Myprotein vs Protein Works: Price Comparison 2026

Myprotein and Protein Works are two of the UK's biggest direct-to-consumer budget protein brands. Both sell direct, both ship from UK warehouses, and both run near-constant discount codes, so their headline prices are almost never what you actually pay. The question buyers keep asking is which one is genuinely cheaper once you normalise for protein content.

This page answers that with data, not opinions. Every product from both brands is listed below with UK pricing, normalised to cost per 25g of protein so you can compare fairly regardless of bag size. On the spec sheet Protein Works Whey 80 carries 74g of protein per 100g against Myprotein Impact Whey's 72g, but Myprotein's floor price per 100g of protein has been lower on average over the last quarter. Protein Works Whey 80 wins on bag price (1kg from around £17.89 vs Myprotein's £22.99), while Myprotein wins on flavour range with 48 options against Protein Works' five.

Every price is shown with the date it was checked, and the cheaper brand can flip depending on which sale is live. Use the grid below to see which brand offers the better cost per 25g of protein right now, then read the full breakdown underneath.