From the Manufacturer's Label:
The True Strength of Whey
Whey Protein Isolates (WPI's) are the purest form of when protein. That's why they're the first ingredient you read on the Gold Standard 100% Whey label. This superior quality powder has been instantized to mix easily using a spoon.
About Puritan’s Pride
For more than 40 years, Puritan's Pride has helped families achieve a lifestyle of wellness. Our vitamins and supplements are made with care from the highest quality ingredients. They are tested or inspected as many as 15 times throughout the manufacturing process. That's why you can shop with confidence. We take pride in our products and helping customers feel their best.