C4 Ultimate Pre-Workout

C4 Ultimate Pre-Workout

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  • Pre-workout supplement with 300 mg of caffeine
  • 4 available flavors
  • Contains beta-alanine, L-citrulline, creatine, and taurine
  • Claims to help improve alertness, muscular performance, and muscular endurance
Manufacturer: Categories: ,

In-Depth Review

C4 Ultimate Pre-Workout Review (2024): Is This Amped-Up Supplement Worth the Price?

C4 Ultimate Pre-Workout Review (2024): Is This Amped-Up Supplement Worth the Price?

For our C4 Ultimate Pre-Workout review, we asked personal trainer, USAW-L2, and unofficial pre-workout expert Jacob Penner his opinion on this formidable product. Read the full review.

Pros & Cons

What we like ...
  • 300 mg of caffeine
  • No artificial dyes or flavors
  • Subscription option to save
  • Contains beta-alanine and L-citrulline
What needs improvement ...
  • Expensive price per serving
  • Not NSF Certified for Sport

Product Summary


Serving Size

1 scoop (16.3 g)

Servings per Container


Price per Serving


Caffeine Content

300 mg


Strawberry Watermelon, Arctic Snow Cone, Icy Blue Razz, Orange Mango

GGR Community Reviews

C4 Ultimate Pre-Workout

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      If you’re looking for a pre-workout to help you through low-energy days, C4 Ultimate Pre-Workout could be a good choice with a whopping 300 milligrams of caffeine per serving. At $45 for 20 servings, it’s a fairly pricey pre-workout, although there is an option to subscribe and save 30%---plus free shipping. Along with this, C4 Ultimate has pre-workout staples like beta-alanine, L-citrulline, and taurine. This pre-workout is available in four different flavors.