Stephanie Esposito snapped a photo of formula shelves and posted it to Facebook with a simple message. "Costco in Edison 1:30," she wrote on "Formula Finder - NJ", a Facebook group she started in May 2022 at the height of a national baby formula shortage. Esposito formed the group in hopes of finding Nutramegin, the formula her son, Dominic, ate, while offering aid to other parents also struggling.