PROBLEM TO BE SOLVED: To provide a deodorant composition having improved deodorizing performance on sweat odors, aldehydes and the like, and a deodorizing method for reducing odors.SOLUTION: A deodorant composition at least has water, and a polyhydroxyamine compound represented by the formula (1) and/or salt thereof (a) by 0.2% or more based on the water mass of 100 mass%, and the deodorant composition is attached on an application target to reduce the odor of the target.SELECTED DRAWING: None【課題】汗臭やアルデヒド類等に対する消臭性能を改良した消臭剤組成物、及び臭いを低減させる消臭方法の提供。【解決手段】少なくとも、水と、下記式（１）で表されるポリヒドロキシアミン化合物及び／又はその塩（ａ）を、水の質量を基準＝１００質量％として、０．２％以上含有する消臭剤組成物を、適用すべき対象物に付着させ、該対象物の臭いを低減させる。【選択図】なし
