Physio-Plex NPX takes pre-workout energy and post-workout recovery to an advanced level to enhance energy, oxygen utilization and muscle repair. Physio-Plex NPX also supports fat metabolism and improves endurance for more successful, higher intensity training with less fatigue and discomfort. This formula promotes maximum gains in muscular development and a higher level of fitness. This formula supplies specific amino acids with Creatine (contains caffeine).