Is casein usually more expensive than whey?

Casein can cost more than basic whey concentrate, but prices depend on retailer discounts and pack size.

What is the best way to compare casein products?

Compare price per 100g first, then check servings and protein per serving to make sure the cheaper option is still useful.

•Compare all UK protein powder prices in one place•

Less frequently discounted than whey, so the best value moves between brands quickly. All casein products in one filtered view.

Live prices286 products7 retailersUpdated 21 Jul 2026

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