Ageless Fantasy perfume makes wearers appear at least eight years younger, according to the manufacturers research I've yet to smell it (though I'm warned it's a sickly mix of mango, grapefruit, jasmine and musk) but I can report that, according to its manufacturers, research has shown men believe women who use it are at least eight years younger than they actually are. Once that information gets out, there will be a waiting list in minutes, whatever it smells like.
Price: , £215