C4 Protein

C4 Protein Launch

C4 Energy is one of Nutrabolt’s leading performance brands, known for energy, pre-workout and active nutrition products built for people who train hard, move often and expect more from their supplements. Its move into protein marked a major step for the brand, with the UK launch of C4 Whey Protein introducing Hershey’s and Reese’s flavoured products that brought together performance nutrition with the taste appeal of two globally recognised names.

Assorted Hershey's chocolate bars in colorful wrappers laid diagonally on a gray surface.

Following the success of the initial UK launch, DayOne worked closely with C4 to support the rollout of the range across multiple formats, including pouches, single serves, large tubs and ready-to-drink protein shakes. The challenge was to maintain the strength of the C4 identity while also protecting the visual recognition and brand equity of Hershey’s and Reese’s, ensuring every label felt consistent, credible and ready for launch across multiple territories.

Tilted orange Reese's C4 Whey Protein bag showing branding and chocolate-peanut butter flavor.
T angled Hershey's C4 Whey Protein bag featuring milk chocolate flavor, with bold yellow C4 logo and chocolate bar graphics on the front.
Blue Hershey's Cookies 'N' Creme whey protein bag tilted on a light gray background, showing large yellow 'C4' and product imagery.

Alongside packaging artwork, DayOne created campaign assets across social media, video and CGI, as well as Amazon assets for multiple international markets. The launch later expanded with further flavour additions, including Hershey’s Cookies ‘n’ Creme, building on the success of one of C4’s best-selling product lines and helping the brand extend confidently into the protein category.

Front-facing Hershey's C4 Whey Protein Cookies 'N' Creme packaging on bright blue background; shows 46 servings and 1.61 kg net weight.
Two standing whey protein bags side by side, featuring Hershey's milk chocolate and Reese's peanut butter cup flavors.

Working with DayOne has been nothing short of transformative for our business. Their exceptional creativity and professionalism have elevated our design standards while becoming an indispensable extension of our team.


C4 Brand Manager

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