What Is Whey Protein Isolate? Whey protein is a complete source of high-quality protein, containing a comprehensive amino acid profile. Whey protein isolate is a highly purified form of Whey protein. Whey protein isolate goes through a rigorous filtration process, called Cross-Flow Micro-Filtration. Through this filtration process, protein is separated from any additional fat, carbohydrates, cholesterol, and lactose, resulting in a more purified form of protein. If your goal is to optimize body composition, and burn more body fat, this is the right choice for you, since it contains fewer calories, fat, carbohydrates, and sugar than any other type of whey protein or casein. Whey Protein Isolate Benefits † Whey protein isolate is a very rich source of protein that supports muscle growth and aids in the recovery of exhausted muscles after anaerobic exercise. This protein powder is a rich 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. Standardized to at least 90% protein content Aids in muscle recovery Builds lean muscle Higher purity and easier on the stomach than Whey Concentrate Source of BCAAs Antimicrobial properties Controls appetite & boosts metabolism Helps lower blood pressure