PROBLEM TO BE SOLVED: To provide a hair cosmetic preventing and ameliorating damage of the hair such as split hair and hair breakage, and imparting excellent moist feeling, smoothness and goodness of settling.SOLUTION: The hair cosmetic contains (a) a hair repairing agent, (b) a penetration promotor and (c) one or more kinds of compounds selected from an aromatic carboxylic acid, an aromatic carboxylic acid salt, 3-isothiazolone and a 3-isothiazolone derivative.COPYRIGHT: (C)2007,JPO&INPIT【課題】 枝毛、切れ毛等の毛髪の損傷を防止、修復し、優れたうるおい感、なめらかさ、まとまりの良さを付与する毛髪化粧料を提供する。【解決手段】 (a)毛髪補修剤、(b)浸透促進剤、(c)芳香族カルボン酸及び芳香族カルボン酸塩、ならびに3-イソチアゾロン及び3-イソチアゾロン誘導体から選ばれる1種又は2種以上の化合物を含有する毛髪化粧料。【選択図】 なし