The present invention provides a composition which contains (A) one or more compounds represented by general formula (1) and (B) one or more compounds selected from the group consisting of diethylenetriaminepentaacetic acid and salts thereof. This composition is useful as an external preparation for the skin, a cosmetic preparation, an air freshener, a food or the like. (In general formula (1), R1 represents -CH2OH or -COOR6； R6 represents a hydrogen atom, a lower alkyl group having 1-3 carbon atoms, or a cation that is capable of forming a salt together with -COO-； each of R2-R5 independently represents a hydrogen atom or a methyl group； and ---A--- represents =C(CH3)-, -C(CH3)=, -C(=CH2)-, -CH(CH3)- or -C(OH)(CH3)-).本發明提供含有(A)以下述通式(1)：(通式(1)中，R1代表-CH2OH或-COOR6，R6代表氫、碳數1~3的低級烷基或可與-COO-形成鹽的陽離子，R2~R5各自獨立代表氫原子或甲基，‧‧‧A‧‧‧代表=C(CH3)-，-C(CH3)=，-C(=CH2)-，-CH(CH3)-或-C(OH)(CH3)-。)所表示之化合物1種或2種以上，與(B)選自二伸乙三胺五乙酸及其鹽類所成群之1種或2種以上之組成物。本發明之組成物做為皮膚外用劑、化妝料、芳香劑或食品等是有用的。
