Concentrate and isolate differ in processing and composition, including potentially lactose content. Compare protein, ingredients and cost per serving rather than assuming isolate is best for everyone. Both are unsuitable for people with milk-protein allergy unless advised otherwise by a clinician.
Compare the actual label, not just the category
Concentrate and isolate describe protein processing, but your buying decision concerns the finished product. Compare protein, calories, carbohydrates, fat and ingredients per serving, then calculate the cost of equal amounts of protein. WPC 80 as an ingredient description does not automatically mean a flavored finished powder is 80% protein. Check serving weight and protein grams on the exact flavor’s label.
Is the price difference useful for you?
If concentrate fits your diet and tolerance, a more expensive isolate may offer no useful advantage for your situation. Some isolates may contain less lactose, but the category name is not a lactose-free guarantee. Milk-protein allergy differs from lactose intolerance, and both whey categories come from milk. Confirm the actual size and stock before purchase, and avoid comparing an ISO single-serving listing with a full Pure Whey tub as though they were equivalent products.
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View current price and purchase options for Spartacus Whey 4 Weeks.
Common question
Are prices and specifications fixed?
They can vary by size, flavor and updates; use the current product page and label.