The present invention relates to antiperspirant cosmetic agents in the form of an O/W emulsion, which include a combination of an antiperspirant compound with a cross-linked silicone polymer in a weight ratio of 3:1 to 12:1. The previously mentioned combination leads to an improved antiperspirant effect of the O/W emulsions and to improved cosmetic properties, particularly reduced tackiness and textile soiling. The present invention also relates to a method for preventing and/or reducing the perspiration of the body by using the O/W emulsions and the use of at least one cross-linked silicone polymer in O/W emulsions to improve the antiperspirant effect of said emulsions.