Compare by brand
Compare every protein brand.
Or jump to Amazon.
Deep-dive comparison pages for 8 major UK brands below, plus full rankings across 276+ brands and 98 UK retailers, with 3,404 products tracked in total. Updated weekly.
Methodology
Why compare by brand?
UK protein pricing varies by more than you might think. The same brand can cost 20 to 30 percent more at one retailer than another on identical products, and the gap between the cheapest brand and the most marketed brand is often 50 percent or higher on cost per 25g of protein.
The brand you pick should match what you actually need. If you compete in drug-tested sport, certification matters more than price. If you're buying for general fitness, the cheapest whey from a reputable UK brand does the same biological job as the premium tubs with three times the marketing budget.
Use the brand pages above to see live prices, current deals and an honest assessment of which buyer each brand actually suits. Every price is pulled directly from the retailer with no promo-code assumptions baked in.