"In 2001, Manfred Milinski and Claus Wedekind published a very intriguing study on the links between self-preferences of perfumes and individuals' major histocompatibility complex (MHC). The MHC consists of a set of genes that capture a person's unique immunogenetic profile/signature. As such, the MHC is a disassortative mating trait. [...] Incredibly, Milinski and Wedekind found that people preferred perfumes that seemed best suited for their unique MHC profile. In this case, this means that preferred perfumes are those that are most likely to augment an individual's body fragrances as a means of advertising his/her MHC signature".A fascinating observation that extends the basic principle of evolution (survival of the fittest), as expressed in biology terms, into the olfactory.
Read the rest of the article on Psychology Today.
Other links with some info/opinions on body chemistry and fragrances:
Fragrances and skin (an introductory beginner's article on the issue)
How To Choose The Right Perfume For Your Body Chemistry (a more in-depth list of the factors which affect scent performance)
I Have the Body Chemistry of a Man (a self-flagellating satirical article about the perils of having the wrong "body chemistry" for a coveted perfume)
Fragrance Tips (Amidst some "general tips" for perfume use we stumble upon this pearl: "The biggest factor in how a fragrance will smell on you is your body's PH balance. Ideal PH is alkaline - but stress and poor nutrition will turn your balance to acid, and that will affect fragrance." Correction, dear sirs: skin should be slightly acidic, it's how the skin mantle is supposed to self-regulate in order to protect against certain microorganisms)
And you, how do you feel about "body chemistry" and perfumes? Do you have specific aversions or preferences that you feel are tied to your specific psychosomatic make-up? Did you have perfumes change their performance? Discuss!
pic via cdn.picapp.com

