C4 Original 60 Serv. by Cellucor is one of the world's most popular pre-workout supplements, with over 2 billion servings sold since 2011. Formulated with CarnoSyn® beta-alanine, it helps improve muscle endurance against fatigue. It includes N03-T® (creatine nitrate) and citrulline malate for greater muscle pump. With 150 mg of anhydrous caffeine per serving, this product is also enriched with vitamins C, B6, and B12, which contribute to normal energy metabolism and help reduce tiredness. Sugar-free, it comes in a container with 60 servings and is available in a variety of flavors, each with slight differences in composition. It’s important to mix one serving with 120-180 ml of water and consume it 20-30 minutes before workout. Store in a cool, dry place, protected from direct sunlight, and close the container tightly after each use.