Whey Protein Isolates (WPIs) are the purest form of whey protein that currently exists. WPIs are costly to use, but rate among the best proteins that money can buy. Thats why theyre the first ingredient you read on the Gold Standard 100% Whey label. By using WPI as the primary ingredient along with premium ultra-filtered whey protein concentrate (WPC), were able to pack 24 grams of muscle-building protein into every serving. ONs attention to detail also extends to mixability. This super quality powder has been instantized to mix easily using a shaker cup or just a glass and spoon. There’s no doubt that this is the standard by which all other whey proteins are measured.Ingredients Protein Blend (whey protein isolate, whey protein concentrate, whey peptides), natural and artificial flavors, soy lecithin, salt, acesulfame potassium, sucralose, lactase.Free Form Contains milk and soy (lecithin) ingredients.