Abstract: A cosmetic preparation in gel form is described which contains undissolved, water-swollen polymer particles and at the interface with gaseous substances forms reversibly a grainy, uneven, light-scattering surface and at the interface with solids forms reversibly a smooth, level, non-light-scattering surface. Preferred gel formers are superabsorbing polymers. A preferred use is the hair-end protection in permanent wave treatment.

Abstract: Cosmetic composition for the oxidative treatment of hair or skin, prepared by mixing of at least two components, in which dehydroascorbic acid or a dehydroascorbic acid salt or a dehydroascorbic acid derivative is generated from ascorbic acid, ascorbic acid derivative and ascorbic acid salt prior to application by an enzyme that catalyzes the enzymatical oxidation of said of ascorbic acid as well as a process for carrying out the oxidative treatment of keratin, particularly for the oxidative post-treatment of reduced hair in the process of permanent deformation of hair using said composition.

Abstract: Pro-dyes of direct dyes having an enzymatically-labile functionality, e.g. glutaramide derivatives of direct dyes of formula (I) or their physiologically acceptable salts, are described, as well as compositions for dyeing keratinous fibers containing these pro-dyes, as well as compositions for dyeing keratinous fibers containing a combination of at least one pro-dye and at least one enzyme capable of cleaving the glutaramide functionality in the pro-dye. A method for dyeing keratinous fibers with the aforementioned dyeing compositions is also described.

Abstract: A cosmetic preparation in gel form is described which contains undissolved, water-swollen polymer particles and at the interface with gaseous substances forms reversibly a grainy, uneven, light-scattering surface and at the interface with solids forms reversibly a smooth, level, non-light-scattering surface. Preferred gel formers are superabsorbing polymers. A preferred use is the hair-end protection in permanent wave treatment.

Abstract: The cosmetic agent contains from 0.01 to 10 percent by weight of at least one silane of formula RmSiX4-m, wherein m=0 to 4, R is a nonhydrolyzable organic group and X is a hydrolysable group, or a salt thereof. The method for improving the condition of hair, particularly in terms of protection, hardening, strengthening, sealing, restructuring, repairing, stabilizing, enhancing the luster, facilitating the combability and shortening the hair-drying time, includes bringing the aforesaid cosmetic agent into contact with the hair for a period of 10 seconds to 60 minutes at a temperature between 20° C. and 60° C.

Abstract: A cosmetic preparation in gel form is described which contains undissolved, water-swollen polymer particles and at the interface with gaseous substances forms reversibly a grainy, uneven, light-scattering surface and at the interface with solids forms reversibly a smooth, level, non-light-scattering surface. Preferred gel formers are superabsorbing polymers. A preferred use is the hair-end protection in permanent wave treatment.

Abstract: The handheld hair dryer for generating a heated air stream has a blower for generating an air stream, an electric heater for heating the air stream, a catalytic odor filter for deodorizing the air stream and a thermal radiator for heating the catalytic odor filter. The electric heater and the catalytic odor filter are separate from each other so that the active surface area of the catalytic odor filter can be maximized to deodorize the air stream. The thermal radiator is also separate from the electric heater.

Abstract: A method for providing a time-dependent decrease of pH in a cosmetic composition is described. A method of permanently shaping hair is also described, in which, immediately prior to use, an enzyme that catalyzes an acid-generating reaction with a non-ester substrate is added to an alkaline composition, which contains the non-ester substrate, to form a ready-to-apply cosmetic composition. Then the hair, before and/or after it is put in a desired shape, is treated with the ready-to-apply cosmetic composition and, after a period of action, is rinsed from the hair with water. Thereafter the hair is oxidatively treated, rinsed again with water, optionally put in a water wave and dried. Preferably the enzyme and the non-ester substrate are selected so that the initial pH decreases by at least 0.5 pH units within a time interval of from 5 to 40 minutes.

Abstract: Pro-dyes of direct dyes having an enzymatically-labile functionality, e.g.

Abstract: The invention relates to a hot air appliance (1.1) comprising an electric heating body (4) and a fan (9) for producing a hot air flow (28). The inventive hot air appliance (1.1) is provided with a catalytic odour filter (21) which is subjected to the airflow (27) from the fan.

Abstract: A process for manufacturing hair cosmetic or skin cosmetic products is described, in which the products contain a preparation with hair cosmetic or skin cosmetic ingredients and one process step includes conducting at least a part of the preparation through an apparatus with microstructured units. The apparatus with microstructured units can be one or more static micromixers and/or one or more microheat exchangers.

Abstract: The solid, form-stable gel for hair treatment contains an aqueous or aqueous-alcoholic base; from 0.5 to less than 2 percent by weight of a carrageenan or a mixture of carrageenans and at least one carrageenan-amount-reducing additive selected from the group consisting of hair fixing polymers, amphiphilic associative thickeners, monoalcohols with 1 to 5 carbon atoms and polyalcohols with 2 to 5 carbon atoms. The carrageenan or mixture of carrageenans and the at least one additive are contained in the gel in respective amounts so that the gel is solid and form-stable, i.e. has a resistance of at least 0.15 N to a compressive force applied at 2000 and 65% relative humidity by means of an 8 mm diameter cylindrical piston that is depressed at a rate of 0.5 mm/s until a compression depth of 1 mm is reached after which the piston is removed at a rate of 0.5 mm/s.

Abstract: A cosmetic preparation in gel form is described which contains undissolved, water-swollen polymer particles and at the interface with gaseous substances forms reversibly a grainy, uneven, light-scattering surface and at the interface with solids forms reversibly a smooth, level, non-light-scattering surface. Preferred gel formers are superabsorbing polymers. A preferred use is the hair-end protection in permanent wave treatment.

Abstract: The solid, form-stable gel for hair treatment contains an aqueous or aqueous-alcoholic base; from 0.5 to less than 2 percent by weight of a carrageenan or a mixture of carrageenans; at least one carrageenan-amount-reducing additive selected from the group consisting of hair fixing polymers, amphiphilic associative thickeners, monovalent alcohols having 1 to 5 carbon atoms, polyvalent alcohols having 2 to 5 carbon atoms and water-soluble salts that release calcium and/or potassium ions in aqueous media. The carrageenan or mixture of carrageenans and the at least one additive are contained in the gel in respective amounts so that the gel is solid and form-stable to a compressive force of at least 0.15 N applied at 20° C. and 65% relative humidity by means of a cylindrical piston that is depressed at a rate of 0.5 mm/s until a compression depth of 1 mm is reached after which the piston is removed at a rate of 0.5 mm/s.

Abstract: A hair treatment composition contains one or more polymers or copolymers, each of which is made from one or more monomers, in a cosmetic foundation. The respective monomers are selected from the group consisting of ethylenic unsaturated saccharides, ethylenic unsaturated saccharic acids, derivatives of ethylenic unsaturated saccharides and derivatives of ethylenic unsaturated saccharic acids. The unsaturated sachharides and saccharic acids are present in cyclic or open chain form.