Why is whey isolate usually more expensive?

Isolate is processed to increase protein concentration and reduce carbohydrate and fat, which usually raises the price.

Is isolate always better value?

Not always. Isolate can be better for macro targets, but concentrate often wins on pure cost per gram of protein.

•Compare all UK protein powder prices in one place•

Isolate is often priced above concentrate. Comparing by cost per 100g and protein density makes the real difference clear.

Live prices375 products9 retailersUpdated 4 Jun 2026

Planner

How much protein do you want per day from powders?

Protein target

g / day

Loading comparison table