Gu Yu only has a barcode, how can I check the authenticity?

Please check the official website and consult customer service.

1. Official website query: You can check the authenticity of the product by entering the barcode information on the product verification page on the Guyu official website. Usually, the official website provides such query services.

2. Consult customer service: If you have any questions about the authenticity of the product, you can contact Guyu’s customer service and provide the product’s barcode information. The customer service staff will check the authenticity of the product for you.