2. Rockstar Energy Drink
Rated as the second largest energy drink brands, Rockstar is one of the best selling energy drinks in USA after Red Bull. Some of the active ingredients in this energy drink include ginko, ginseng, milk thistle and guarana both of which lead to the increase of the body energy. Rockstar comes in 3 different sizes as well as 3 coffee versions and 1 version of alcoholic. This energy drink tastes like carbonated cotton candy when other drinks are too sweet in taste. In the market, Rockstar energy drink is sold in more than 12 different flavors making it popular among the youth.