Gaining muscle is always about providing your body with the essential amino acids needed to build dense, thick, hard slabs of beef. You wouldn't build a skyscraper with chopsticks would you? Hell no! So if you want to build a muscular physique, you need to drink Protein Rush. With 40 grams of the highest quality hypertrophy producing proteins, VPX has done it again with Protein Rush! With a fast-acting protein like whey protein, Protein Rush is guaranteed to get the essential amino acids into your system fast for dramatic muscle building. And with the slow-acting protein casein, VPX has added the anti-catabolic dimension to insure that your muscles are fed throughout the day! Protein Rush For Maximal Anabolism morning, noon, and night!