ProveIt Supplements

Independent, evidence-based supplement analysis.

✓ Not Sponsored

✓ No Paid Reviews

✓ Science-Based

Company

  • About Us
  • Our Methodology
  • Contact
  • Blog
  • Authors

Legal

  • Privacy Policy
  • Terms of Service
  • Medical Disclaimer
  • Affiliate Disclosure

Resources

  • All Categories
  • Ingredient Database
  • Browse Supplements
  • FAQ

© 2025 ProveIt Supplements. All rights reserved.

Medical Disclaimer: The information provided is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen.

Prove It
Browse SupplementsBlogAuthorsAboutMethodologyFAQ
Get Your Personalized Supplement StackSupplement Stack Quiz
Menu
HomeBrowse SupplementsBlogAuthorsAboutMethodologyFAQ
C4 Original Rainbow Blast

C4 Original Rainbow Blast

CELLUCOR

#Pre-Workout
73
Safety80
Efficacy65
Transparency85
Based on Examine, Wikipedia, and 23 other sources

Overview

C4 Original Rainbow Blast combines several ingredients known to enhance exercise performance, including beta-alanine, creatine nitrate, and caffeine. The addition of vitamins B6, B12, C and folic acid provide further support for general health and metabolism. However, the use of proprietary blends obscures the exact dosages of key ingredients, making it difficult to assess the product's overall effectiveness. The relatively low dose of caffeine may also be a limiting factor for experienced pre-workout users, while the inclusion of Theacrine could provide a more sustained energy effect.

The Good

Contains Beta-Alanine, which enhances muscular endurance by increasing muscle carnosine levels.

Includes Creatine Nitrate, which may improve power output and muscle energy production.

Provides Vitamins C, B6, B12, and Folic Acid, supporting general health and energy metabolism.

The Bad

Relatively low doses of L-Citrulline and Caffeine Anhydrous may not provide optimal ergogenic effects for some users.

Proprietary blends (Muscular Endurance & Performance Blend, Velox® Patented Performance Blend, and Energy & Focus Complex) obscure specific ingredient dosages, making it difficult to fully assess efficacy.

Creatine Nitrate is under-researched compared to creatine monohydrate; its effectiveness may not be as pronounced.

Is it for you?

Best For: Athletes, fitness enthusiasts, individuals seeking energy and focus for workouts

Skip If: Sensitive to caffeine, pregnant/nursing, have heart conditions, or high blood pressure

Ingredients Analysis

Includes 0g Added Sugars

0 g

Vitamin C (as Ascorbic Acid)

1000 mcg RAE

Vitamin B6 (as Pyridoxal-5-Phosphate)

6 mcg

Folic Acid (as Methylcobalamin)

225 mcg DFE

Vitamin B12 (as Methylcobalamin)

4.5 mcg

Choline (as Choline Bitartrate)

1.2 g

Muscular Endurance & Performance Blend

4 g

CarnoSyn® Beta-Alanine

1.6 g

Creatine Nitrate (as NO3-T®)

1 g

Arginine AKG

1 g

Velox® Patented Performance Blend

205 mg

L-Citrulline

100 mg

Caffeine Anhydrous

100 mg

Energy & Focus Complex

5 mg

Theacrine as TeaCrine

5 mg

Huperzia serrata aerial parts extract

0 mg

How to Use

Mix one scoop with 6-8 fl. oz. of water 20-30 minutes before training. Do not exceed two scoops per day.

Frequency:

Daily (on workout days)

Best Time:

Before workout

When:

On an empty stomach or light meal

Who Should Use This

Best For:

Athletes, fitness enthusiasts, individuals seeking energy and focus for workouts

Similar Products

Ascorbic Acid by Thorne

Ascorbic Acid

Thorne

Ester-C 500 mg With Citrus Bioflavoinds Timed Release by American Health

Ester-C 500 mg With Citrus Bioflavoinds Timed Release

American Health

Vitamin C by Source Naturals

Vitamin C

Source Naturals

Vitamin C (as Ascorbic Acid) by Earth's Bounty®

Vitamin C (as Ascorbic Acid)

Earth's Bounty®

Vitamin C (as Ascorbic Acid) 500 mg by Nature's Bounty®

Vitamin C (as Ascorbic Acid) 500 mg

Nature's Bounty®

Natural Vitamin C (as Ascorbic Acid) by GummieJeff™

Natural Vitamin C (as Ascorbic Acid)

GummieJeff™

Recommended Articles

Supplement Safety: Testing for Heavy Metals & Pesticides

Supplement Safety: Testing for Heavy Metals & Pesticides

Testing supplements for heavy metals and pesticides is crucial for consumer safety, with organizations like USP and NSF providing certifications to indicate rigorous testing.

Fish Oil Before Surgery: Bleeding Risks & Guidelines

Fish Oil Before Surgery: Bleeding Risks & Guidelines

Recent studies show fish oil doesn't significantly increase bleeding risk before surgery, though cessation advice varies.

Safe Nootropic Stacking for Focus

Stacking nootropics can improve focus if done safely, considering dosages and sleep impact.

CBD for Anxiety: 2025 Clinical Trials Insight

CBD for Anxiety: 2025 Clinical Trials Insight

Recent clinical trials up to 2025 show promising results of CBD in reducing anxiety symptoms safely.