Tik Tok real-name authentication requires face recognition, and the real-name authentication information of Tik Tok account cannot be modified after real-name authentication. The specific operation steps of real-name authentication are as follows:

1. Click the three horizontal icons on Tik Tok's home page, and then click Settings.

2. Click Accounts and Security on the Settings page.

3. Click on the real-name authentication on the account and security page, and then complete the authentication as required.