“Our results indicate that people select specific perfumes that suit their individual body odor and they thus provide an insight into the highly individual nature of perfume choice.”
Fragrance enhances individual body odor and pheromones are the individual body odor that is enhanced. This is the concept of human pheromone-enhanced fragrances that I detailed in Human pheromones and food odors: epigenetic influences on the socioaffective nature of evolved behaviors.
Both of the research journal articles linked to the URLs above are available for free.