The creation and use of fragrances and cosmetics is one of most ancient arts known to humans. Just think of the diverse tribal cultures that use facial and body painting, or recall the stories of the glamor of Cleopatra and the (in)famously luxurious Roman parties drenched in rose perfumes. In the natural world as well, colorful (peacocks) or highly odorous (musk deer) males do everything in their power to attract females.
Fast forwarding from the time of Cleopatra to the twenty-first century, we see that fragrance and cosmetics products have become a billion-dollar industry, promoted by stars of fashion and eagerly purchased by consumers all around the world. The key part that changed is the transition from naturally occurring ingredients in cosmetics to synthetic ingredients that, as readers of the Enviroblog well know, are not currently regulated for safety to human health.
These synthetic fragrance chemicals bear unpronounceable names, such as galaxolide, tonalide, musk xylene, musk ketone, linalol, lilial, or phenylethyl alcohol. In the Wild West of the cosmetics industry, consumers are left to fend for themselves when choosing amongst the potential dangers these ingredients may pose.
Many scientists and public health advocates express grave concern about this lack of government or public oversight for the cosmetics industry. Yet, whatever scientists say, people will continue using fragrances and cosmetics â€“ to feel better about themselves, to conform with the social standards, and, of course, to attract potential mates. So, for this blog post, instead of sympathizing with the plight of fragrance-sensitive individuals (of whom I am one) or worrying about cosmetics ingredients going down into the wastewater stream, I will focus on the â€œindividual olfactory signatureâ€ that is unique to each human being and every forest mouse.