Well it is possible and you can do it, it just takes quit a bit of effort. So if you are serious about building muscle mass quick then read on fitness lovers because this article is for you.Black Label No You need to make the most out of every single workout this means you must push yourself to the limit. The key to muscle mass quickly is lifting enough weight for muscle failure. When you do a lot of reps you are actually making long lean muscles and burning calories something that you do not want to do if you are trying to build muscle mass. http://www.healthcaresdiscussion.com/black-label-no/