Brain Licker is a type of confectionary manufactured by Key Enterprises. [1] It is typically sold in small bottles plugged with a plastic ball which revolves when licked, delivering its sour liquid content. It is about as acidic as lemon juice [2] and excessive consumption can lead to burns, blisters or small cuts in children's mouths. [3] In 2003 the British Food Standards Agency issued warnings to parents regarding this as well as possible choking hazards. [4] There are several different flavours of Brain Licker, the most popular of which are strawberry, peach, apple, blue raspberry, grape, blackberry, lemon, watermelon and cola.