A method of protecting the internal protein of hair from damage by ultraviolet light, comprising the step of applying, to the hair, a hair treatment composition comprising a lactone, a disaccharide, an inorganic salt and an organic acid or salt thereof, having a pH in the range of from 3 to 6.5 prior to the application of an ultraviolet light to the hair, and a use of such a hair treatment composition, in the treatment of hair, to protect hair from damage by ultraviolet light.

A method of protecting the internal protein of hair from damage by ultraviolet light, comprising the step of applying, to the hair, a hair treatment composition comprising a lactone, a disaccharide, an inorganic salt and an organic acid or salt thereof, having a pH in the range of from 3 to 6.5 prior to the application of an ultraviolet light to the hair, and a use of such a hair treatment composition, in the treatment of hair, to protect hair from damage by ultraviolet light.

A cosmetic composition including the following components (A) to (C), (A) a silicone film-forming agent, (B) a high-molecular-weight organopolysiloxane, (C) an organopolysiloxane having a polyalkylene oxide moiety and a cationic group, other than the component (A) and the component (B). The cosmetic composition is a hair dye composition or a hair cosmetic composition.

A cosmetic composition including the following components (A) to (C), (A) a silicone film-forming agent, (B) a high-molecular-weight organopolysiloxane, (C) an organopolysiloxane having a polyalkylene oxide moiety and a cationic group, other than the component (A) and the component (B). The cosmetic composition is a hair dye composition or a hair cosmetic composition.

Diffuser device for cosmetic liquids for hair dryers, characterized in that it comprises a cylindrical barrel, which can be associated with the blowing part of a hair dryer; said cylindrical barrel housing a diaphragm comprising a transverse septum which has a central expansion and lateral lobes; said lateral lobes defining respective lateral passages; said lateral passages and said transverse septum causing the air produced by said blowing part to pass in the form of two flows channeled to the exit of said device with laminar motion. The device makes passage of the air that passes through it more uniform in pressure and temperature, and at the same time enables cosmetic products to be dispensed for hair treatment.

Diffuser device for cosmetic liquids for hair dryers, characterized in that it comprises a cylindrical barrel, which can be associated with the blowing part of a hair dryer; said cylindrical barrel housing a diaphragm comprising a transverse septum which has a central expansion and lateral lobes; said lateral lobes defining respective lateral passages; said lateral passages and said transverse septum causing the air produced by said blowing part to pass in the form of two flows channeled to the exit of said device with laminar motion. The device makes passage of the air that passes through it more uniform in pressure and temperature, and at the same time enables cosmetic products to be dispensed for hair treatment.

Hair treatment compositions and methods of using them to treat hair are described. The hair treatment compositions include: (a) citric acid, one or more salts of citric acid, or a combination thereof; or a combination of citric acid and one or more salts of citric acid, wherein the weight ratio of citric acid to salts of citric acid added to form the combination is from 1:10 to 10:1; (b) one or more surfactants; and (c) water; wherein the pH of the composition is from about 3 to about 10; and weight percentages are based on the total weight of the composition. The hair treatment compositions are particularly useful for strengthening hair fibers.

The disclosure relates to compositions for treating keratin materials. The compositions comprise (a) at least one amphoteric surfactant; (b) at least one anionic surfactant system comprising (i) at least one acyl taurate, (ii) at least one acyl isethionate, and (iii) at least one additional anionic surfactant; (c) at least one nonionic surfactant chosen from alkyl(poly)glycosides; (d) optionally, at least one cationic compound; and (e) sodium chloride, wherein the weight ratio of the (b) at least one anionic surfactant system to (e) sodium chloride ranges from about 5:1 to about 15:1. The disclosure also relates to methods of using the compositions.

Provided is a composition for the treatment of keratin fibers, for example human keratin fibers such as the hair, comprising, in a cosmetically acceptable medium, at least one cationic polymer; at least one fatty amide; at least one anti-oxygen agent; and at least one oxidizing agent; wherein the pH of the composition ranges from 1.5 to 4.5. Also provided is a composition for the treatment of keratin fibers, comprising, in a cosmetically acceptable medium, at least one cationic polymer; at least one fatty amide; at least one anti-oxygen agent; and at least one oxidizing agent; wherein the pH of the composition is alkaline. Also provided is a method for treating keratin fibers, comprising applying, to the keratin fibers, at least one oxidizing composition described herein.

Suggested is a composition with stabilized taste and/or odor, comprising (a) at least one acetophenone derivative of formula (I) wherein R.sub.1 stands for hydrogen or methyl, and R.sub.2 stands for hydrogen, hydroxyl or a —OCH.sub.3 group, or a cosmetically pharmaceutically acceptable salt thereof, and (b) at least one mono- or polyunsaturated C.sub.8-C.sub.22 fatty acid or its monohydric polyhydric C.sub.1-C.sub.18 alkyl alcohols ester. ##STR00001##