The FDA and FTC issued joint warning letters to Hopewell Essential Oils and Santiste Labs LLC for selling fraudulent COVID-19-related products. Hopewell made misleading claims that its essential oil products were safe and/or effective for the prevention and treatment of COVID-19, while Santiste made similar claims regarding its botanical oil transdermal patch. The companies are required to respond within 48 hours detailing the specific steps taken to address the agencies’ concerns.