An oral composition for maintaining or improving a skin barrier function, characterized by containing taurine as an active ingredient; or an oral composition for preventing or ameliorating age-related wrinkling, characterized by containing taurine as an active ingredient.本發明係關於以含有牛磺酸作為有效成分為特徵之用以維持或改善皮膚屏障功能之經口用組成物、或以含有牛磺酸作為有效成分為特徵之用以預防或改善老化造成之皺紋之經口用組成物。