PROBLEM TO BE SOLVED: To provide a composition for enhancing human hair including eyelashes.SOLUTION: A composition comprises a compound represented by the formula (I) or a salt thereof. (The dashed bonds represent a single or double bond R and R are each independently H, a C1-C6 straight or branched chain alkyl that may be substituted X is H, halogen or a halogen containing group and y is 0 or 1 and x is 0 or 1, provided that x and y are not both 1 or not both 0.)SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】まつ毛を含むヒトの毛を増強するための組成物の提供。【解決手段】式(I)で表される化合物又はその塩を含む組成物。(破線の結合は、単結合又は二重結合;R及びR’は各々独立にH、置換可C1~C6直鎖又は分枝鎖アルキル;XはH、ハロゲン又はハロゲン含有基;yは0又は1;xは0又は1であり;x及びyは両方が1ではないか或いは両方が0ではない。)【選択図】なし