To check whether Weibo fish oil is genuine, you can use the following methods:

1. Check the authenticity of the product through the anti-counterfeiting label on the product package.

2. Check whether the product batch number is consistent with the official certification in official website.

3. Ask professionals whether the products are genuine by consulting customer service or calling customer service.

4. Choose formal channels, such as official website or authorized dealers, to avoid buying fake and inferior products.

All these methods can help you confirm the authenticity of Webb fish oil. If you have doubts about the authenticity of the product, it is recommended to buy it through official channels to avoid fraud or buying fakes.