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Impact Whey Isolate is Myprotein's leaner step up from its standard Impact Whey, filtered to roughly 90% protein so each 25g serving comes with almost no fat or sugar. It mixes thin and fast, which suits people who want protein without a heavy shake, and it is Informed Choice certified for athletes subject to testing. Against rivals like Optimum Nutrition Gold Standard Isolate and Dymatize ISO100, it holds up on macros but is known for plainer flavoring and a thinner texture. The Chocolate Peanut Butter flavor divides buyers more than the core flavors do.
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Lowest price we've seen: $47.99 on Nov 10 at Myprotein. Tracked across 2 stores since Nov 10.
With around 18,000 ratings averaging 4.4, most buyers rate the macros, mixability and value highly and repurchase. Complaints cluster on flavor strength, especially Chocolate Peanut Butter, and on the thin, watery texture.
