7.8Good
A true zero-carb whey isolate: 25 g of protein plus a broad vitamin and mineral blend in a 110-calorie scoop, at a price above most rivals.
cGMP
4 videos ShopProtein Powder
Brand profile
Isopure
Isopure traces its roots to 1984, when founders Hal and Ernie began making nutrition products, and the company introduced the Isopure line in 1998. Now part of Glanbia's performance nutrition portfolio alongside Optimum Nutrition, the brand focuses on whey protein isolate, offering zero-carb and low-carb powders, clear protein, protein water and ready-to-drink shakes sold on Amazon, TikTok Shop and at major US retailers.
- Downers Grove, Illinois, USA
- Founded 1984
- theisopurecompany.com
7.8
Average score
Across 1 product
Testing & quality
Brand states products are made under FDA Good Manufacturing Practices and tested by its own quality assurance labs; no third-party banned-substance certification found for the Zero Carb powder.
Isopure products we’ve reviewed
Video reviews