A two-part oxidative dyeing composition is described. The two-part composition has an alkaline first part comprising oxidative dye couplers and/or oxidative dye precursors, and a second part comprising hydrogen peroxide, xanthine and/or its derivatives, and a lipophilic compound. The second part is formulated as water-in-oil emulsion and it was unexpectedly found that xanthines stabilize the viscosity of the second part composition allowing for improved dyeing performance.

Processes and a multi-component packaging unit (kit-of-parts) are provided for decolorizing keratinous material which has been colored by the application of at least one pigment. A process includes applying to the keratinous material a decolorizing agent comprising at least one anionic surfactant, and having a pH value of 1.0 to 3.5, and rinsing the decolorization agent from the keratinous material after a contact time.

Processes and a multi-component packaging unit (kit-of-parts) are provided for decolorizing keratinous material which has been colored by the application of at least one pigment. A process includes applying to the keratinous material a decolorizing agent comprising at least one anionic surfactant, and having a pH value of 1.0 to 3.5, and rinsing the decolorization agent from the keratinous material after a contact time.

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 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 present disclosure relates to cosmetic compositions for the oxidative treatment of keratinous fibers, in particular human hair, comprising at least one salt of a peroxo compound, at least one alkalizing agent and at least one complexing agent. Furthermore, it is an object of the present disclosure to provide a multi-component unit for the oxidative lightening of keratinous fibers, in particular human hair, comprising as first component the cosmetic agent as contemplated herein and as second component an agent comprising H.sub.2O.sub.2. In addition, the present disclosure relates to the use of a salt of a polyhydroxylated monocarboxylic acid in a cosmetic composition.

The present disclosure relates to cosmetic compositions for the oxidative treatment of keratinous fibers, in particular human hair, comprising at least one salt of a peroxo compound, at least one alkalizing agent and at least one complexing agent. Furthermore, it is an object of the present disclosure to provide a multi-component unit for the oxidative lightening of keratinous fibers, in particular human hair, comprising as first component the cosmetic agent as contemplated herein and as second component an agent comprising H.sub.2O.sub.2. In addition, the present disclosure relates to the use of a salt of a polyhydroxylated monocarboxylic acid in a cosmetic composition.