• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Generation Iron

Generation Iron Fitness & Strength Sports Network

  • Movies
  • Original Content
  • Reviews
    • Supplements
      • Pre-Workout
      • Fat Burners
      • Testosterone Boosters
      • Creatine
      • Protein
      • BCAAs
      • Multivitamins
      • Omega-3
      • Joint Supplements
      • Super Greens
      • Meal Replacement
    • Recovery
      • Best Cold Plunges
      • Best Saunas
      • Best Foam Rollers
      • Best Massage Guns
    • Programs
      • Best Online Workout Programs
      • Best Workout Streaming Services
      • Best Home Workout Programs
  • Equipment
    • Cardio
      • Treadmills
      • Best Exercise Bikes
      • Best Stair Climbers
    • Fitness Accessories
      • Best Apparel
      • Best Gym Bags
      • Weightlifting Shoes
    • Strength
      • Best Dumbbells
      • Best Barbells
      • Best Kettlebells
      • Best Squat Racks
      • Best Weightlifting Belts
      • Best Home Gym Equipment
      • Complete Home Gyms
    • Training
      • Best Knee Sleeves
      • Best Wrist Wraps
      • Best Weightlifting Wraps
      • Best Weightlifting Gloves
  • More
    • About Us
      • Our Team
      • Our Experts
    • Advertise
    • Franchise With Us
    • Exercise Guides
    • Athlete Profiles
    • Podcasts
    • Power 30
    • Bodybuilding Awards
    • Supplement Awards
  • Shop
Reviews

Cellucor C4 Ultimate Review For Serious Pre-Workout Performance

by Austin Letorney Published on Mar 26, 2025 Fact checked by Dr. Jacob Wilson

Cellucor C4 Ultimate
This post may contain affiliate links (disclosure policy).

Cellucor’s C4 pre-workout is the perfect aid for delivering extreme focus and energy so you feel powerful pumps and see peak performance.

Preparing for a workout can be long and arduous. We often feel sluggish, unprepared, exhausted after a long day of work or going through daily activities. And yes, most times our bodies just won’t get off the couch, but becoming a couch potato is not an option. Pre-workout supplements are a great choice to get you moving so you see those gains you want most. With natural ingredients to boost energy and help see growth and added gains, these products are a tasty way to get up and get moving. Our team has reviewed many options of pre-workout on the market, but Cellucor C4 Ultimate is a powerful pre-workout designed to see real energy, serious pumps, and allow you to reach peak performance for the best results.

What a good pre-workout will do is give you a real boost of energy to get you up and moving while also providing focus and alertness so you stay on top of all your workouts. These supplements can also provide for muscle pumps to get your blood flowing so you see that desired growth you want most. By working to reduce fatigue, they can keep you going for longer while also enhancing recovery so you bounce back faster and with less stress. Cellucor C4 Ultimate can do this and more as you seek the most out of your peak performance.

Cellucor C4 Ultimate Highlights

Cellucor C4 Ultimate

Cellucor C4 Ultimate

Cellucor C4 Ultimate

Cellucor C4 Ultimate is a powerful pre-workout supplement designed to increase energy, provide powerful muscle pumps, and enhance focus for peak performance. Effective ingredients and a fully transparent label ensure you get the best for your pre-workout needs.

Shop Cellucor

Cellucor is a leading sports nutrition brand creating award winning products that are quality you can trust in. With a focus on creating the best supplements for athletes everywhere matched by prompt customer service, Cellucor is on a mission to better the lives of their consumers with top tier supplements, amazing benefits and results, and quality care.

Cellucor C4 Ultimate is a great pre-workout supplement designed to help you see results and achieve peak performance so all your goals are met. This supplement will work to deliver serious energy, provide powerful pumps, enhance better muscular endurance, and offer extreme focus so you see huge gains and reach peak performance.

C4 Ultimate is clinically studied ingredients are mixed into a cutting-edge formula to only give you the best when it comes success. A fully transparent label tells you everything you deserve to know and this supplement contains no artificial flavors, dyes, or proprietary blends to ruin a great product.

pre-workout

C4 Ultimate Ingredients

Ultimate Energy

Caffeine Anhydrous: Works to elevate energy so you can tackle any grueling workout while boosting focus and reaction time to improve performance (1).

Theacrine: Can help you push through fatigue and enhance energy and focus for the best in terms of performance (2).

Rauwolfia vomitoria: May boost exercise performance as well as enhancing mood as an effective activator of serotonin receptors.

Ultimate Performance

CarnoSyn Beta-Alanine: Works as a buffer for pH levels to push past fatigue that may strike.

Creatine HCL: This is creatine bound to hydrochloric acid which will work towards increased bioavailability and reduce side effects (3).

Creatine Nitrate: Can improve cardiovascular performance and power output for those more grueling workouts while also improving the flow of oxygen.

Ultimate Pumps

L-Citrulline: Can boost nitric oxide while maintaining good blood flow for increased muscle pumps (4).

