About Relentless
Relentless is a British energy drink brand created in 2006, now owned by Monster Beverage Corporation and distributed by Coca-Cola Europacific Partners in the UK. As the country's fourth-largest energy drink brand worth over £37 million, Relentless has become a staple in the UK energy market. The Relentless range offers diverse flavours to suit different tastes. The core lineup includes Origin (the original classic), Cherry, and Passion Punch. The Zero Sugar range caters to health-conscious consumers with Watermelon, Peach, and Raspberry variants. In 2025, the exciting Guava flavour was added to meet Gen Z demand for tropical tastes. A key differentiator for Relentless is that its entire lineup is low sugar and HFSS compliant, making all products available for promotion and advertising - an advantage over some competitors. The brand comes in distinctive 500ml cans, available in both standard and price-marked packs. With Grocefully, compare Relentless energy drink prices across UK supermarkets and convenience stores to fuel your day at the best value.






