Ultimate Nutrition ISO COOL 900G - is produced exclusively through a new and innovative technology, ColdPure ultrafiltration. ColdPure ultrafiltration isolates the native whey protein in a highly bioactive form using an advanced low temperature ultrafiltration process. ColdPure ultrafiltration produces a superior Bioactive whey that is non-denatured and has essential amino acids (EAAs) and branched chain amino acids (BCAAs). IsoCool® Whey Isolate includes all the bioactive whey protein fractions such as beta lactoglobulin, alpha lactalbumin, glycomacropeptide, immunoglobulin, serum albumin, proteose peptone, and naturally occurring lactoferrin and lactoperoxidase.