Which department does the private seller report to?

Legal analysis: US Food and Drug Administration. The U.S. Food and Drug Administration requires all localities to open telephone numbers for reporting food and drug complaints. The time limit for completing complaints after receiving all complaints is generally 60 working days. If the situation is complicated, the extension period shall not exceed 30 working days. In addition to telephone, units and individuals can report the illegal acts of drugs, medical devices, health food and cosmetics in the process of development, production, circulation and use, as well as food safety violations in catering services to the regulatory authorities by means of letters, networks, faxes, visits and text messages.

Legal basis: Article 3 of the Measures for the Implementation of the Drug Administration Law of People's Republic of China (PRC) should focus on social benefits in the production and marketing of drugs, and it is strictly forbidden to produce, market and use counterfeit and inferior drugs. It is strictly forbidden to produce and sell drugs and prepare preparations without permission.