What are pheromone perfumes?

 I do not want to dwell on this too much, but basically pheromones are chemical substances that living beings secrete and that have the ability to generate different actions and responses thanks to the interaction with the receptor's brain.

Many species of animals and plants use pheromones as means of communication and behavior and influence their attitude and thoughts.

The word pheromone comes from the Greek, more specifically from the words pherein and hormon, which mean "to transport" and "stimulus" respectively.

Thus, pheromone perfumes incorporate some of these substances to cause attraction in the opposite gender, which is what we all want.