A ceramide production enhancer and a moisturizer containing, as an active ingredient, an extract of at least one plant selected from the group consisting of Chenopodium hybridum, Melia toosendan, Indigofera tinctoria, Cirsium japonicum, Catalpa ovata, and Tagetes erecta, or a compound represented by the following Formula (1): wherein, R represents an acyl group having 1 to 5 carbon atom(s).本發明提供一種神經醯胺產生促進劑及保濕劑，其含有選自由雜配藜(Chenopodium hybridum)、川楝(Melia toosendan)、木藍(Indigofera tinctoria)、薊(Cirsium japonicum)、梓(Catalpa ovata)及萬壽菊(Tagetes erecta)所組成之群中之至少1種植物的萃取物、或下述通式(1)所表示之化合物作為有效成分：(式中，R表示碳數1~5之醯基)。
