Did you know that smell is one of our most primal senses? The olfactory nerve which takes the smell from our nose to our brain, only has to go through two synapses to get to the amygdala, the part of the brain responsible for expressing emotion. Our other senses all go through higher brain processes before we experience a reaction. Smell can evoke an immediate emotional response. Like how a musky cologne immediately transports me back to my grandfather's house. Fragrances have come a long way.
The source of the original musk scent was once taken from the scent pods of male musk deer. Today these scents are made in artificially in factories by scent specialists. There are many different perfumes out on the market but there are only a handful of companies that own them all. This graphic from the team at fragrancex.com shows there are only 11 conglomerates that own the hundreds of popular perfumes on the planet.