PROBLEM TO BE SOLVED: To provide a hair friction reduction agent and hair wettability applying agent which can add smoothness and moist feelings to the hair and have a high level of safety.SOLUTION: A hair friction reduction agent comprises mannosyl erythritol lipid having a D-mannopyranosyl-meso-erythritol structure.COPYRIGHT: (C)2015,JPO&INPIT【課題】毛髪の滑らかさ、しっとり感の付与を付与することができ、かつ安全性の高い毛髪摩擦軽減剤、毛髪湿潤性付与剤を提供する。【解決手段】D-マンノピラノシル-meso-エリスリトール構造を有するマンノシルエリスリトールリピッドを含む毛髪摩擦軽減剤。【選択図】なし