The brand also unveiled its COR-Performance Series, which includes ingredients like branched-chain amino acids, creatine, and protein.

[3] In 2013, Cellucor had several product launches, including the re-launch of its mass building supplement M5 Extreme, called M5 Reloaded;[4] the anabolic supplement P6 Black, a re-formulation;[5] and Alpha Amino, designed to fight muscle breakdown during recovery.

[6] In late 2014, Cellucor launched the fourth-generation "G4 Series" with updated formulas of pre-workouts, amino acids, nitric oxide boosters, ready-to-drink beverages, testosterone boosters, and weight loss supplements.

[8] In subsequent years, the C4 line expanded into Costco, Target, and Walmart, with NSF certified products.

[10] In 2021, Cellucor partnered with Mars Incorporated to bring flavors based on Starburst and Skittles to the C4 line.