Labrada a2 pump is a fantastic workout enhancer designed to increase muscle power improve physical performance the pump is essential in training as it signals the start of new muscle growth with each pump inducing rep nutrient rich blood floods the working muscle cells which in turn kick starts the anabolic process that is so vital in muscle supporta2 pump uses a 100 arginine ethyl ester hcl formulated to increase nitric oxide production helping to increase energy enhance muscle pu