1. Look at the authorization on the top pull tab. Genuine Red Bull will have a circle of authorized small letters on the top of the ring: "Red Bull" and "redbull" trademarks are authorized to be used by Thailand Tencel Pharmaceuticals and Health Care Co., Ltd.

2. Look at the trademark. The trademark of genuine Red Bull is two circles with the trademark LOGO in the middle.

3. Look at the ingredient list. For a drink of the same volume, the taurine content in the genuine Red Bull is 190mg, while the pirated version is 125mg. Red Bull is a vitamin functional drink (a health food in our country), and it is also called an energy drink abroad.