Guerlain has spent 198 years presiding over the perfume counter. In April it climbed onto TikTok and paid Jena Frumes to do the talking. The first paid influencer campaign for its fragrances — the house has run paid partnerships for its skincare line before, but never for scent — defends a $660 extrait that was already the brand’s best-selling product. Vanille Planifolia had tripled annual sales without any help.

The campaign was not commissioned to sell what the fragrance could not sell on its own. It was commissioned to settle an argument the brand had lost the right to ignore: whether a $660 extrait can be duplicated from a TikTok shelf. Bertrand Pochet, the brand’s US general manager, estimated that 95 percent of people engaging with the dupe debate concluded it cannot. The brand is paying creators to defend that verdict because heritage no longer defends it for them.

The dupe economy did not steal Guerlain’s customers; it stole Guerlain’s authority to decide what its perfume meant.

Pochet told Glossy the launch “came extremely organically; we were not really pushing it.” He described the paid campaign as an exercise in brand awareness. A house famous since 1828 is announcing, in 2026, that it needs to expose “our name, our know-how and what we stand for.” The admission is more interesting than the campaign.

This is what the dupe layer has done to LVMH’s pricing logic. A $660 fragrance does not need viral promotion; it needs a moat against the comments that decide whether the moat exists. The assumption was always that the name would do the selling. The name now needs help. In side-by-side TikToks, 198 years of perfumery is arbitrated by Paul Fino and his 2.8 million followers.

The campaign will be judged a success if no one asks why Guerlain felt the need to run it. They will ask.