Whey Isolate vs Concentrate: What is the Difference? (2026)

What is the Difference?

You see two options: whey isolate and whey concentrate. Isolate costs more. But is it worth it?

Short answer: for most people, no. But there are exceptions.

How is Whey Made?

• Concentrate: One filtration round → 70-80% protein, with some fat and lactose
• Isolate: Extra microfiltration → 85-95% protein, almost no fat or lactose

Nutrition Compared

When Concentrate?

Choose concentrate if you have no lactose issues and want the best value.

Best Concentrates

• Bulk Natural Pure Whey — €0.019/g
• CN Supplements Whey — €0.019/g
• XXL Perfect Whey — €0.032/g

When Isolate?

Isolate makes sense for lactose intolerance, strict cutting, or sensitive stomach.

Best Isolates

• Bulk Hydrolysed Isolate — €0.028/g
• Myprotein Impact Isolate — €0.033/g
• XXL Whey Isolaat — €0.042/g

Our Recommendation

90% of people: choose concentrate. Cheaper, effective, valuable bioactive compounds.

→ All concentrates | → All isolates