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C4 Original Icy Blue Razz

Cellucor
4.6
★ ★ ★ ★ ★
(9587 ratings)
Niacin 30 mg
Arginine Alpha Ketoglutarate 1 Gram(s)
Folate 250 mcg
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Score64
A familiar pre-workout base offers moderate performance support, but several doses are modest. The hidden energy blend is the main weakness because total stimulant exposure cannot be assessed.
How scoring works
Quantity:390 Gram(s) • (60 servings)
Goals:
Energy

Score 64

A familiar pre-workout base offers moderate performance support, but several doses are modest. The hidden energy blend is the main weakness because total stimulant exposure cannot be assessed.
How scoring works
$49.99($0.83 per serving)
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Analysis

CarnoSyn beta-alanine at 1.6 g may support repeated high-intensity work, but it is about half of a commonly used full daily amount. Creatine nitrate and arginine AAKG are each supplied at 1 g, making them supporting rather than comprehensive performance doses.

Vitamin C, niacinamide, active B6, folate, and methylcobalamin add clearly listed micronutrients. The energy blend is proprietary, so caffeine content and any additional stimulant compounds cannot be verified.

The 60-serving container offers reasonable long-supply value for users who want a moderate performance base. Caffeine-sensitive users and evening trainees have no reliable way to predict intensity or sleep impact.

Who is it for
  • Regular pre-workout users
  • Adults seeking moderate workout support
  • People who tolerate stimulant blends
Best for
  • Workout energy
  • Muscular endurance support
  • Early-day training

Pros

  • Uses branded CarnoSyn beta-alanine
  • Includes creatine nitrate and arginine AAKG
  • Uses active B6 and methylcobalamin
  • 60 servings per container

Cons

  • Energy-blend ingredients are hidden
  • Caffeine amount is not disclosed
  • Beta-alanine amount is modest
  • Creatine nitrate and arginine AAKG are lightly dosed

Warnings

  • The proprietary energy blend may contain enough stimulant activity to cause jitters, anxiety, rapid heartbeat, or lost sleep.
  • Avoid stacking it with coffee, energy drinks, or other pre-workouts because total caffeine exposure is not disclosed.
  • Beta-alanine may cause temporary tingling or skin prickling, even at the 1.6 g amount.

Nutrient quality

68 High impact

Several useful forms and disclosed performance actives fit acute exercise energy. Modest beta-alanine, creatine nitrate, and AAKG amounts plus hidden stimulant dosing limit depth and safety confidence.

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Ingredient transparency

55 Moderate impact

Most visible actives have amounts, but the energy blend hides its stimulant identity and doses. Complete use directions and non-active powder ingredients are not supplied.

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Customer satisfaction

71 High impact

The supplied average is strong, and the rating count is very large. Specific firsthand feedback is absent, so recurring complaints and purpose fit cannot be assessed.

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Value for money

67 High impact

The serving cost is reasonable for several disclosed performance actives. Hidden stimulant dosing prevents a stronger value judgment.

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Goals

Energy
Impact
High effect
A- Goal FitC Strength of SupportB- CoverageC Formula Quality
Vitamin B12 · 35 mcgCreatine · 1 Gram(s)

The pre-workout blend may increase acute alertness and exercise capacity rather than steady daily energy. Beta-alanine, creatine nitrate, arginine alpha-ketoglutarate, B vitamins, and an energy blend cover several performance pathways.

Key disclosed performance actives are below common full amounts, while the proprietary blend hides stimulant identity and dose. The formula offers useful breadth but lacks the transparency and balanced depth needed for reliable sustained-energy support.

Study evidence
Creatine Supportive 49 studies

Ingredients

IngredientAmount per serving
Calories
0 Calorie(s)
Total Carbohydrates
1 Gram(s)
Vitamin C (Ascorbic Acid)
250 mg
Niacin (Niacinamide)
30 mg
Vitamin B6 (Pyridoxal 5-Phosphate)
500 mcg
Folic Acid
250 mcg
Vitamin B12 (Methylcobalamin)
35 mcg
Calcium (Calcium Silicate)
24 mg
CarnoSyn (Beta-Alanine)
1.6 Gram(s)
Creatine Nitrate
1 Gram(s)
Arginine Alpha Ketoglutarate
1 Gram(s)
Explosive Energy Blend
425 mg
Adults 18–50
Report overview
Niacin (Niacinamide) · 30 mg OverallScore56
C Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyF Value

The pre-workout clearly discloses niacinamide, but that form does not offer a targeted advantage for its performance positioning. Its powder delivery is immediate and the niacin amount is modest for a dedicated niacinamide product. The high serving cost makes it poor value when judged for niacin alone.

D+ Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyD- Value

The label uses generic arginine alpha-ketoglutarate without confirming the L-isomer or molecular ratio. Its clearly disclosed amount reaches the collection median but remains below the preferred performance range. The moderate cost per active gram is reasonable, while the proprietary energy blend prevents a full stimulant-safety review.

Folate · 250 mcg OverallScore40
F Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyF Value

Synthetic folic acid supplies folate but requires conversion before the body can use it. The listed amount is aligned with the preferred intake range. Vitamin B12 is included at a dose that supports the stated co-supplementation safeguard. A high serving cost weakens its appeal as a folate-focused option.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Pharmacokinetics, safety, and effects on exercise performance of L-arginine alpha-ketoglutarate in trained adult men
    Bill Campbell, Mike Roberts, Chad Kerksick, Colin Wilborn, Brandon Marcello, Lem Taylor, Erika Nassar, Brian Leutholtz, Rodney Bowden, Chris Rasmussen, Mike Greenwood, Richard Kreider · Nutrition · 2006
    Randomized trial35 participantsEnergy forArginine Alpha Ketoglutarate
  2. Synergistic effects of creatine, carbs, protein on repeated sprint performance.
    Wang Y; Wei H; Cheng X; Chen Z · Scientific reports · 2026
    Randomized trial60 participantsEnergy forCreatine
  3. The Effects of Creatine Monohydrate Supplementation on Recovery from Eccentric Exercise-Induced Muscle Damage: A Double-Blind, Randomized, Placebo-Controlled Trial Considering Sex and Age Differences.
    Yamaguchi S; Inami T; Nishioka T; Morito A; Ishiyama K; Murayama M · Nutrients · 2025
    Randomized trial40 participantsEnergy forCreatine
  4. The Effect of Prior Creatine Intake for 28 Days on Accelerated Recovery from Exercise-Induced Muscle Damage: A Double-Blind, Randomized, Placebo-Controlled Trial.
    Yamaguchi S; Inami T; Ishida H; Morito A; Yamada S; Nagata N; Murayama M · Nutrients · 2024
    Randomized trial20 participantsEnergy forCreatine
  5. Creatine supplementation attenuates the rate of fatigue development during intermittent isometric exercise performed above end-test torque.
    Abdalla LHP; Broxterman RM; Greco CC; Denadai BS · Experimental physiology · 2021
    Randomized trial16 participantsEnergy forCreatine
  6. The effect of continuous low dose creatine supplementation on force, power, and total work.
    Burke DG; Silver S; Holt LE; Smith Palmer T; Culligan CJ; Chilibeck PD · International journal of sport nutrition and exercise metabolism · 2000
    Randomized trial41 participantsEnergy forCreatine