Ultra vs C4 Ultimate Comparison
See a side-by-side comparison of ingredients, stats, and community sentiment.
Ultra by Infinis Nutrition offers a higher caffeine intensity at 353mg, while C4 Ultimate by Cellucor is the more popular option with three times the community mentions and a focus on initial performance.
Go with Ultra if...
- •You want a higher caffeine dosage of 353mg
- •You prefer a niche brand over mainstream options
In StockCoupon Available
Go with C4 Ultimate if...
- •You value brand popularity and community recognition
- •You want a formula specifically noted for strong initial performance
- •You prefer a slightly lower caffeine intake of 300mg
Out of Stock

Ultra
infinis nutrition

C4 Ultimate
cellucor
Compare
Ultra
C4 Ultimate
Stimulants
Total Caffeine
353 mg
300 mg
Exotic Stimulants
Contains Yohimbe
Community
Community Approval
100%
100%
Total Mentions
1
3
Where to Buy Ultra
NutriCartel
Ships from:🇺🇸 United States
$59.99
In Stock
Updated 16h ago
Get 15% off your order
Where to Buy C4 Ultimate
Muscle Factory SC
Ships from:🇺🇸 United States
$39.99
Out of Stock
Updated 18h ago
Caffeine
353 mg
Exotic Stims
No
Contains Yohimbe
No
Community Approval
100%
Mentions
1
Caffeine
300 mg
Exotic Stims
No
Contains Yohimbe
No
Community Approval
100%
Mentions
3
Where to Buy Ultra
NutriCartel
Ships from:🇺🇸 United States
$59.99
In Stock
Updated 16h ago
Get 15% off your order
Where to Buy C4 Ultimate
Muscle Factory SC
Ships from:🇺🇸 United States
$39.99
Out of Stock
Updated 18h ago
Ingredient Label
Ingredient Label
No pros/cons analysis available
Pros
- C4 Ultimate is considered a superior choice by users.
- It offers strong initial performance, comparable to other top-tier supplements.
Cons
- A drawback of C4 Ultimate is the uncertainty regarding its sustained effects throughout the day.
Comparison Summary
Ultra provides a more potent caffeine dose of 353mg, whereas C4 Ultimate is a more widely recognized intermediate supplement with 300mg of caffeine. Ultra is designed for users seeking a higher-stimulant niche product, while C4 Ultimate targets those who prioritize established brands and immediate performance results.
Key Differences:
- Caffeine Content: Ultra (353 mg) vs C4 Ultimate (300 mg)
- Popularity: Ultra (1 community mention) vs C4 Ultimate (3 community mentions)
Key Similarities:
- Product Level: Both supplements are categorized as intermediate-level formulas.
- Exotic Stimulants: Neither product contains exotic stimulants in its formulation.
- User Sentiment: Both products have high user sentiment.