It was the first 5-hour ENERGY flavor, and still one of the most popular. Boasting the perfect blend of B vitamins, nutrients and caffeine, Berry 5-hour ENERGY started it all. Want a great pick-me-up? Go retro and buy this classic today. Berry 5-hour ENERGY shots are packed with essential B-vitamins and amino acids to help you get that energized feeling all with four calories and zero sugar or herbal stimulants.