HR LABS // CARB UPCarb Up for War. Cluster Dextrin based Intra training fuel that is rapidly absorbed, easy to digest and formulated to supply sustained energy. Perfect for intense training and periods of prolonged exertion. You ain't going far without fuel. Carbohydrates often get a bad rap around training, seen as the enemy, surplus to requirements, nowadays overshadowed by EAA and electrolyte loaded 'Carb Free' alternatives. The truth is, both are of benefit with