When it comes to building lean muscle nothing is more important than amino acids, the building blocks of protein tissue. Chaos Crew Pumping Aminos 2.0 is a high-quality Aminos blend that should be the staple in any bodybuilding lifestyle. Now with improved flavour and the addition of nooLVL which is an upgraded version of Nitrosignie, an ingredient that supports blood arginine levels and nitric oxide production, enhanced energy, promoted focus and mental acuity, and supported better muscle response following exercise.