The Lifting Lab

Head-to-Head · 2026

Cellucor C4 Original vs HR Labs Defib V3

No approved effectiveness assessment is available. Historical percentages are unverified and do not establish dosing, product quality or a recommendation. Labels and listed prices remain available for research.

Verdict

No approved effectiveness assessment is available. Historical percentages are unverified and do not establish dosing, product quality or a recommendation. Labels and listed prices remain available for research.

Not assessed

Cellucor

C4 Original

Pre-Workout
Not assessed

HR Labs

Defib V3

Pre-Workout
Serving
6.5g
10.5g
Retail
£24.99
£39.99
listed price / serving
£0.83
£1.00
Caffeine
150mg
250mg
NALT / N-Acetyl-L-Tyrosine
200mg
—
Beta-Alanine
1600mg
3.2g
L-Citrulline
—
8g
Betaine
—
5g
Taurine
—
3g
View retailer ↗Unverified listing · check pack and price · affiliate link
No verified offer
C4 Original review →Defib V3 review →Pre-Workout buyer's guide →More comparisons →

How we score

No approved effectiveness assessment is available. Historical percentages are unverified and do not establish dosing, product quality or a recommendation. Labels and listed prices remain available for research.

Informational only — not medical advice. Retailer links carry their own disclosures. This never affects scoring.