As for this invention, the chemical compound formula (i) [in formula, as for S, displaying the monosaccharide or the polysaccharide which includes the sugar unit 20 or less S-CH2 connection is C-gurikoshido connection As for X, the hydrogen atom, or - OR1 and NR1 R2 or =O displaying the basis which is selected from the basis As for Y, - OR3, - NR displaying the basis which is selected from1 R2, and OSi (R4) 3 As for Z, the fluorine atom, or the direct C1 - C6 alkyl groups, annulation or the divergence C3 - C6 alkyl groups, - OR1, - NR1 R2, - COR1, - CO2 R1, - CONR1 R2, and - displaying the basis which is selected from CR3 m is integer of the range 0 - 4 As for aforementioned R1 and R2, becoming independent mutually, the hydrogen atom, or the direct C1 - C6 alkyl groups, annulation or the divergence C3 - C6 alkyl groups, displaying the aralkyl, or phenyl As for R3, hydrogen atom, or direct C1 - C6 alkyl groups, annulation or divergence C3 - C6 alkyl groups, aralkyl or phenyl, or - SO3 H, - displaying PO3 H2 or - COR1 basis R4 includes, solvent dishes dressed with sauce, and these isomers such as these salts and these hydrates which are allowed the direct C1 - C6 alkyl groups, annulation or the divergence C3 - C6 alkyl groups, or phenyl are shown], and as cosmetics, it regards the composition for the decolorization element of the skin.本発明は、式(I)の化合物[式中、Sは、20個以下の糖単位を含む単糖あるいは多糖を表し;S-CH2結合は、C-グリコシド結合であり;Xは、水素原子、または-OR1及びNR1 R2または=O基から選択される基を表し;Yは、-OR3、-NR1R2、及びOSi(R4)3から選択される基を表し;Zは、フッ素原子、または直鎖C1~C6アルキル基、環状もしくは分岐C3~C6アルキル基、-OR1、-NR1R2、-COR1、-CO2R1、-CONR1R2、及び-CR3から選択される基を表し;mは0~4の範囲の整数であり;前記のR1及びR2は、互いに独立して、水素原子、あるいは直鎖C1~C6アルキル基、環状もしくは分岐C3~C6アルキル基、アラルキル、またはフェニルを表し;R3は、水素原子、または直鎖C1~C6アルキル基、環状もしくは分岐C3~C6アルキル基、アラルキルもしくはフェニル、または-SO3H、-PO3H2もしくは-COR1基を表し;R4は、直鎖C1~C6アルキル基、環状もしくは分岐C3~C6アルキル基、またはフェニルを示す]、並びに化粧品として許容されるこれらの塩、これらの水和物等の溶媒和物、及びこれらの異性体も含む、皮膚の脱色素のための組成物に関する。