Jolt is a very powerful energy drink! In Jolt's 23.5 oz Re-sealable Battery Bottle one can find over 280mg. of caffeine, approximately 2,800 mg. of taurine, 56 mg. of both Guarana and Ginseng and just about any B vitamin you're looking for. And you know what? JOLT'S AN ENERGY DRINK THAT ACTUALLY TASTES GOOD!