A layered solid agent 100a, which is a hydrogen supply material 200 of the present invention, includes silicon fine particles or aggregates thereof having hydrogen generating ability and a physiologically acceptable medium 90b in contact with the silicon fine particles or aggregates thereof.In addition, the hydrogen supply material 200 is a hydrogen supply material for bringing the hydrogen into contact with the skin and/or mucous membrane via the medium 90b.作為本發明之氫供給材料200之層狀固形劑100a具備有：具有氫生成能之矽微粒或其凝聚體；及與該矽微粒或其凝聚體接觸之生理學上可接受之介質90b。此外，此氫供給材料200係經由介質90b使上述氫接觸皮膚及/或黏膜之氫供給材料。
