It has long been customary in Paldea for farmers to slaughter their Oinkologne for pork not long after evolution. They will not grow much larger and do not produce secondary products, such as wool or large amounts of milk, which will defray the cost of their increased appetites – for both Lechonk and Oinkolonge eat plants which would otherwise be brought to market. With the rise of competitive pokemon battling, stronger Oinkolonge are occasionally sold off to trainers instead, but the majority of farm-raised Oinkolonge end up in someone's stomach.

According to the company's official history, Cologne d'Oin originates from a Paldean farmer who could not bear to part with his beloved Lechonk, and sought a way to keep raising it without being bankrupted by its appetite. The reality is more complex; any individual with the capital to start a perfume company (and indeed, most better-off farmers) could surely afford to keep a single Oinkologne as a pet, and business records suggest that it was initially a group of farmers from the same village, not a single individual, who went into the industry as a conglomerate. Yet the story continues to be told, at least in its home region, for it speaks to a common concern and experience.

Young women around the world, in places far from Paldea, are reliably horrified to learn that Cologne d'Oin originates, not with a flower like other popular brands (or the one displayed on the bottle) but from the scent glands of one of the world's least visually appealing pigs. This knowledge, however, is rarely sufficient to make them switch to Gossifleur or Florges branded perfume – or if they do they quickly switch back – for an Oinkologne's scent, whatever the origins, is far more appealing.