BulkSupplements Whey Protein Concentrate is protein from the left over from the process of making cheese (whey). Whey contains everything that is soluble in the milk that is left over. Whey Protein Concentrate is a rich source of protein that may support muscle growth and aid in the recovery of exhausted muscles after anaerobic exercise.* Whey Protein Concentrate is also a great source of leucine and branched-chain amino acids (BCAAs), essential amino acids that are largely found in muscle tissues and used primarily in the production of proteins. This protein powder is flavorless and does not have any artificial flavoring and sweeteners. You can add sweeteners and flavoring of your choice or add it to your shakes.