PROBLEM TO BE SOLVED: To provide hair restorers having an excellent hair restoring effect.SOLUTION: The present invention provides a hair restorer having an excellent hair restoring effect as an external preparation containing chiro-inositol. The hair restorer is used for hair shaft growth promotion or hair growth, for increasing hair shaft-extension rate, for increasing the maximal length of a hair shaft, for increasing the diameter of a hair shaft, for increasing the number of hairs, for promoting the born of a new hair from a pore having stopped hair growth or degraded hair growth ability, for shortening telogen in hair cycle, and for restarting the stopped hair cycle, and the like.SELECTED DRAWING: Figure 1【課題】優れた育毛作用を有する育毛剤の提供。【解決手段】優れた育毛作用を有する、ｃｈｉｒｏ－イノシトールを含む外用剤である育毛剤。毛幹成長促進または発毛に用いるために、毛幹伸長速度を向上させるために、毛幹最大長を向上させるために、毛幹径を増大させるために、毛数を増加させるために、発毛が停止したまたは発毛能力が低下した毛穴から新しい毛が発毛することを促進するために、毛周期における休止期を短縮するために、及び停止した毛周期を再開させる等のために、使用する育毛剤。【選択図】図１
