C4 Ultimate by Cellucor C4

Dan BorysDan BorysContent ManagerAJ SulcAJ SulcWriterPrices last checkedOct 26, 2026

Lowest Price Found

Buy for $39.99

Cellucor

30-Second Review

C4 Ultimate by Cellucor C4 is a high-stim pre-workout. The tub you can buy on the way to the gym. One scoop is 300mg of caffeine, 3.2g of beta-alanine, 3g of L-citrulline, 3g of arginine, and 1.5g of creatine nitrate. It is not a 6g citrulline formula.

300mg of caffeine, 3.2g of beta-alanine, and 1.5g of creatine nitrate are easy to see on the label. You can pick it up in a store the same day. The tub is $39.99 for 20 servings, about $2.00 each. The limit is that 3g of citrulline is underdosed for a pump formula.

Disclaimer: This is an independent editorial analysis. No brand paid for this score.

C4 Ultimate pre-workout tub
C4 Ultimate

Cellucor C4

High-Stim300mg caffeine
7.8

Rating Breakdown

Price & Value6.0
Ingredients & Blend7.6
Brand Reputation8.8
Review Scan8.6
Final Overall Score7.8

$2.00 / serving · 20 servings / container

Pros

  • 300mg of caffeine, 3.2g of beta-alanine, and 1.5g of creatine nitrate are easy to see on the label
  • You can pick it up in a store the same day

Cons

  • 3g of citrulline is underdosed for a pump formula
  • 1mg of rauwolfia is a harsh add-on on top of 300mg of caffeine

Label Snapshot

Caffeine300mg
Beta-Alanine3.2g
L-Citrulline3g
L-TheanineNone
CreatineNone

Flavors

Frozen Bombsicle, Icy Blue Razz, Hawaiian Punch Fruit Juicy Red

Where to buy

5 stores we checked on Oct 26, 2026, best price per serving first. Prices change often, so the price at checkout is the one that counts.

Best price per serving
Cellucor46 reviews at CellucorThese stars are how shoppers rated this product on the brand's own website. Brands collect and show their own reviews, so their scores often run higher than at big stores. Amazon doesn't let other sites show its ratings, so the Amazon row has none. Checked Oct 26, 2026.
Available flavors

Frozen Bombsicle, Icy Blue Razz, Hawaiian Punch Fruit Juicy Red

cellucor.comOfficial Brand Store
Buy for $39.99$2.00 / serving
Amazon
Available flavors

Strawberry Watermelon, Blue Raspberry, Frozen Bombsicle, Hawaiian Punch Fruit Juicy Red, Jolly Rancher Cherry

amazon.com
Buy for $39.99$2.00 / serving
Walmart162 reviews at WalmartThese stars are how shoppers rated this product at Walmart. They rate the product, not the store. Amazon doesn't let other sites show its ratings, so the Amazon row has none. Checked Oct 26, 2026.
Available flavors

Icy Blue Razz

walmart.com
Buy for $39.99$2.00 / serving
The Vitamin Shoppe
Available flavors

Jolly Rancher Cherry, Hawaiian Punch Fruit Juicy Red

vitaminshoppe.com
Buy for $39.99$2.00 / serving
iHerb43 reviews at iHerbThese stars are how shoppers rated this product at iHerb. They rate the product, not the store. Amazon doesn't let other sites show its ratings, so the Amazon row has none. Checked Oct 26, 2026.
Available flavors

Frozen Bombsicle, Fruit Juicy Red, Icy Blue Razz, Jolly Rancher Cherry

iherb.com
Buy for $41.19$2.06 / serving

We may earn a commission when you buy through these links, at no extra cost to you. It never changes a score. How we make money

Tub price history

Lowest price we have written down

$37$38$39$40$41$42OctNov

About the brand

The company behind C4 Ultimate

Brand name
Cellucor C4
Parent company
Nutrabolt
Founded
2002
Key people
Doss Cunningham, Andrew Archambault
Headquarters
Austin, Texas

C4 Ultimate video reviews

From other creators on YouTube. We don't make these videos or pay for them.

C4 Ultimate Stats

How its label, price and reviews stack up against the 158 pre-workout tubs we rank.

Supplekings Score

Solid7.8
Higher than 60% of tubsAverage 7.6
  • Price & Value0.96.0
  • Ingredients & Blend0.17.6
  • Brand Reputation0.88.8
  • Review Scan0.88.6

Shopper Rating

4.5/5

251 reviews at Cellucor, Walmart, iHerb

Sold At

At a Glance

Type
High-stim pre-workout
Caffeine
300mg
Stim level
High
Servings per tub
20
Flavors
3
Prices checked
Oct 26, 2026

Label Doses

Next to other pre-workout tubs. This one is the bright bar.

CaffeineMore than 44% of tubs
300mg
124mgTypical 300mg420mg+
CitrullineMore than 4% of tubs
3g
2gTypical 6g10g
Beta-AlanineMore than 36% of tubs
3.2g
1.6gTypical 3.2g6.4g+
Creatine Nitrate
1.5g

Price Stats

Cheapest on the left. This one is the bright bar.

Per servingCheaper than 26% of tubs
$2.00
$0.67Typical $1.50$3.00+
Per 100mg of caffeineCheaper than 30% of tubs
$0.67
$0.27Typical $0.56$1.33+
Lowest price for 20 servings
$39.99 at 4 stores
Change since Oct 22, 2026
No change

C4 Ultimate FAQ

How much caffeine is in C4 Ultimate?

Each serving of C4 Ultimate has 300mg of caffeine, more than 44% of the 122 pre-workout tubs we rank that list an amount. That makes it a high-stim pre-workout (250-349mg), where it ranks #16 of 42.

What's on the C4 Ultimate label?

The doses we track are 3g of citrulline (more than 4% of the 91 that list it), 3.2g of beta-alanine (more than 36% of the 107 that list it), and 1.5g of creatine nitrate.

How much does C4 Ultimate cost per serving?

The lowest price we found is $39.99 for 20 servings, or $2.00 per serving. That's cheaper than 26% of the 158 pre-workout tubs we rank, where the typical one costs $1.50.

Where can you buy C4 Ultimate?

We checked 5 stores on Oct 26, 2026: Cellucor, Amazon, Walmart, iHerb, and The Vitamin Shoppe. It comes in 3 flavors.

How do shoppers rate C4 Ultimate?

Shoppers give C4 Ultimate an average of 4.5 out of 5 across 251 reviews at Cellucor, Walmart, and iHerb. Our Review Scan score for it is 8.6 out of 10.

Who makes C4 Ultimate?

Cellucor C4 makes C4 Ultimate. Its parent company is Nutrabolt. The brand was founded in 2002 and is based in Austin, Texas. We rank 14 Cellucor C4 products, averaging 7.6 out of 10.

How does C4 Ultimate score?

We score it 7.8 out of 10, #56 of 199 pre-workouts. Its strongest rating is Brand Reputation 8.8 and its weakest is Price & Value 6.0.

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