Isoflex is significantly lower in lactose, fat, sugar and carbohydrates, compared to regular WPIs. If youre looking for the highest quality, most premium, fastest absorbing protein, then look no further than ISOFLEX; a truly superior whey protein isolate. In almost every way a protein can be, ISOFLEX is truly Superior. What does this mean to you? A source of 100% native, intact whey protein isolate, undenatured whey protein fractions Lab tested, certified & approved 27g of pure protein in every serving Hybrid Isolate (HRI) - Ion Filtration Technology ISOFLEX employs a unique protein extraction technology called HRI. A hybrid of two isolate purification technologies incorporated in a specific ratio to produce a truly superior, ultra-pure whey protein isolate. Cutting-edge Hybrid Ion Filtration (HRI) technology allows ISOFLEX to retain exceptionally high protein yield while maintaining enhanced bioactive whey fractions. ISOFLEX contains absolutely no whey concentrate. Concentrates have higher levels of fats and sugars with a lower percentage of protein and lower bioavailability than isolates. While other brands use Concentrates, ISOFLEX users know that Isolates have a higher protein percentage and won't settle for non-isolate blends.