WPC is why protein concentrate stands for concentrated whey protein. 80 indicates that protein content is 80%. WPC80 and WPI90 are raw materials to be produced. The difference between WPC, WPI raw powder and brand protein powder is that the former is a cheap raw material. Brand protein powder is an edible high-purity Whey Protein Isolation processed from raw materials. Brand protein powder is a high-purity whey protein obtained by further processing on the basis of concentrated whey protein, that is, whey protein with a concentration of more than 90% is separated or ion-exchanged, which kills a large number of microorganisms and pathogenic bacteria in the original powder and is easy to absorb, which is why brand protein powder is expensive. In the United States, raw flour without deep processing is not allowed to be sold to consumers. Of course, there are 60 powder and 80 powder in the brand protein powder barrel on the market now, and even the domestic anti-counterfeiting code is affixed, pretending to be brand protein powder and selling it to consumers. Be cautious when buying imported brand protein powder. I hope my explanation can help you. Please help me if anything happens. hmily0 122。