During an episode of the ABC television show “Shark Tank” that aired Friday, Fur co-founders Laura Schubert and Lillian Tung reveal the brand’s signature oil costs $5.34 to make and retails for $46, leading to a markup of more than 700%. In a subsequent post about the markup, anonymous Instagram account Estée Laundry wrote, “There might be other costs for a company with ~12 employees and no large marketing campaigns, but the markup seems higher than most brands featured on the show? And we all know the science, R&D and testing that’s involved in creating a natural oil blend is astronomical ?.”