Brand Analysis
C4 Original's volume dominance is earned by accessibility — 150mg caffeine, affordable, available in every gym, supermarket, and supplement store globally. As a beginner entry point it works fine.
The clinical dosing on C4 Original (1g arginine AKG, 1.6g beta-alanine) falls significantly short of what Transparent Labs, Legion, and Kaged deliver. For experienced lifters who've moved past beginner tolerance, C4 Original won't provide meaningful incremental benefit over caffeine alone.
C4 Ultimate is a different product — 6g citrulline, 3.2g beta-alanine, 300mg caffeine. Genuinely clinical doses. Competitive with the better-known TL and Legion products at a similar price point.
4 products across 2 categories · 0 reviewed · 4 reviews coming soon
In Stock
In Stock
In Stock
In Stock
🧪 Lab Testing History
No independent lab test data currently available for Cellucor products. We test products as lab access allows.
❓ Frequently Asked Questions
Yes — 150mg caffeine, accessible taste, widely available. Perfect first pre-workout.
The original formula is underdosed for experienced users. Upgrade to C4 Ultimate, or switch to Transparent Labs/Legion for clinical doses.
C4 Ultimate — 300mg caffeine, 6g citrulline, 3.2g beta-alanine. The only C4 with clinical doses.
Yes for healthy adults at recommended doses. Avoid if caffeine sensitive.
No — not certified across the range.