Esco Bar is the flagship disposable e-cigarette brand under U.S.-based Pastel Cartel LLC. Founded by a group of anonymous industry insiders in late 2020, the brand relies entirely on contract manufacturers in Shenzhen, China, for production. It emerged as one of the biggest beneficiaries of the global synthetic nicotine vaping wave. Capitalizing on the regulatory gap created when the FDA banned non-tobacco flavored e-cigarettes derived from tobacco, Esco Bar rapidly ascended through a strategic combination of "synthetic nicotine + diverse flavors + high cost-effectiveness," briefly securing its position as the third-largest disposable e-cigarette brand in the U.S. market.