Our Iso Whey Zero product is a whey protein isolate, which is lactose, gluten, and sugar-free, and has a higher protein content.
Our 100% Pure Whey product contains both whey concentrate and isolate, with a slightly lower percentage of protein content. It is not lactose or sugar-free, but it does not contain added sugar. It has a denser, creamier, and sweeter texture. They differ in terms of percentage of protein content, but both contain 21g of protein.
For Iso Whey Zero, one serving contains 25g of protein, while for 100% Pure Whey, it's 28g per serving.