Labrada's Muscle Mass Gainer was created by our Labrada Research and Development team to help you gain muscle weight fast. Muscle Mass Gainer is perfect for "hard gainers" those are the athletes who find it hard, or next to impossible, to gain weight. Muscle Mass Gainer is a high-calorie bodybuilding shake fortified with muscle building protein, carbohydrates, creatine monohydrate and essential nutrients. Muscle Mass Gainer makes it easy for you to get lots of calories along with the highest quality muscle-building protein, so you can gain weight fast. Muscle Mass Gainer makes a delicious shake containing a highly- concentrated 1930 calories and 84 grams of protein when mixed with 32oz of whole milk.