Tuff Supps 100% Australian made, Natural Whey Protein delivers undenatured whey protein goodness directly extracted from the milk of pasture-raised, grass-fed cows. Containing the best of both worlds with a perfect blend of Australian native whey protein isolate and whey protein concentrate. This means that you can have the high protein hit of WPI with the more creamy taste of WPC, with minimal lactose and fat.