PROBLEM TO BE SOLVED: To provide an oral formulation as a hair restorer which is easier to apply than an external formulation, because the external formulation requires time and effort; and to provide a hair restorer having a higher hair restoration effect as a hair restorer for external use.SOLUTION: The invention provides an oral hair restorer containing 5,3',4'-trihydroxy-7-methoxy flavanone (THMF) represented by the following formula; and a hair restoration kit comprising the oral hair restorer and a hair restorer for external use. THMF is a yerba santa extract from Eriodictyon angustifolium, and the oral hair restorer contains at least 200 ppm of THMF.SELECTED DRAWING: Figure 1【課題】育毛剤において、外用剤は塗布する手間がかかるため、より適用しやすい剤型として経口用製剤及び外用剤としての育毛剤として、より高い育毛効果を有する育毛剤の提供。【解決手段】下式で表される5,3’,4’-トリヒドロキシ-7-メトキシフラバノン(THMF)を含有する経口用育毛剤、また、当該経口用育毛剤、及び、外用育毛剤を含む育毛キット。THMFはエリオディクティオン・アングスティフォリウム種のヤーバサンタの抽出物で、THMFを200ppm以上含む経口育毛剤。【選択図】図1