Since the very beginning, ON's Natural 100% Whey Protein has raised the standard by which all whey protein supplements are judged. Now years later, we're raising the bar again. Like it's predecessors, ON's Natural 100% Whey Protein contains Optimum Nutrition's exclusive, proprietary blend of. Microfiltered Whey Protein IsolatesIon-Exchange Whey Protein IsolatesUltrafiltered Whey Protein ConcentrateHydroWhey Hydrolyzed Whey Peptideswith no artificial colors, flavors or sweeteners to give you more of what you want (pure, unadulterated whey protein) with less of what you don't (fat, saturated fat, cholesterol, lactose, and other carbohydrates) with every serving. In fact, ON's Natural 100% Whey Protein is better than ever! Here's why: Each and every serving provides MORE PROTEIN - 105% of the protein found in previous varieties. We've included MORE HYDROWHEY - strategically hydrolyzed, low molecular weight whey peptides to make ON's Natural 100% Whey Protein even FASTER ACTING! ON's Natural 100% Whey Protein now CONTAINS LACTASE and AMINOGEN™ digestive enzymes to further enhance absorption and make this product even more friendly to lactose intolerant individuals. HIGHER PROTIEN PERCENTAGE. ON's Natural 100% Whey Protein has always been a leader in this respect. With 23 grams of protein in just a one ounce serving, it's nearly 73% protein by weight! ON's Natural 100% Whey Protein is INSTANTIZED to mix easily and completely with just a few twirls of a spoon. Every serving supplies even MORE low, moderate, and high molecular weight, biologically active WHEY PROTEIN MICROFRACTIONS including Alpha-lactalbumin, Glycomacropeptides, Beta-lactoglobulin, Immunoglobulin G (IgG), Lactoferrin, lactoperoxidase, and various growth factors. Over 3.5 grams of GLUTAMINE & glutamine precursors as well as 5 grams of BCAAs (leucine, isoleucine, and valine) in each scoop!