Abstract: The first agent for hair modification is appliable on hair in a reduction step for a hair modification treatment method including a reduction step; and a heating step of bringing the hair obtainable after the reduction step into contact with a heating element set at a temperature of 70° C. or higher, the first agent including a reducing agent and N-acetylglucosamine. The hair modification treatment method includes a reduction step of applying, on hair, a first agent for hair modification including a reducing agent and N-acetylglucosamine; and a heating step of bringing the hair obtainable after the reduction step into contact with a heating element set at a temperature of 70° C. or higher.

Abstract: A hair treatment agent in which penetrability of a modified peptide into the internal structure of the hair can be enhanced even under the conditions of acidic pH, and a method for causing a modified peptide to penetrate into the hair, are provided. Disclosed is a hair treatment agent at a pH of from 3.5 to 5.

Abstract: An object of the present invention is to provide a hair styling composition formulated to make hair styling easy and to add wet-look shine to hair. The hair styling composition which achieves the above object contains (A) a thickener, (B) a hair fixative polymer and/or a liquid oil, (C) a wax particle dispersion, and (D) water. In the hair styling composition of the present invention, the wax particle dispersion (C) is preferably an Euphorbia Cerifera (Candelilla) wax particle dispersion or a beeswax particle dispersion, or preferably contains wax, at least one nonionic surfactant selected from the group consisting of polyoxyethylene cetyl ether and polyoxyethylene polyoxypropylene cetyl ether, and water.

Abstract: The present invention aims to provide a reducing agent for straightening curly hair that can deal with various kinds of hair damage and various degrees of curling and a process for straightening curly hair, which does not cause breaking and insufficient straightening of curly hair. Specifically, the present invention relates to reducing agent for straightening curly hair comprising (A) ammonium thioglycolate and/or monoethanol amine thioglycolate, (B) at least one cysteine selected from the group consisting of L-cysteine, DL-cysteine, N-acetyl-L-cysteine, L-cysteine monohydrochloride and DL-cysteine monohydrochloride, (C) monoethanol amine and (D) ammonium hydrogen carbonate and/or ammonia; wherein the weight ratio of (C)/(D) is 1 to 15.

Abstract: The present invention provides a hair treating agent that is applied after applying a reducing agent for straightening curly hair in straightening treatment of curly hair and uniformly softens hair without damaging. Specifically, the present invention relates to a hair treating agent that is applied after applying a reducing agent for straightening curly hair to end reducing reaction and enables visual observation of the ending of the reaction, comprising a pH buffer and an oxyacid metal salt.

Abstract: The present invention aims to provide a reducing agent for straightening curly hair that can deal with various kinds of hair damage and various degrees of curling and a process for straightening curly hair, which does not cause breaking and insufficient straightening of curly hair. Specifically, the present invention relates to reducing agent for straightening curly hair comprising (A) ammonium thioglycolate and/or monoethanol amine thioglycolate, (B) at least one cysteine selected from the group consisting of L-cysteine, DL-cysteine, N-acetyl-L-cysteine, L-cysteine monohydrochloride and DL-cysteine monohydrochloride, (C) monoethanol amine and (D) ammonium hydrogen carbonate and/or ammonia; wherein the weight ratio of (C)/(D) is 1 to 15.

Abstract: The present invention provides a treating method having a good continuity of the reform effects of the hair, and which is also excellent in safety. In the method, a hair inside repair agent including at least water and a component to repair an inside of the hair is applied as a step (A). A nonaqueous pretreatment agent including at least a methyl hydrogenpolysiloxane, a polyoxyethylene polyoxypropylene alkylether, and an acid is applied to the hair as step (B). A hair coating agent including at least an amino functional silicone is applied to the hair as step (C).

Abstract: A hair styling iron A is provided comprising: a body 1 which includes a grip portion 4, a plate portion 6 including a heater H and a plate 8, and a fulcrum portion 5; and a sandwiching member 2 which includes a lever portion 15 opposed to said grip portion 4, a plate portion 17 equipped with a heater H and a plate 18 and opposed to the plate portion 6 of the body 1, and a fulcrum portion 16 located between the lever portion 15 and the plate portion 17 and pivotally supported by the fulcrum portion 16 of the body 1. Between the rearward portions of the fulcrum portions of the body 1 and the sandwiching member 2 is interposed a spring 12 which biases the plate portions 6 and 17 normally in the direction away from each other. Each of the plate portions 6 and 17 is provided with ridges 14 along the perimeter, and has been subjected to a flocking treatment from its perimeter to the outer surface.