CELLUCOR
Cellucor C4 Sport Pre-Workout
- Caffeine per serving
- 200 mg
- Price per serving
- $1.10
- Main actives at researched doses
- 2 of 5
- Label observed
- August 3, 2026
- Confirmed formula changes
- 0
Comparison · Dated labels
THE SHORT ANSWER
Cellucor C4 Sport Pre-Workout declares 200 mg of caffeine per serving and Cellucor C4 Ultimate declares 300 mg, on labels observed August 3, 2026 and July 26, 2026. At the prices FormulaSignal observed, Cellucor C4 Sport Pre-Workout costs $1.10 a serving and Cellucor C4 Ultimate $2.00. They share 5 declared active ingredients; Cellucor C4 Sport Pre-Workout lists 1 the other does not, and Cellucor C4 Ultimate lists 6.
Every figure here is read from the FormulaSignal Record, from each brand's own product page, with the date it was observed. No winner is declared and no product is scored.
At a glance
CELLUCOR
CELLUCOR
Which fits you
Each line is a measured difference between the two labels, not a verdict. Nothing here says either product works, or is safe for you.
You want less caffeine per serving: Cellucor C4 Sport Pre-Workout
200 mg against 300 mg declared per serving. Less is not safer and more is not better; how much suits you is a question for a clinician.
Cost per serving matters most: Cellucor C4 Sport Pre-Workout
$1.10 against $2.00 a serving at the prices FormulaSignal observed (Aug 3, 2026). Not every price here is established as a list price.
You want more of the main actives at researched doses: Cellucor C4 Ultimate
4 of 6 main actives on Cellucor C4 Ultimate sit inside the dose range the cited research used, against 2 of 5 on Cellucor C4 Sport Pre-Workout. A comparison of numbers, not of how well either works.
Side by side
The same fields the FormulaSignal API and MCP server return for this pair.
| Field | C4 Sport | C4 Ultimate |
|---|---|---|
| Caffeine per serving The Record's total across every declared caffeine source. Neither direction is better. | 200 mg | 300 mg |
| Price per serving Observed package price divided by the stated serving count. The basis of each price is on the product's Record. | $1.10 | $2.00 |
| Monthly cost at five uses a week | $23.83 | $43.33 |
| Servings per container | 20 | 20 |
| Ingredients with a disclosed amount A proprietary blend total counts as one amount, and the split inside it stays undisclosed. | 16 of 16 | 21 of 21 |
| Main actives inside researched doses Declared amounts measured against the range the cited research used. Not a measure of effectiveness. | 2 of 5 | 4 of 6 |
| Documented cautions | None on file | Stimulant-load gate |
| Regulatory records A filing exists. It is not a finding about safety. | Huperzia serrata extract | Huperzia serrata extract |
| Confirmed formula changes Zero means none confirmed, not that the formula never changed. | 0 | 0 |
| Label observed | August 3, 2026 | July 26, 2026 |
Ingredient by ingredient
Matched by FormulaSignal's normalized identity, so two brand names for the same compound line up and two forms of one ingredient do not. Vitamins, minerals and electrolytes are left out; caffeine is compared as a total above.
| Declared by both | C4 Sport | C4 Ultimate |
|---|---|---|
| Beta-alanine | 2 g | 3.2 g |
| L-arginine | 2 g | 3 g |
| Betaine anhydrous | 1.25 g | 1.25 g |
| Creatine nitrate | 1 g | 1.5 g |
| Huperzia serrata extract | 5 mg | 5 mg |
Evidence
Each product's Record lists every capture, with both its observation and access dates.
Cellucor C4 Sport Pre-Workout: label
Cellucor · P1 · observed August 3, 2026
Open source evidenceCellucor C4 Sport Pre-Workout: price
Cellucor · observed price, basis not established · observed August 3, 2026
Open source evidenceCellucor C4 Ultimate: label
Cellucor · P1 · observed July 26, 2026
Open source evidenceCellucor C4 Ultimate: price
Cellucor · observed price, basis not established · observed August 3, 2026
Open source evidenceQuestions
Cellucor C4 Ultimate declares 300 mg per serving and Cellucor C4 Sport Pre-Workout 200 mg, on the labels observed July 26, 2026 and August 3, 2026. More caffeine is not better; what suits you is a question for a clinician.
If “stronger” means caffeine, Cellucor C4 Ultimate declares more (300 mg against 200 mg). FormulaSignal does not rate how strong a product feels; that is an experience question the labels cannot answer.
Cellucor C4 Sport Pre-Workout, at $1.10 a serving (observed price, basis not established on Aug 3, 2026), against Cellucor C4 Ultimate at $2.00 a serving (observed price, basis not established on Aug 3, 2026).
Cellucor C4 Sport Pre-Workout: Creatine Nitrate (as NO3-T) (1 g). Cellucor C4 Ultimate: Creatine Nitrate (as NO3-T) (1.5 g).
Cellucor C4 Sport Pre-Workout: CarnoSyn Beta-Alanine (2 g). Cellucor C4 Ultimate: CarnoSyn Beta-Alanine (3.2 g).
FormulaSignal holds no confirmed change for either product. That is a statement about the Record, not a finding that neither formula ever changed.
Keep comparing
Every comparison · Pre-workout lists · What the Record covers
Considering both?
Save either one as Considering. Your Locker keeps the dated label reference, and optional monitoring tells you if a formula you rely on changes before you reorder.
THE LOCKER
Build a personal record of your supplements, free. Turn on monitoring for covered products when you want us to keep checking.