Does Winona's gift have a security mark?

The query method of Winona security code and the problem of integral exchange.

One: the change of Winona's security code mark.

At first, Winona's security code was printed with the red letter "Winona". After a while, it was changed to the blue letter "BTN" and finally to the black letter "BTN". All three situations are normal. "Winona" means Winona, and "BTN" means betaine. Winona products are produced by Yunnan Betaine Biotechnology Group Co., Ltd.

Second, the query method of Winona security code.

Winona has a unique safety code on the outer packaging of each product.

① Telephone inquiry: There is a number on the outer packaging of the goods.

② SMS inquiry: There is a number on the outer packaging of the goods.

③ official website query: There is a website on the outer packaging of the goods.

④VX media inquiry: Pay attention to Winona media, click the official mall in the lower right corner → verify the authenticity → enter the security code.

5 Jumei APP query: Jumei Online APP can verify the authenticity and score points by scanning the security code.

A real Winona should be able to query in any way except SMS, which may be delayed and blocked.