To provide an external preparation containing minoxidil, wherein, skin permeability of minoxidil is improved, and it shows a skin permeability promoting effect such as improved and/or enhanced skin permeation.SOLUTION: The minoxidil-containing external preparation has minoxidil, a solvent in which minoxidil can be dissolved, and lauromacrogol that can be dissolved in the solvent, wherein the minoxidil and lauromacrogol are dissolved in the solvent.SELECTED DRAWING: None【課題】ミノキシジルを含有する外用剤において、ミノキシジルの皮膚浸透性を高め、皮膚浸透の改善及び/又は皮膚浸透の促進等の皮膚浸透性促進効果を奏するミノキシジル含有外用剤を提供する。【解決手段】ミノキシジルと、ミノキシジルを溶解可能な溶媒と、前記溶媒に溶解可能なラウロマクロゴールと、を含有し、ミノキシジルとラウロマクロゴールとが前記溶媒に溶解されてなる、ミノキシジル含有外用剤。【選択図】なし