PROBLEM TO BE SOLVED: To provide a collagen gel shrinkage promoter, a skin elasticity improving agent, a skin sagging preventing or improving agent, and a skin aging preventing or improving agent.SOLUTION: This invention provides a collagen gel shrinkage promoter, a skin elasticity improving agent, a skin sagging preventing or improving agent, and a skin aging preventing or improving agent which include 1-kestose as an active ingredient.COPYRIGHT: (C)2014,JPO&INPIT【課題】 コラーゲンゲル収縮促進剤、皮膚弾力性改善剤、皮膚のタルミ予防又は改善剤、皮膚老化予防又は改善剤の提供。【解決手段】1-ケストースを有効成分とするコラーゲンゲル収縮促進剤、皮膚弾力性改善剤、皮膚のタルミ予防又は改善剤、皮膚老化予防又は改善剤。【選択図】なし
