Wechat video live broadcast by overseas Chinese tour guides. Is the international brand with goods genuine?

Wechat video overseas Chinese tour guides live broadcast international brands with goods are not genuine, because they are not from official channels, so they cannot be sure to be genuine, and there is no after-sales guarantee. Because don't trust the information of tour guides purchasing in WeChat circle of friends, the tour guide profession is changeable, especially overseas tours have not recovered, and sea purchases are frequent, so everyone should be vigilant; Consumers should pay through an independent third-party payment platform.