F
🧚 Fairy Dust
200 mg caffeine
- L-Arginine · 1,200 mg
- Beta-Alanine · 2,000 mg
- Choline Bitartrate · 225 mg
$34.99as of Oct 8, 2026, 04:12 UTC
$2.33 / eff. servingas of Oct 8, 2026, 04:12 UTC
Real servings15 / 30
Cellucor C4 Ultimate Pre-Workout
Cellucor C4 Ultimate Pre-Workout is a pre-workout with 300 mg caffeine per serving. StimIndex grades it F tier (40.0/100, methodology v2.10.1). Third-party testing: none on file. It isn't clinically dosed, so there's no fair price per clinically dosed serving (lowest price $39.99, checked Oct 8, 2026).
F
🧚 Fairy Dust
The label math says this one is mostly hope.
Human-reviewed label
300 mg caffeine alone is Heart Go Brrr; Methylliberine (Dynamine), Rauwolfia vomitoria root bark extract and Theacrine (TeaCrine) bump it up three levels, to Talk To Your Cardiologist.
Flavor / size
Icy Blue Razz: No artificial dyes.
- Per serving
- $2.00
- 20 servings on the tub
- Per effective serving
- $2.66
- one clinically dosed serving
Lowest price we found: $39.99 at 1 of 1 stores · checked 2026-10-08 · prices vary by store
We don't earn a commission from store links on this site.
How we got this tier
Dose (D)40.0
How much of the ideal pre this delivers at clinical doses. Missing ingredients, or ones under 80% of their dose, count as 0.
Fully disclosed— every active amount is on the label.
Pump60.0
Focus90.0
Endurance100.0
Salty 🧂75.0
Electrolytes vs. a 300 mg sodium reference. Doesn't affect the tier.
Label math
Scored ingredient totals from the current run, the yield-adjusted actual amount, and the clinical dose we compared it to.
| Category | Ingredient | Label | Yield | Actual | Reference | % of dose | Source |
|---|---|---|---|---|---|---|---|
| Pump | PumpL-Arginineinside “Endurance & Performance Complex” | L-Arginine 3g3,000 mg | ×1 | 3,000 mg | 6,000 mg | 50% | |
| Endurance | EnduranceBeta-Alanineinside “Endurance & Performance Complex” | CarnoSyn® Beta-Alanine 3.2g3,200 mg | ×1 | 3,200 mg | 3,200 mg | 100%builds up with daily use; not in the tier | |
| Strength | StrengthBetaine Anhydrous (counts toward the tier)inside “Endurance & Performance Complex” | BetaPower® Betaine Anhydrous 1.25g1,250 mg | ×1 | 1,250 mg | 2,500 mg | 50%under 80%: no credit | |
| Energy | EnergyCaffeine (counts toward the tier)inside “Ultimate Energy, Focus & Stimulant Matrix” | Caffeine Anhydrous 300mg300 mg | ×1 | 300 mg | 200 mg | 100% ✓ | |
| Strength | StrengthCreatine Monohydrate | Creatine Nitrate (as NO3-T®) 1.5g1,500 mg | ×0.675(creatine nitrate) | 1,013.1 mg | 3,000 mg | 34%builds up with daily use; not in the tier | |
| Focus | FocusHuperzine Ainside “Ultimate Energy, Focus & Stimulant Matrix” | Toothed Clubmoss (Huperzia serrata) aerial parts extract (std. 1% Huperzine A) 5mg5 mg | ×0.01(huperzia serrata extract (1% huperzine a)) | 50 mcg | 50 mcg | 100% ✓ | |
| Pump | PumpL-Citrulline (counts toward the tier)inside “Endurance & Performance Complex” | L-Citrulline 3g3,000 mg | ×1 | 3,000 mg | 4,000 mg | 75%under 80%: no credit | |
| Focus | FocusL-Tyrosine (counts toward the tier)inside “Ultimate Energy, Focus & Stimulant Matrix” | L-Tyrosine 1g1,000 mg | ×1 | 1,000 mg | 1,000 mg | 100% ✓ | |
| Pump | PumpLentil Peptides (PeptiPump)inside “Endurance & Performance Complex” | PeptiPump® Bioactive Lentil Peptides 200mg200 mg | ×1 | 200 mg | — | not scored | |
| Energy | EnergyMethylliberine (Dynamine)inside “Ultimate Energy, Focus & Stimulant Matrix” | Dynamine™ (as Methylliberine) 50mg50 mg | ×1 | 50 mg | 50 mg | not scored | |
| Hydration | HydrationPotassium | Potassium (as Dipotassium Phosphate) 190mg190 mg | ×1 | 190 mg | — | not scored | |
| Energy | EnergyRauwolfia vomitoria root bark extractinside “Ultimate Energy, Focus & Stimulant Matrix” | Rauwolfia vomitoria root bark extract 1mg1 mg | ×1 | 1 mg | — | not scored | |
| Hydration | HydrationSodium (Electrolytes) | Sodium (from Sea Salt) 225mg225 mg | ×1 | 225 mg | 300 mg | scored under Salty; excluded from Dose | |
| Energy | EnergyTheacrine (TeaCrine)inside “Ultimate Energy, Focus & Stimulant Matrix” | TeaCrine® (as Theacrine) 10mg10 mg | ×1 | 10 mg | 100 mg | not scored |
Energy Pump Endurance Strength Focus Hydration
= part of the ideal pre and counts toward the tier. Everything else is shown for the record.
