Never heard of this stuff before, but took one look at the title and had it figured for this sort of thing almost right off. Be careful not to get ripped off, these things have been around for a long time and are little more than a marketing scam. Think about it...what is a cologne? Basically an attractive smell to arouse the senses and/or cover up foul odor. What is a phermone? Basically something that attracts the opposite sex, a scent given off by the body, which is natural...therefore, why would we need a cologne at all in order to achieve this? Anyway, just trying to help...it may turn out to smell really good; and if that be the case, then you will probably attract attention.