Product Image

C4 Original Icy Blue Razz

Cellucor
4.6
★ ★ ★ ★ ★
(9588 ratings)
Niacin 30 mg
Arginine Alpha Ketoglutarate 1 Gram(s)
Folate 250 mcg
Product Image
Score63
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:195 Gram(s) • (30 servings)
Goals:
Energy

Score 63

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
$29.99($0.99 per serving)
Amazon
$ 29.99
iHerb
$ 29.99
Vitacost
$ 30.99
Report prices

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 30-serving container offers moderate serving 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
  • 30 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.

.

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.

.

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.

.

Value for money

62 Moderate impact

The serving cost is acceptable but not especially compelling for the disclosed doses. Opaque stimulant dosing reduces confidence in effective value.

.
Report analysis

Goals

Energy
Impact
Moderate effect
B- Goal FitD Strength of SupportC CoverageC Formula Quality
Vitamin B12 · 35 mcg

The formula may support short-term workout energy through an energy blend, creatine nitrate, B vitamins, beta-alanine, and AAKG. It covers several useful pathways, though the acute-alertness ingredients and their individual amounts remain hidden.

Most named performance ingredients are supplied below commonly used stand-alone amounts, reducing confidence in stamina or sustained-energy benefits. The 425 mg blend may contain stimulants, so stimulant-sensitive users cannot gauge their exposure or the risk of sleep disruption.

Study evidence

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)
NO3-T (Creatine Nitrate)
1 Gram(s)
Arginine Alpha Ketoglutarate
1 Gram(s)
Explosive Energy Blend
425 mg
Adults 18–50 Women
Report overview
Niacin (Niacinamide) · 30 mg OverallScore73
B+ Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyF Value

Niacinamide fits a general multinutrient role but is not a targeted heart or NAD precursor form. The 30 mg amount fits the preferred multivitamin range. The formula is costly relative to its routine niacin contribution, while niacinamide has low flush potential, although the product is not explicitly labeled no-flush.

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

The AAKG form is generic and does not confirm the preferred L-isomer or molecular ratio. The clearly disclosed amount matches the collection median but remains below the performance-focused range. Cost efficiency is moderate for the active amount delivered.

Folate · 250 mcg OverallScore30
F Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyF Value

The 250 mcg serving uses synthetic folic acid, which requires more conversion than active folate forms. Missing DFE conversion weakens label transparency. Methylcobalamin is present above the preferred threshold, but the pre-workout formula is not a focused folate supplement.

Loading alternative details
Report alternatives

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