

C4 Original Rainbow Blast
CELLUCOR
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
Vitamin C (as Ascorbic Acid)
1000 mcg RAEFolic Acid (as Methylcobalamin)
225 mcg DFEArginine AKG
1 gL-Citrulline
100 mgCaffeine Anhydrous
100 mgHow to Use
Mix one scoop with 6-8 fl. oz. of water 20-30 minutes before training. Do not exceed two scoops per day.
Daily (on workout days)
Before workout
On an empty stomach or light meal
Who Should Use This
Best For:
Similar Products
Recommended Articles

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