PROBLEM TO BE SOLVED: To provide a novel low-molecular-weight conditioning component which imparts suppleness/stiffness, smoothness, and easiness of sliding or a part thereof to the hair.SOLUTION: The invention provides a hair treatment agent which can impart suppleness/stiffness, smoothness, and easiness of sliding or a part thereof to the hair by adding a solvent or an additive to galactosyl glycerol with high affinity to the hair to make it solution or colloid, and then by spraying, applying, or rinsing with water after applying to the hair.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】毛髪にハリ・コシ、なめらかさ、すべり易さ、又はその一部を付与する新たな低分子量のコンディショニング成分を提供する。【解決手段】毛髪に親和性の高いガラクトシルグリセロールに、溶剤や添加剤を加えて溶液やコロイドの状態とし、毛髪に噴霧、又は塗布、又は塗布後水ですすいで、毛髪にハリ・コシ、なめらかさ、すべり易さ、又はその一部を付与できる、毛髪処理剤とする。【選択図】図2