Abstract: A method and a device for determining a degree of thermal hair damage are provided. A method for determining a degree of thermal hair damage includes, during exposure of a hair sample of hair to UV or UV/VIS light, recording a spectrum of at least a portion of the UV or UV/VIS light that has interacted with the hair sample. Further, the method includes comparing at least a portion of the spectrum with a spectroscopic calibration model obtained using UV or UV/VIS spectra and degrees of thermal damage of a plurality of calibration hair samples. Also, the method includes determining the degree of thermal hair damage by using the comparison.

Abstract: A multi-component packaging unit (kit-of-parts) for the reductive decolorization of dyed keratinic fibers, which unit includes, packaged separately from one another, a container (A) containing a solid or powdered cosmetic agent (a) and a container (B) containing an aqueous cosmetic agent (b), wherein the agent (a) in container (A) (a1) includes one or more sulfinic acid derivatives from a specific group and the agents (a) and (b) are substantially free from metal salts. Also, a method for the reductive decolorization of dyed keratinic fibers with use of the multi-component packaging unit.

Abstract: In various exemplary embodiments, a device for determining the gloss value of hair is provided. The device includes a light source for illuminating at least one hair with light, where the at least one hair is arranged to extend along a cylinder section-like carrier in such a way that a plurality of adjacent hair sections is arranged essentially perpendicular to a cylinder axis. The device further includes a portable camera for capturing a digital image of the at least one hair during illumination and a portable electronic data processing device for determining a gloss value of the hair based on the digital image.

Abstract: Products for oxidative dyeing of keratin fibres include at least two preparations (A) and (B) prepared separately. The first preparation (A) includes, in a cosmetic carrier (A1) hydrogen peroxide and (A2) one or more fatty constituents in an amount of from about 0.1 to about 40 wt. % relative to the weight of preparation (A). The second preparation (B) includes, in a cosmetic carrier, (B1) at least one alkalizing agent and (B2) one or more fatty constituents in an amount of from about 0.1 to about 40 wt. % relative to the weight of preparation (B). Preparation (A) is prepared in a first container and preparation (B) is prepared in a second container, both of which containers include at least two layers. An inner layer of first and/or second containers includes a layer of a synthetic polymer (I). An outer layer of first and/or second containers includes a layer of metal.

Abstract: The present disclosure relates to a cosmetic product for changing the natural color of keratinic fibers, in particular human hair, which contains at least one package (VP) and a cosmetic composition (KM) located in this package (VP). The package is made of a multi-layer film (F) which contains at least two polymer layers (P1) and (P2) and at least one barrier layer (BS). The cosmetic composition comprises at least one oxidizing agent, at least one C8-C30 alcohol, at least one anionic surfactant, at least one nonionic surfactant and at least one complexing compound. The use of the package (VP) in combination with the cosmetic composition (KM) surprisingly does not lead to a swelling of the package or excessive water loss of the agent (KM) during storage.

Abstract: The present disclosure concerns a cosmetic product for changing the natural colour of keratinous fibres, in particular human hair, which contains at least one package (VP) as well as a cosmetic composition (KM) contained in this package (VP). The package is formed from a multilayer foil (F) which contains at least two polymer layers (P1) and (P2) as well as at least one barrier layer (BS). The cosmetic composition comprises at least one oxidizing agent, at least one C8-C30 alcohol, at least one special anionic surfactant as well as at least one non-ionic surfactant. Using the package (VP) in combination with the cosmetic composition (KM) surprisingly does not result in expansion of the package or excess loss of water from the medium (KM) during storage.

Abstract: The present disclosure relates to a cosmetic product for changing the natural color of keratin fibres, in particular human hair, which contains at least one packaging (VP) and a cosmetic composition (KM) found in said packaging (VP). The packaging is made of a multi-layered film (F) which contains at least two polymer layers (P1) and (P2) and at least one barrier layer (BS). The cosmetic composition comprises at least one oxidizing agent, at least one C8-C30 alcohol, at least one anionic surfactant, and at least two non-ionic surfactants different from one another, and at least one branched carboxylic acid ester. The use of the packaging (VP) in combination with the cosmetic composition (KM) surprisingly does not lead to an expansion of the packaging or an excessive loss of water from the agent (KM) during storage.

Abstract: The present disclosure relates to cosmetic agents for the reductive decoloration of colored keratinous fibers, more particularly human hair, containing a sulphinic acid derivative and at least one alcohol with from about 10 to about 30 carbon atoms. This combination is able to reduce the unpleasant odor during the decoloration process. The present disclosure also relates to a corresponding kit-of-parts, the use of cosmetic agents and the kit-of-parts, as well as to an application method using the cosmetic agents and the packaging unit.

Abstract: A combination of at least one select dicarboxylic acid having 2 to 10 carbon atoms, in combination with at least one amino acid, selected from arginine, lysine, histidine or at least one of the salts of these amino acids, are included in a blonding powder to reduce the damage caused to keratin fibers by an oxidative bleaching treatment.

Abstract: A combination of at least one selected dicarboxylic acid having 2 to 10 carbon atoms, in combination with at least one amino acid, selected from arginine, lysine, histidine or at least one of the salts of these amino acids, form a bleaching paste in order to reduce the damage to keratinic fibres caused by an oxidative bleaching treatment.

