Four Loko Sour Blue Razz 23.5oz Can is an alcoholic beverage known for its intensely sweet and sour blue raspberry flavor, often described as artificial and very potent. It's part of the Four Loko line, which gained notoriety in the late 2000s and early 2010s for its original formulation that combined alcohol with caffeine, guarana, and taurine. This led to health concerns and regulations, resulting in the removal of the stimulants from the drink in most markets. Despite the changes, Four Loko remains popular for its high alcohol content and bold, often divisive flavors, appealing to those seeking a strong, sweet, and convenient alcoholic drink for parties or casual consumption.