Flavor: vanilla | size: 14 fl. Oz (Pack of 12) core power elite is a delicious protein shake. The base of our protein drinks is ultra-filtered milk, which follows an innovative filtration process to concentrate protein and calcium and filter out lactose. With 42g of high quality Complete Protein and all 9 essential amino acids, core Power Protein drinks support healthy workout recovery. Core power elite high protein shakes are also available in Chocolate.