Abstract: A method is described for determining a degree of damage to hair, which includes: registering light which is radiated by the hair sample while a hair sample is illuminated with light; based on the registered light, determining first regions of the hair sample which reflect the light with higher interference, and second regions of the hair sample which reflect the light with lower interference; and determining a degree of damage to the hair sample based on the extents of the first regions and of the second regions.

Abstract: Bleaching agents with improved resistance to oil separation and better miscibility with dye-containing formulations comprise—in relation to their weight—from about 0.015 to about 10 wt.-% ethylene octene copolymer(s), from about 5 to about 70 wt.-% oil component(s), from about 1 to about 70 wt.-% peroxydisulfate(s) chosen from the group of sodium peroxodisulfate and/or potassium peroxodisulfate and/or ammonium peroxodisulfate, and ?1 wt.-% free water.

Abstract: In various exemplary embodiments a method for determining the waviness index of hair is provided. The method may comprise the steps of determining and/or establishing at least one hair examination region in at least one digital image, in which hair is depicted, determining a plurality of different brightness values in the hair examination region, and determining the waviness index of hair on the basis of the plurality of brightness values.

Abstract: Agents for lightening keratin fibers include, relative to their weight, 20 to 75 wt.-% oil(s), 0.05 to 5 wt.-% xanthan, 1 to 70 wt.-% peroxodisulfate(s) and 1 to 15 wt.-% cetearyl alcohol. The agents have increased storage stability, not only the physical stability (settling, phase separation) but also the chemical stability (degradation of the persalts) thereof being improved.

Abstract: The present disclosure relates to an agent (A) for changing the colour of keratin fibres, in particular human hair, which agent comprises unilamellar vesicles (ULV) and/or multilamellar vesicles (MLV) in an aqueous medium, wherein the agent contains at least one C8-C30 fatty alcohol (a1), at least one ethoxylated fatty alcohol (a2), at least one anionic surfactant of the type of (optionally ethoxylated) fatty alcohol sulfates (a3), and one or more colour-changing salts (a4) from the group of sulfates, hydrogen sulfates, chlorides, and/or bromides in a total amount of from about 0.3 to about 6.0% by weight. The present disclosure further relates to a multi-component packaging unit, in which the aforementioned agent (A) is formulated separate from an oxidant preparation (B). The present disclosure further relates to a method for producing the agent (A).

Abstract: In various exemplary embodiments, a device for determining the gloss value of hair is provided. The device includes a light source for illuminating at least one hair with light, where the at least one hair is arranged to extend along a cylinder section-like carrier in such a way that a plurality of adjacent hair sections is arranged essentially perpendicular to a cylinder axis. The device further includes a portable camera for capturing a digital image of the at least one hair during illumination and a portable electronic data processing device for determining a gloss value of the hair based on the digital image.

Abstract: A method and a device for determining a degree of thermal hair damage are provided. A method for determining a degree of thermal hair damage includes, during exposure of a hair sample of hair to UV or UV/VIS light, recording a spectrum of at least a portion of the UV or UV/VIS light that has interacted with the hair sample. Further, the method includes comparing at least a portion of the spectrum with a spectroscopic calibration model obtained using UV or UV/VIS spectra and degrees of thermal damage of a plurality of calibration hair samples. Also, the method includes determining the degree of thermal hair damage by using the comparison.

Abstract: A composition for dyeing keratinous fibres comprises, in an aqueous carrier, (a) highly ethoxylated C16-C18 fatty alcohol(s) with from about 30 to about 100 ethoxy groups, (b) low-ethoxylated C16-C18 fatty alcohol(s) with 1 to 5 ethoxy groups, (c) optionally monoester(s) of glycerol and a C14-C20 fatty acid, (d) C16-C18 fatty alcohol(s), (e) alkalising agent(s), and (f) oxidation dye precursor(s), wherein—the weight ratio of all highly ethoxylated C16-C18 fatty alcohols (a) to all low-ethoxylated C16-C18 fatty alcohols (b) is from about 10 to about 20, and the weight ratio of the sum of all constituents [(c)+(d)] to the sum of all ethoxylated fatty alcohols [(a)+(b)] is from about 2 to about 5. The present disclosure further relates to a multi-component packaging unit, in which the aforementioned composition is packaged separately from an oxidant preparation.

Abstract: A multi-component packaging unit (kit of parts) for reductively decoloring dyed keratin fibers, includes (I) a container (A) containing a cosmetic agent (a) and (II) a container (B) containing a cosmetic agent (b) and (III) a container (C) containing an aqueous, cosmetic agent (c) produced separately from each other, wherein agent (a) in container (A) includes a reductant (a1) as defined herein and agent (c) in container (C) includes (c1) one or more compounds of formula (I), A method for reductively decoloring dyed keratin fibers includes using the multi-component packaging unit.

Abstract: Cosmetic agents for treating keratinic fibers and methods for the reductive decolorization of dyed keratinic fibers are provided herein. In an embodiment, a cosmetic agent for treating keratinic fibers includes (a) one or more metal salts chosen from the group of tin(II) salts, iron(II) salts, manganese(II) salts, titanium(II) salts, or titanium(III) salts and (b) water. The agent has a pH between about 1.0 and about 3.0.