Pure Label Nutrition's Pure Whey Grass-Fed and Promix's Grass-Fed Whey Isolate are both high-quality protein powders that prioritize natural, grass-fed sources for their whey. They both offer a substantial amount of protein per serving and have a focus on clean, minimal ingredients. However, they differ in their protein forms and sweeteners. Pure Label Nutrition uses a whey protein concentrate and sweetens its product with stevia, while Promix uses a whey protein isolate and opts for organic coconut sugar for sweetness.
After a thorough comparison, we recommend the Promix Grass-Fed Whey Isolate. Despite the slightly higher carb content due to the inclusion of coconut sugar, the use of whey protein isolate makes it a more efficient protein source. The product's value is excellent for a grass-fed product. Overall, Promix Grass-Fed Whey Isolate offers a great balance of quality, effectiveness, and value.