Method 1: Go to the official website to check, enter the anti-counterfeiting code and verification code and click to check whether the product is authentic.

Method 2: Telephone inquiry. After the voice prompt, enter the anti-counterfeiting code # to end. If you make a mistake, you can enter * and re-enter the anti-counterfeiting code.

If the authenticity has been checked by phone, the time when the security code was last checked will be prompted when checking via the Internet. If you check it yourself, of course there is no problem. If it has been checked by others, , then it means it is a fake.