To promote hair growth by promoting secretion of PDGF.SOLUTION: There is provided a hair growth promotion tool 100 for massaging a scalp. The hair growth promotion tool 100 includes: a bristle bundle 110 for massaging a scalp； a bristle bundle fixing part 120 for fixing the bristle bundle 110； and a finger insertion part 130 to which the bristle bundle fixing part 120 is fitted and into which a finger of a wearer can be inserted.SELECTED DRAWING: Figure 3【課題】ＰＤＧＦの分泌を促し、育毛を促進させること。【解決手段】頭皮をマッサージする育毛促進器１００であって、頭皮をマッサージする毛束１１０と、前記毛束１１０を固定する毛束固定部１２０と、前記毛束固定部１２０が取り付けられ、着用者の指が挿入可能な指挿入部１３０と、を含む育毛促進器１００を提供する。【選択図】図３
