Sour Apple Extra Strength 5 Hour Energy Shots 12 Pack Quick, simple and effective. Provides a feeling of alertness and energy. Zero sugar and packed with B vitamins and amino acids. Extra Strength 5-hour ENERGY shots contain about as much caffeine as 12 ounces of the leading premium coffee. Available in an array of great-tasting flavors. Pucker up. There are times when you want a taste that’s strong. Bold. A little sweet and a lot sour. That’s when you want to reach for Sour Apple Flavor Extra Strength 5-hour ENERGY shots. With a crisp, tangy taste, they have a beefed-up blend of vitamins, nutrients and caffeine made to appeal to those who love cool fall mornings and lush green forests.