The present disclosure relates to cosmetic agents for the reductive decoloration of colored keratinous fibers, more particularly human hair, containing a sulphinic acid derivative and at least one alcohol with from about 10 to about 30 carbon atoms. This combination is able to reduce the unpleasant odor during the decoloration process. The present disclosure also relates to a corresponding kit-of-parts, the use of cosmetic agents and the kit-of-parts, as well as to an application method using the cosmetic agents and the packaging unit.