The elf bar is a special energy drink that helps keep elves feeling energized and focused during busy holiday seasons. The elf bar is made up of a blend of different natural ingredients, including guarana, ginseng, and various vitamins and minerals. These ingredients work together to help boost the body's energy levels and reduce fatigue. To refill the elf bar, simply open the lid and add more of the same ingredients to the bar. The elf bar is designed to be refilled and reused multiple times.