PROBLEM TO BE SOLVED: To provide a technique to allow the percutaneous absorption of a water-soluble polymer.SOLUTION: A gel composition contains (a) lecithin, (b) an oil component, (c) a polar material, and (d) a water-soluble molecule with a molecular weight of 500 or more.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】水溶性高分子の経皮吸収が可能な技術を提供する。【解決手段】(a)レシチンと、(b)オイル成分と、(c)極性物質と、(d)分子量500以上の水溶性分子とを含む、ゲル状組成物。【選択図】なし