Blue Raspberry Extra Strength 5 Hour Energy Shots 12 Pack QUICK, SIMPLE, EFFECTIVE. Provides a feeling of alertness and energy. ZERO SUGAR, ZERO CALORIES. 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. What is a blue raspberry, anyway? Despite its popularity as a flavor in soda, ice pops and slushies, you won’t find them at the local orchard. That’s because blue raspberry is not a fruit. Instead, it’s a sweet and tangy flavor with a taste that nature couldn’t make — but should have. Today that distinctive taste is available in all sorts of products, including Blue Raspberry Flavor Extra Strength 5-hour ENERGY shots.