PROBLEM TO BE SOLVED: To provide a composition to treat skin aging comprising a peptide having a specific sequence linked to oleanolic acid and a component originated from a specific plant or a plant extract.SOLUTION: According to the present invention, there is provided a pharmaceutical composition for treating skin aging. The composition comprises a pentapeptide compound having a specific sequence linked to oleanolic acid, which is represented by the following formula. The composition further comprises coconut liquid endosperm, Amla extract, stilbene or a derivative thereof, tetrahydrocurcuminoid or a derivative thereof, Licorice extract, and a combination thereof, or a plant extract.SELECTED DRAWING: None【課題】オレアノール酸と結合した特定配列を有するペプチドと特定の植物由来成分又は植物抽出物とを含む、皮膚の加齢を治療するための組成物の提供。【解決手段】下式によって表されるオレアノール酸と結合した特定配列のペンタペプチド化合物を含み、更に、ココナッツ液状内乳、アムラ抽出物、スチルベン又はその誘導体、テトラヒドロクルクミノイド又はその誘導体、カンゾウ抽出物及びそれらの組合せからなる群から選択される成分又は植物抽出物を含む、皮膚の加齢を治療するための医薬組成物。【選択図】なし