Natreve 100% New Zealand Grass-Fed Whey Protein Isolate contains the best whey isolate on the planet. We exclusively use 100% Grass Fed Hormone free non-GMO whey protein isolate from New Zealand. This is the best source of protein your body can digest with the highest bioavailability. We are also extremely mindful of sustainable initiatives which is why we chose a source that has the least impact on carbon footprint and the most earth friendly supply through sustainable methods.