What is the USN B4-bomb? The USN B4-Bomb is a powerful pre-workout beverage from the USN Hardcore Series. Available in 5 delicious flavours, the B4-Bomb provides a premium pre-workout aimed at helping you reach new levels and break through your plateau. What are the benefits? An exhilarating pre-workout, formulated to offer you’re a hardcore supplement to support your energy levels and stamina when it counts. Our innovative supplement can also provide the following benefits: Teacrine - TeaCrine™ works with the body's natural metabolic processes to deliver longer lasting energy, increase mental clarity and improve mood and motivation.* ALA - Protect muscle and increase glucose uptake in the muscle for more power and recovery. Astragin - Supports increased strength through enahnced glucose absorption and power/pump. Also supports helps muscle recovery and pump. Is this product for me? Formulated for those looking to make the most of their workouts with a hardcore supplement, the B4-Bomb will provide you with an exhilarating pre-workout.