To provide a ceramide-containing external agent composition that has an improved barrier performance. The invention relates to an external agent composition comprising type I ceramide, type II ceramide, type III ceramide, and phytosterol. The formulation amount of type I ceramide is preferably 0.002 to 300 parts by weight per 100 parts by weight of type II ceramide.本發明係提供一種經提高屏障功能之含神經醯胺之外用劑組成物。本發明係有關含I型神經醯胺、II型神經醯胺、Ⅲ型神經醯胺、以及植物固醇之外用劑組成物。I型神經醯胺之摻混量相對於100重量份之II型神經醯胺,以0.002~300重量份為佳。