Crystal is difficult to precipitate even under low temperature, in addition the formulation whose also stability is high, blendings minokishijiru to high concentration offers. 10 - 50 mass % the water and 3 mass % regarding to the formulation which blendings minokishijiru above, the polyatomic alcohol of 1 genera or more 8 - 30% is contained, pH 5.5 - 6.5 crystal is difficult to precipitate the hair fostering constituent which is, it is something whose stability is high.低温下でも結晶が析出しにくく、また安定性も高い、ミノキシジルを高濃度に配合する製剤を提供する。10~50質量%の水及び3質量%以上のミノキシジルを配合した製剤に於いて、1種以上の多価アルコールを8~30%を含有し、pHが5.5~6.5である育毛組成物は結晶が析出しにくく、安定性の高いものである。