Bsn cellmass 20 is a state of the art concentrated post training recovery agent after an intense training session muscles are in a state of heightened stress and need the right support in order to recover paving the way for strength and athletic performance to facilitate this cellmass 2039s completely redesigned formula delivers three forms of creatine as well as glutamine taurine and hydrolyzed whey protein to replenish fatigued muscles and kick start the recovery process after a wor