PROBLEM TO BE SOLVED: To provide a new epidermal cell proliferation promoter, and a new production promoter for type I collagen or hyaluronic acid.SOLUTION: The present invention provides a new epidermal cell proliferation promoter and a new production promoter for type I collagen or hyaluronic acid containing extract from an ostrich fern as active ingredient.SELECTED DRAWING: None【課題】新たな表皮細胞増殖促進剤、I型コラーゲン又はヒアルロン酸の産生促進剤の提供。【解決手段】コゴミ抽出物を有効成分とする新たな表皮細胞増殖促進剤、I型コラーゲン又はヒアルロン酸の産生促進剤。【選択図】なし