C4 Ultimate Shred Lemon Italian Ice

C4 Ultimate Shred Lemon Italian Ice

Cellucor4.8 (118 ratings)
Format:Powder Quantity: 350 Gram(s) · 20 servings
$49.99 $2.49 per serving
iHerb$49.99

About this product

The formula is built around pre-workout and thermogenic ingredients rather than niacin nutrition. Niacinamide contributes B3 with little classic flush risk, but its amount is modest for focused use.

Several performance ingredients are disclosed, while the thermogenic blend remains hidden. That opacity prevents a confident assessment of stimulant strength, ingredient balance, and individual tolerability.

The powder may fit experienced users who want its broader pre-workout profile and enjoy the lemon flavor. Anyone shopping mainly for niacin can get a simpler, more transparent formula with less unrelated exposure.

Who is it for
  • Experienced pre-workout users
  • Adults specifically seeking a stimulant-style powder
Best for
  • Pre-workout use rather than niacin supplementation
  • Users who accept proprietary thermogenic blends

Pros

  • Niacinamide has low classic flush potential
  • Powder format allows a drink-based serving
  • Several non-blend actives are disclosed

Cons

  • Thermogenic blend hides individual doses
  • Poor value as a niacin source
  • Niacin is only a secondary ingredient

Warnings

  • Hidden thermogenic doses make stimulant exposure and sensitivity harder to predict
  • Avoid combining it with other stimulant or thermogenic products when total exposure is unclear
  • The broader pre-workout formula may not suit people sensitive to stimulants

Product analysis

57 out of 100
Niacinamide adds modest B3 support, but an opaque thermogenic blend makes this a poor and unnecessarily complex choice for focused niacin use.

AI assessment of the formula, label and price. How scoring works

Nutrient quality74

Several performance actives use specific and well-regarded forms, including CarnoSyn and Nitrosigine. Citrulline malate, beta-alanine, betaine, taurine, and Nitrosigine have substantial amounts.

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Ingredient transparency54

Major performance actives are quantified, but the thermogenic matrix has no internal doses. The flavoring, sweeteners, carriers, and complete inactive ingredient list were not supplied.

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Customer satisfaction64

The available aggregate rating is reasonably strong for this category. No firsthand outcome details were supplied, so alignment with the intended use is uncertain.

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Value for money35

Meaningful performance doses add quality, but the hidden matrix weakens price justification. The product is less competitive than transparent pre-workouts with lower serving costs.

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Format
Powder
Container
350 Gram(s)
Per serving
$2.49
Also available
C4 Ultimate Shred Strawberry WatermelonB3 60 mg • 350 Gram(s) • 20 servings$49.99
Customer rating
4.8 · 118 ratings
Report analysis

Ingredients

IngredientAmount per servingScore
Calories
0 Calorie(s)
Total Carbohydrates
1 Gram(s)
Vitamin C (Ascorbic Acid)
 250 mg
Niacin (Niacinamide)
 60 mg 65
Vitamin B6 (Pyridoxal 5-Phosphate)
 1 mg
Folate
833 mcg DFE
Vitamin B12 (Methylcobalamin)
 70 mcg
Calcium
100 mg
Citrulline Malate
6 Gram(s)
CarnoSyn Beta Alanine
3.2 Gram(s)
Betaine Anhydrous
1.5 Gram(s)
Nitrosigine
1.5 Gram(s)
C4 Ultimate Shred & Thermogenic Matrix
1.33 Gram(s)
Taurine
1 Gram(s)
BioPerine (Black Pepper Fruit Extract)
 5 mg
Adults 18–50 Women
Report overview
Niacin (Niacinamide) · 60 mg OverallScore65
A- Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyF Value
C4 Ultimate Shred Lemon Italian Ice lists 60 mg of niacinamide in a powder serving. The label gives the amount and form, but the saved facts don't record a flush warning or no-flush claim. Its cost per serving is high for the stated niacin amount.
How this ingredient is rated

Active Ingredient Quality & Bioavailability86

Niacinamide is the named form, with no separate precursor source listed.
Niacin Form & Goal Alignment
The product lists niacinamide as its form.
Precursor Source Quality
The saved facts identify niacinamide as the source.

Dose, Safety & Label Transparency67

The amount and form are disclosed, but the saved facts include no flush-related statement.
Clarity of Chemical Form
The label identifies the ingredient as niacinamide.
Form-Specific Dosage Efficacy
A powder serving lists 60 mg of niacinamide.
Flush Risk & Safety Labeling
The saved facts don't record a flush warning or no-flush claim.

Value20

The serving cost is high.
Price Per Effective Serving
The cost per serving is high for the listed niacin amount.
View ingredientView products
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82 Performance

Sustained-Release Niacin with niaXtend 500 mg

Doctor's Best
Sustained-release nicotinic acid provides a clearly named form and controlled delivery, though the high amount still carries liver-related risk and needs safety guidance. It cannot replace citrulline, beta-alanine, betaine, taurine, or Nitrosigine, but it avoids the original hidden thermogenic matrix.
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No Flush Niacin (Inositol Hexanicotinate) 800 mg

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85 Budget

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80 Budget

Super Vitamin B-Complex

Spring Valley
Broad measured B-vitamin coverage offers strong value, though unspecified chemical forms and unnecessarily high thiamine limit refinement. It cannot replace citrulline, beta-alanine, betaine, taurine, or Nitrosigine, but it avoids the original hidden thermogenic matrix.
81 Budget

B-Complex with Folic Acid plus Vitamin C

Nature's Bounty
A broad B-complex with vitamin C provides low-cost daily coverage, while conventional forms and duplicated thiamine entries reduce form quality. It cannot replace citrulline, beta-alanine, betaine, taurine, or Nitrosigine, but it avoids the original hidden thermogenic matrix.
82 Value

Niacin 100 mg

Nature's Way
Clearly identified immediate-release nicotinic acid provides a modest and inexpensive niacin serving, but temporary flushing remains likely. It cannot replace citrulline, beta-alanine, betaine, taurine, or Nitrosigine, but it avoids the original hidden thermogenic matrix.
80 Value

Niacinamide 500 mg

21st Century
A simple non-flushing niacinamide formula offers strong serving value, though the amount is well above basic nutritional needs. It cannot replace citrulline, beta-alanine, betaine, taurine, or Nitrosigine, but it avoids the original hidden thermogenic matrix.
80 Value

No-Flush Niacin (Inositol Hexanicotinate) 500 mg

Solgar
Inositol hexanicotinate provides clearly named no-flush niacin exposure with practical value, while its effects may be less direct than nicotinic acid. It cannot replace citrulline, beta-alanine, betaine, taurine, or Nitrosigine, but it avoids the original hidden thermogenic matrix.
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