Pro Complex PM is an Augmented Protein System (APS) specifically formulated to help support muscle recovery and repair while you sleep. The APS in Pro Complex PM includes a blend of complete (Calcium, Magnesium, Potassium and Sodium Caseinates plus Whey Protein Isolate) and partially hydrolyzed proteins (Glutamine Peptides, Hydrolized Whey Peptides) as well as isolated amino acids like L-Glutamine, L-Arginine, L-Taurine and the three Branched Chain Amino Acids (BCAAs). Together these components deliver an almost time-released stream of essential nitrogen to help support recovery throughout the night while you sleep.