THE very word “perfume” has feminine overtones to many male ears. Men can be sold “deodorant” and possibly “aftershave”, but the idea of all those dinky little bottles with their fussy paraphernalia is too much for the sensitive male ego. Yet no industry can afford to neglect half its potential market, and perfume-makers are ever keen to crack the shell of male reticence. Now they may know how to do so.

Craig Roberts of the University of Liverpool and his colleagues—working with a team from Unilever’s research laboratory at nearby Port Sunlight—have been investigating the problem. They already knew that appropriate scents can improve the mood of those who wear them. What they discovered, though, as they will describe in a forthcoming edition of the International Journal of Cosmetic Science, is that when a man changes his natural body odour it can alter his self-confidence to such an extent that it also changes how attractive women find him.

Half of Dr Roberts’s volunteers were given an aerosol spray containing a commercial formulation of fragrance and antimicrobial agents. The other half were given a spray identical in appearance but lacking active ingredients. The study was arranged so that the researchers did not know who had received the scent and who the dummy. Each participant obviously knew what he was spraying on himself, since he could smell it. But since no one was told the true purpose of the experiment, those who got the dummy did not realise they were being matched against people with a properly smelly aerosol.

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