C4 Ultimate: identify the generation first
This guide covers the U.S. fifth-generation C4 Ultimate powder in Frozen Bombsicle flavor. Its reviewed panel specifies a 20 g serving, approximately one level scoop, and 20 servings per tub. The label and manufacturer page were checked October 12, 2026.
How much caffeine is in C4 Ultimate?
The fifth-generation facts panel declares 300 mg caffeine anhydrous. It separately lists 50 mg methylliberine as Dynamine and 10 mg theacrine as TeaCrine. Their combined weights should not be reported as a caffeine total.
Other entries include 1 g L-tyrosine, 5 mg Huperzia serrata extract standardized to 1% huperzine A, and 1 mg Rauwolfia vomitoria root-bark extract. The 5 mg extract is not 5 mg pure huperzine A.
Read the performance ingredients precisely
- CarnoSyn beta-alanine: 3.2 g.
- Velox: 3 g L-citrulline and 3 g L-arginine.
- Betaine anhydrous: 1.25 g.
- PeptiPump bioactive lentil peptides: 200 mg.
- Creatine nitrate: 1.5 g.
Velox’s two amino acids should remain separate in comparisons. Likewise, creatine nitrate’s compound weight is not a declared dose of creatine monohydrate. Cellucor notes that beta-alanine benefits relate to cumulative use; immediate tingles cannot establish that a workout was more productive.
Why older labels look different
Older C4 Ultimate material describes a different formula. A familiar brand name, similar tub or matching caffeine number is insufficient to show equivalence. Compare generation, market, flavor and serving weight. Ultimate cans also need their own labels.
Warnings and a useful buying comparison
Cellucor restricts this product to healthy adults aged 18 or older and warns against combining it with other caffeine or stimulants. Its medication and health-condition warnings deserve careful review, including restrictions for pregnancy, nursing, nitrates and erectile-dysfunction medicines.
Choose a formula by its complete panel and suitability, then compare delivered cost for the labeled servings. The NIH overview explains why ingredient research alone cannot predict a finished blend’s benefits or risks. This is a label review, not evidence of superior pumps, flavor or strength gains.
Product pages and existing offers
These are affiliate links; we may earn a commission from qualifying purchases. Check current labels and checkout terms. Discounts, including any 20% offer or code SHAWTAYYYY7, are subject to eligibility and are not guaranteed.
The larger sample-kit campaign is distinct from older three-sample or five-sample advertisements. Confirm current contents, shipping, customer eligibility and optional add-ons on its landing page.
Sources and review notes
Reviewed October 12, 2026. Manufacturer reference. Manufacturer reference. Manufacturer reference. NIH exercise supplement review. This is editorial guidance based on identified labels and sources, not a report of personal product testing. Product versions and offers can change.
