The invention relates to an active ingredient combination which comprises a) glycerol monoalkyl ether, b) bispyridinium alkane, c) polyol and d) antioxidant. The combination is advantageously used for producing a preparation for the treatment of undesired body odour, for example for producing a cosmetic deodorant preparation, an antidandruff hair cleansing composition, a preparation for the treatment of blemished skin and acne or a preparation for the treatment of foot and/or skin fungus.