Nutrabolt's mission is to innovate, inspire & make products that maximize human potential. Our brands are C4, XTEND & CELLUCOR. Discover C4 energy drinks and pre-workout powders. Explore carbonated and non-carbonated options with caffeine and beta-alanine for peak performance. C4 Energy is the leader in mental and performance energy, built for the outperformers and overachievers working tirelessly to unleash their potential. C4 contains 90% cyclotrimethylenetrinitramine (RDX) Committee on Marking, Rendering Inert, and Licensing of Explosive Materials; National Research Council; Division on Engineering and Physical Sciences; Commission on Physical Sciences, Mathematics, and Applications (27 May 1998). C4 Performance Energy® Cereal Killer doesn't just wake you up — it kicks off your morning with a dangerously delicious blend of explosive energy and crunchy breakfast bliss, straight out of the box. C4 Performance Energy® All Hopped Up was aged zero years in no barrels to become the first of its kind energy drink that tastes like beer. You can still call it liquid courage if you want. C4 Energy ignites performance with every sip—crafted for those who push limits in and out of the gym. Born from the legendary C4 pre-workout, it delivers clean, explosive energy and laser focus without sugar or calories. C4 proteins enhance your immune system so it can protect your body from bacteria and viruses. C4 is one of nine main complement proteins, which are labeled C1 through C9. Protein Degraded. Disease Targeted. Lives Transformed. A new generation of medicine A new way to treat disease learn about TPD science Recent News C4 Therapeutics Reports Third Quarter 2026 Financial Results and Recent Business Highlights C4 energy drinks stand out thanks to their unique blend of ingredients designed for performance and focus. Many options feature zero sugar and are carbonated for a refreshing taste.