PROBLEM TO BE SOLVED: To provide a hydrogen supply material and a production method therefor, and a hydrogen supply method, which enable a sufficient amount of hydrogen to be easily be taken in the body for eliminating hydroxyl radicals in the body in life scenes.SOLUTION: A hydrogen supply material includes silicon fine particles, or aggregates thereof, having a capability of generating hydrogen, and a physiologically acceptable medium in contact with the silicon fine particles or aggregates. The hydrogen supply material is for bringing the hydrogen into contact with skin and/or a mucous membrane through the medium.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】生活場面において、体内のヒドロキシルラジカルを消滅するために十分な量の水素をその体内に取り込み易くする水素供給材及びその製造方法、並びに水素供給方法の提供。【解決手段】水素の発生能を有するシリコン微細粒子又はその凝集体と、生理学的に許容可能な、該シリコン微細粒子又は前記凝集体に接する媒体と、を備える、前記媒体を経由して前記水素を皮膚及び／又は粘膜に接触させるための、水素供給材。【選択図】図１
