 10 minutes, and (3) rinsing out the dye (a) under running water for a period of 15 seconds to 10 minutes. In the process, no further cosmetic agent other than the coloring agent (a) is used.

A process for dyeing keratinous material is provided. The process includes (1) applying a coloring agent (a) to the keratinous material. The coloring agent (a) includes (a1) at least one amino-functionalized silicone polymer and (a2) at least one colorant compound. The method further includes (2) allowing the coloring agent (a) to act on the keratinous material for a period of 15 seconds to 10 minutes, and (3) rinsing out the dye (a) under running water for a period of 15 seconds to 10 minutes. In the process, no further cosmetic agent other than the coloring agent (a) is used.

A method to produce an effective cool tone with blonde hair color, while performing the hair dyeing process. To that end, the desired blonde hair color may be achieved by incorporating pigmented capsules and/or any pigmentation agent into the hair bleach mixture and/or the hair peroxide mixture. The pigmentation agent provides a cool tone effect while simultaneously removing unwanted yellow and orange undertones from hair during the hair bleaching process. Accordingly, the method includes producing pigmented hair bleach mixture and pigmented hair peroxide mixtures for performing the hair lightening process. However, it is important to note the scope of the method includes incorporation of pigmented capsules and/or any pigmentation agent into any and all related hair dyeing or hair coloring and hair care products to achieve toning of hair.

A method to produce an effective cool tone with blonde hair color, while performing the hair dyeing process. To that end, the desired blonde hair color may be achieved by incorporating pigmented capsules and/or any pigmentation agent into the hair bleach mixture and/or the hair peroxide mixture. The pigmentation agent provides a cool tone effect while simultaneously removing unwanted yellow and orange undertones from hair during the hair bleaching process. Accordingly, the method includes producing pigmented hair bleach mixture and pigmented hair peroxide mixtures for performing the hair lightening process. However, it is important to note the scope of the method includes incorporation of pigmented capsules and/or any pigmentation agent into any and all related hair dyeing or hair coloring and hair care products to achieve toning of hair.

The subject of the present disclosure is a method for dyeing keratinous material, in particular human hair, comprising the following steps: Application of an agent (a) to the keratinous material, wherein the agent (a) comprises: (a1) at least one organic silicon compound selected from the group of silanes having one, two or three silicon atoms, and
(a2) at least one hydroxycarboxylic acid ester,
(a3) at least one diol and Application of an agent (b) to the keratinous material, wherein the agent (b) comprises: (b1) at least one sealing reagent,
wherein at least one of the agents (a) and (b) further comprises at least one colorant compound selected from the group of pigments and/or direct dyes.

The subject of the present disclosure is a method for dyeing keratinous material, in particular human hair, comprising the following steps: Application of an agent (a) to the keratinous material, wherein the agent (a) comprises: (a1) at least one organic silicon compound selected from the group of silanes having one, two or three silicon atoms, and
(a2) at least one hydroxycarboxylic acid ester,
(a3) at least one diol and Application of an agent (b) to the keratinous material, wherein the agent (b) comprises: (b1) at least one sealing reagent,
wherein at least one of the agents (a) and (b) further comprises at least one colorant compound selected from the group of pigments and/or direct dyes.