WheyMatrix (High Purity Isolate)

Check whether whey protein isolate is the first and only protein source on the ingredient list. If the label also lists whey concentrate, casein, or milk protein, it is a blend rather than a pure isolate.

Whey isolate generally contains less lactose than whey concentrate because more milk sugar and fat are filtered out. It is still derived from milk, so it is not suitable for a milk allergy and may still bother someone with severe lactose intolerance.

Compare the grams of protein with the total serving weight and look for minimal sugar and fat. For example, 25 g of protein in a 30 g scoop represents a higher protein yield than 20 g in the same scoop.

The useful comparison is protein per scoop, sweeteners, flavoring, lactose tolerance, and whether the powder is hydrolyzed. Dymatize ISO100 uses hydrolyzed whey isolate, while Isopure sells zero-carb isolate formulas, so the WheyMatrix ingredient panel should be checked against those specific features.