Where the points went
- 100.0Perfect pre-workout
- Pump−30.0L-Citrulline: 75% of 4,000 mg; under 80% earns nothingreference (opens in new window)
- Strength−15.0Betaine Anhydrous: 50% of 2,500 mg; under 80% earns nothingreference (opens in new window)
- Endurance−10.0Taurine: not on the label (reference 1,000 mg)reference (opens in new window)
- Focus−5.0L-Theanine: not on the label (reference 100 mg)reference (opens in new window)
- 40.0Formula score
Scoring notes 62 ingredients excluded from Dose math · 1 electrolyte scored under Salty · 1 other note
Excluded from Dose and clinical servings
Recorded on the label, but not counted toward dose credit.
Scored elsewhere
- sodium is marked electrolyte; excluded from dose score and scored under Salty
Other notes
- Clinical Betaine Anhydrous takes 2 servings = 600 mg caffeine, over the 400 mg limit; Value neutralized and price-based winner awards excluded
Show full nutrition label for Icy Blue Razz
Full printed label
(opens in new window)Supplement Facts
Serving columns: 1 scoop (20 g)
Servings Per Container: 1 scoop: 20
| Nutrient | 1 scoop |
|---|---|
| Calories | 10 kcal |
| Total Carbohydrate | 1 g (1%) |
| Total Sugars | 0 g |
| Includes Added Sugars | 0 g (0%) |
| Vitamin B6 (as Pyridoxal-5-Phosphate) | 3.4 mg (200%) |
| Folate (as 6S-5-Methyltetrahydrofolate calcium salt) | 100 mcg DFE (25%) |
| Vitamin B12 (as Methylcobalamin) | 6 mcg (250%) |
| Calcium | 75 mg (6%) |
| Phosphorus (as Dipotassium Phosphate) | 75 mg (6%) |
| Magnesium (as Magnesium Citrate) | 20 mg (5%) |
| Chloride (from Sea Salt) | 340 mg (15%) |
| Sodium (from Sea Salt) | 225 mg (10%) |
| Potassium (as Dipotassium Phosphate) | 190 mg (4%) |
| CarnoSyn® Beta-Alanine | 3.2g |
| L-Citrulline | 3g |
| L-Arginine | 3g |
| BetaPower® Betaine Anhydrous | 1.25g |
| PeptiPump® Bioactive Lentil Peptides | 200mg |
| Creatine Nitrate (as NO3-T®) | 1.5g |
| L-Tyrosine | 1g |
| Caffeine Anhydrous | 300mg |
| Dynamine™ (as Methylliberine) | 50mg |
| TeaCrine® (as Theacrine) | 10mg |
| Toothed Clubmoss (Huperzia serrata) aerial parts extract (std. 1% Huperzine A) | 5mg |
| Rauwolfia vomitoria root bark extract | 1mg |
Only nutrients printed on the captured Supplement Facts panel are shown; omitted calories, carbohydrates, vitamins, or minerals were not listed on that label.
Other Ingredients for Icy Blue Razz
Malic Acid, Citric Acid, Calcium Silicate, Silicon Dioxide, Natural & Artificial Flavors, Sucralose, Acesulfame Potassium, Spirulina Extract (color).
Artificial dyes: None
Sweeteners: sucralose, acesulfame potassium
Label captured Oct 8, 2026 from the manufacturer's label (opens in new window) from the uploaded label image (opens in new window). Every line human-reviewed against the label on Oct 8, 2026.
Lowest-available price history
Lowest in-stock price found per week, across every tracked store except Amazon.
View price history data
| Week | Lowest price |
|---|---|
| Sep 28, 2026 | $39.99 |
| Oct 5, 2026 | $39.99 |
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