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Gainful Whey Isolate is a flavored whey protein isolate powder with 25 g of protein per serving, sold through Gainful's quiz-based subscription that matches a formula to your goals and dietary needs. The isolate base digests quickly and suits people who want a lean protein boost after training or between meals. Compared with off-the-shelf tubs, it offers personalization and single-serve stick packs but less freedom to buy on your own schedule. Buyers with a 5-out-of-5 average praise the taste and how well it mixes.
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Lowest price we've seen: $28.49 on Nov 10 at Gainful. Tracked across 2 stores since Nov 10.
Buyers rate it 5 out of 5 across 12 ratings, with praise centered on taste and mixability. Few mention digestion or long-term results.