PROBLEM TO BE SOLVED: To provide a protease activity-promoting agent as a raw material of functionality for beauty and health.SOLUTION: The invention provides a protease activity-promoting agent containing, as an active ingredient, humic soil extract obtained by extracting with an aqueous solvent. When dissolving or suspending the humic soil extract into water so that the solid concentration is 0.5 mass%, the protease activity-promoting agent contains 100 mg/L or more of humin, and 0.1-100 mg/L, preferably 1-50 mg/L, further preferably 5-50 mg/L of fulvic acid.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】美容・健康のための機能性の素材としてプロテアーゼ活性促進剤の提供。【解決手段】水系溶媒で抽出して得られる腐植土抽出物を有効成分とするプロテアーゼ活性促進剤。腐植土抽出物を固形分濃度が0.5質量%となるように水に溶解または懸濁したときに、フミン質を100mg/L以上含有し、フルボ酸を0.1~100mg/L、好ましくは1~50mg/L、さらに好ましくは5~50mg/L含有するプロテアーゼ活性促進剤。【選択図】なし