Like many beauty influencers of her generation, 21-year-old Genesys Skye uses hyaluronic acid fillers to achieve full, plump lips. “I’ve been getting my lips done for a while,” she says. Until earlier this year, she’d normally schedule an appointment at her local medspa for a lip top-up.

But one day, while scrolling through Instagram, she saw an ad for Foxy Fillers, a U.K.-based supplier of dermal fillers. “When I realized I could legally buy legitimate filler at a good price, it appealed to me,” she says.