It is safe to log in to Vipshop through Douyin, because Vipshop is a formal e-commerce platform with complete security measures, and user information will be protected. At the same time, Douyin and Vipshop also have a cooperative relationship. Using Douyin account to log in to Vipshop can make shopping convenient and fast, but you should pay attention to protecting personal information when logging in, and avoid leaking sensitive information such as account passwords to avoid unnecessary losses. In short, under the premise of protecting personal information, it is safe and reliable to use Douyin to log in to Vipshop.