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C4 Ultimate Shred Icy Blue Razz

Cellucor
4.6
★ ★ ★ ★ ★
(177 ratings)
Niacin 60 mg
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Score60
A substantial multi-ingredient pre-workout with useful disclosed performance doses, limited by an opaque thermogenic matrix and poor value for niacin specifically.
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Quantity:350 Gram(s) • (20 servings)
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Score 60

A substantial multi-ingredient pre-workout with useful disclosed performance doses, limited by an opaque thermogenic matrix and poor value for niacin specifically.
How scoring works
$0.00($0.00 per serving)
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Analysis

Citrulline malate, beta-alanine, betaine, Nitrosigine, and taurine provide the main performance rationale. Niacinamide contributes vitamin B3 support but is not the reason to choose this formula.

Several core performance amounts are disclosed, which helps judge the workout-focused ingredients. The thermogenic matrix is not itemized in the supplied data, leaving its stimulant and tolerance profile uncertain.

It fits experienced pre-workout users who can verify the current full label and assess each component. It is poor value as a niacin supplement and far more complex than needed for basic B3 intake.

Who is it for
  • Experienced pre-workout users
  • Adults seeking pump and endurance ingredients
  • People able to verify the thermogenic blend
Best for
  • Pre-workout performance support
  • Muscular endurance
  • Workout-focused blood-flow support

Pros

  • Substantial citrulline malate amount
  • Beta-alanine and betaine are clearly quantified
  • Several B-vitamin forms are identified

Cons

  • Thermogenic matrix is not itemized
  • Expensive for niacin-specific use
  • Complex formula raises tolerance uncertainty

Warnings

  • Beta-alanine can cause temporary tingling or skin prickling
  • Black pepper extract can alter absorption of some medicines
  • Verify the thermogenic matrix for stimulants before combining with coffee or other pre-workouts
  • The folate amount should be included when tracking other fortified supplements

Nutrient quality

76 High impact

Several performance ingredients use credible forms at meaningful amounts. The hidden thermogenic matrix and aggressive multi-ingredient design limit safety and balance.

Ingredient transparency

48 Lower impact

Most stated amounts and the serving size are clear without a conventional proprietary blend. Form ambiguity, overlapping entries, or missing non-active ingredients leave important label gaps.

Customer satisfaction

58 Moderate impact

The average rating is generally favorable, with a limited review count supporting the signal. No detailed reviews are supplied to assess repeated complaints or intended-use experiences.

Value for money

57 Moderate impact

Substantial performance doses support some formula quality. A short supply and opaque stimulant-oriented blend make value difficult to justify.

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Ingredients

IngredientAmount per serving
Calories
0 Calorie(s)
Total Carbohydrates
1 Gram(s)
Vitamin C (Ascorbic Acid)
 250 mg
Niacin (Niacinamide)
 60 mg
Vitamin B6 (Pyridoxal 5-Phosphate)
 1 mg
Folic Acid
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 OverallScore60
C+ Active Ingredient Quality & BioavailabilityB- Dose, Safety & Label TransparencyF Value

Niacinamide is clearly disclosed at a higher supporting amount than in many pre-workouts. It is still not a direct NAD+ precursor and lacks specialized delivery. The expensive serving and large performance matrix make the product poor value for niacin specifically.

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81 Performance

B-Complex with Folic Acid plus Vitamin C

Nature's Bounty
<p>A broad B-complex with vitamin C provides practical daily B-vitamin coverage at very low serving cost. Compared with the original, it removes opaque stimulant and thermogenic matrices and makes the active vitamin exposure easier to assess; however, several forms are conventional, thiamine entries are duplicated, and it is not a dedicated niacin or performance formula; it is not a one-for-one pre-workout replacement.</p>
80 Performance

B-Complex plus Vitamin C

21st Century
<p>Vitamin C and several core B vitamins provide inexpensive general energy-metabolism support. Compared with the original, it removes opaque stimulant and thermogenic matrices and makes the active vitamin exposure easier to assess; however, the formula omits folate, vitamin B12, and biotin and is not a dedicated niacin or pre-workout product; it is not a one-for-one pre-workout replacement.</p>
80 Performance

Super Vitamin B-Complex

Spring Valley
<p>Broad measured B-vitamin coverage offers accessible everyday value and a simple alternative to opaque blends. Compared with the original, it removes opaque stimulant and thermogenic matrices and makes the active vitamin exposure easier to assess; however, chemical forms are not identified, thiamine is unnecessarily high, and it is not a one-for-one performance formula; it is not a one-for-one pre-workout replacement.</p>
86 Budget

Niacinamide B-3 100 mg

Source Naturals
<p>A clearly identified moderate niacinamide tablet offers simple non-flushing vitamin B3 support with excellent serving economics. Serving cost is lower than the original, but it does not provide nicotinic acid’s lipid-focused effects and complete excipient details are missing.</p>
82 Budget

Niacin 100 mg

Nature's Way
<p>Clearly identified nicotinic acid supplies a modest, inexpensive vitamin B3 serving with direct form transparency. Serving cost is lower than the original, but immediate release can still cause temporary flushing and the dose is not intended for intensive cardiovascular use.</p>
80 Budget

Niacinamide 500 mg

Best Naturals
<p>Clearly identified niacinamide provides a non-flushing option with useful skin and NAD-metabolism alignment. Serving cost is lower than the original, but the amount is well above basic nutritional needs and is not equivalent to nicotinic acid for lipid-focused use.</p>
85 Value

Niacin 100 mg

Source Naturals
<p>A moderate niacinamide tablet provides clearly identified vitamin B3 without typical nicotinic-acid flushing. Its lower serving cost and clearer active design support practical value compared with the original, although the form is intended for nutritional or skin support rather than lipid-focused effects.</p>
80 Value

Niacin 50 mg

Carlson
<p>A clearly named low-dose nicotinic acid tablet provides economical and easy-to-assess vitamin B3 support. Its lower serving cost and clearer active design support practical value compared with the original, although the amount is too low for focused cardiovascular use and can still cause flushing.</p>
82 Value

Niacin 100 mg

Bluebonnet
<p>Clearly identified nicotinic acid provides a meaningful low-dose option in a simple long-supply capsule. Its lower serving cost and clearer active design support practical value compared with the original, although noticeable flushing remains possible and people sensitive to liver, glucose, or blood-pressure effects should choose carefully.</p>
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