As of May 2021, there are only two sizes of Red Bull Vitamin Functional Drink (Original) and Taurine-fortified Red Bull Vitamin Functional Drink (Fortified) on the market, both in 250 ml capacity.

Red Bull in Europe and the United States is a soft drink containing carbonation, and in addition to the standard 250 ml aluminum can version, a sugar-free, low-calorie version was also pioneered in the U.S. region in 2003. As well as being drunk neat, Red Bull is often mixed with vodka and other drinks at parties in Europe and the United States, and is a very popular new trend among young people.

Functional drink market enters "post-Red Bull era":

The Red Bull brand can be said to be the initiator of functional drinks for Chinese consumers, with precise market positioning and successful marketing that has allowed the brand to maintain its dominant position as a functional drink for the past 20 years in China.

Red Bull's precise positioning and successful marketing has allowed the brand to remain the dominant functional drink in China for 20 years.

At the end of last year, the expiration of China's Red Bull trademark license and a series of negative news about corporate downsizing, factory shutdowns and office layoffs made the whole functional drink suffer some repercussions, but with a consumer base in place, the market for functional beverages is not going to cool down.

Zhu Danpeng, a food industry commentator at the China Brand Research Institute, said that from the perspective of the overall macro-consumption environment, the capacity of China's functional beverage market is showing a year-on-year trend of increasing.

With the new generation of post-00s stepping into the ranks of the mainstream consumer group, some of their life and entertainment style determines that the demand for functional drinks will increase, for example, they like to play handheld games, spend more and more time with electronic products, like to stay up late, and are keen to challenge all kinds of sports.

Reference: People's Daily Online - Functional beverage market enters "post-Red Bull era"