the present invention is an antiperspirant product , comprising : an oil - in water microemulsion including an oil phase and a water phase and being substantially free of alcohol , said microemulsion further comprising : one or more oil - in - water emulsifiers selected from the group consisting of polyethoxylated oil - in - water emulsifiers , polypropoxylated oil - in - water emulsifiers and polyethoxylated and polypropoxylated oil - in - water emulsifiers , wherein said microemulsion has a total emulsifier content of less than 20 % by weight , based on the total weight of the microemulsion , and one or more antiperspirants , having a total content of 5 to 40 % by weight , based on the total weight of the microemulsion , wherein said microemulsion is prepared by bringing a mixture comprising the water phase , the oil phase , and the one or more oil - in - water emulsifiers to a temperature within or above the phase - inversion temperature range , and subsequently cooling it to room temperature , and a pump atomizer , comprising : a container , and an atomizer pump comprising a riser tube , a cylindrical chamber which is placed under pressure by depressing a piston , a pump valve which closes the cylindrical chamber and opens under a pressure of at least 0 . 7 mpa , and two or more turbulence channels radiating to a nozzle opening , said channels causing a flowing liquid to rotate relative to a flow axis .