PROBLEM TO BE SOLVED: To provide a composition for external use on the skin in which a decrease in viscosity with time caused by a high concentration of nicotinamide and a water-soluble polysaccharide is suppressed. SOLUTION: A composition for external use on the skin is prepared, which contains (A) a water-soluble polysaccharide, (B) nicotinamide in an amount of 3% by mass or more, and (C) an amphipathic component. [Selection diagram] None【課題】高濃度のニコチン酸アミドと水溶性多糖類によって引き起こされる経時的な粘度低下が抑制された皮膚外用組成物を提供することを目的とする。【解決手段】（Ａ）水溶性多糖類、（Ｂ）ニコチン酸アミド３質量％以上、及び（Ｃ）両親媒性成分を含有する、皮膚外用組成物を調製する。【選択図】なし