Citrulline Malate: May help delay the onset of fatigue to keep you working harder and for longer.

Citrulline Nitrate: Can improve vascular function and exercise performance as well as increasing the bioavailability of nitric oxide.

Ultimate Focus

Taurine: Can help with aerobic and anaerobic performance, metabolic stress, and recovery while also improving focus to stay on track (5).

N-Acetyl L-Tyrosine: May boost cognition and alertness for increased focus and may also improve mood (6).

AlphaSize A-GPC: Can enhance brain metabolism for improved focus, memory, and sports performance.

Huperzine A: Used to enhance cognition during exercise, this can improve focus, alertness, and muscle strength.

Cellucor C4 Ultimate

Stim Or No Stim Stim
Calories 5
Carbs Less than 1
Sugar N/A
Number Of Servings 12, 20, or 40
Flavors Icy Blue Razz, Strawberry Watermelon, Orange Mango, Sour Batch Bros, Cotton Candy
Best Way To Take Take one scoop with 10-12 fl. oz. of water 20-30 minutes before training.

Price, Flavors & Effectiveness

Cellucor C4 Ultimate is that pre-workout supplement you need most to deliver energy, pumps, muscular endurance and extreme focus to capitalize on all your gains. With 12 servings per container, 1 scoop of this powerful formula will pump you with everything you need to see peak performance and serious gains.

Pros

  • Delivers energy, powerful pumps, muscular endurance, and extreme focus, among other benefits
  • Effective ingredients to help see results and achieve peak performance
  • A fully transparent label with no artificial dyes, flavors, or proprietary blends
  • From a well-known company in Cellucor

Cons

  • Low number of servings makes us wish there were more and it gets pricey with higher servings
  • Flavor tastes great but may be strong for some

Price: $23.99


Check out our list of the Best Pre-Workout Supplements for more great pre-workout products!

FAQs

Can I take pre-workout instead of coffee?

Your morning coffee may not be doing it for you, so pre-workout could be a good replacement. Just be wary of the caffeine amount and and beta alanine, and be prepared for the effects of it.

Is pre-workout better than energy drinks?

This all depends on your needs, personal preference, and budget. Typically an energy drink is more expensive per serving than pre-workout, with similar contents.

Isn’t C4 for gym newbies?

Cellucor has been putting C4 out for a long time, and there are definitely a lot of pre-workout brands out there now with quality products, so you may think C4 is for those who do not know much about the gym and other brands. But, Cellucor keeps up with the times and their formula for C4 Ultimate is still top tier, so no, it is not just for gym newbies.

How We Choose

When it comes to choosing the best supplements, Generation Iron looks at everything, dissecting each piece to make sure we are giving an honest review. We look at price, flavors, effectiveness, ingredients, and more. Then, we also sample it for a time period to make sure we like it.

Overall Value

c4 ultimate

Cellucor C4 Ultimate is that powerful pre-workout supplement you need most to boost those gains. Designed to give you great energy boosts, provide for serious pumps, and ultimately lead to peak performance, this effective and cutting-edge formula delivers all those pre-workout needs to you as efficiently as possible.

Cellucor knows the needs of athletes and works hard to deliver everything athletes need to thrive. What you are really getting is a powerful pre-workout with effective ingredients, a transparent label, and a well-known company backing you. Try Cellucor C4 Ultimate today and work to each peak performance in no time.

Try Cellucor C4 Ultimate Today


Generation Iron may receive commissions on purchases made through our links. See our disclosure page for more information.

Let us know what you think in the comments below. Also, be sure to follow Generation Iron on Facebook, Twitter, and Instagram. 

*Images courtesy of Cellucor and Envato

References

  1. McLellan, T.; Caldwell, J.; Lieberman, H. (2016). “A review of caffeine’s effects on cognitive, physical and occupational performance”. (source)
  2. Bello, M.; Walker, A.; McFadden, B.; Sanders, D.; et al. (2019). “The effects of TeaCrine and caffeine on endurance and cognitive performance during a simulated match in high-level soccer players”. (source)
  3. Franca, E.; Avelar, B.; Yoshioka, C.; Santana, J.; et al. (2015). “Creatine HCL and Creatine Monohydrate Improve Strength but Only Creatine HCL Induced Changes on Body Composition in Recreational Weightlifters”. (source)
  4. Gonzalez, A.; Trexler, E. (2020). “Effects of Citrulline Supplementation on Exercise Performance in Humans: A Review of the Current Literature”. (source)
  5. Waldron, M.; Patterson, S.; Tallent, J.; Jeffries, O. (2018). “The Effects of an Oral Taurine Dose and Supplementation Period on Endurance Exercise Performance in Humans: A Meta-Analysis”. (source)
  6. Coull, N.; Chrisman, B.; Watson, P.; Horsfall, R.; et al. (2016). “Tyrosine Ingestion and Its Effects on Cognitive and Physical Performance in the Heat”. (source)

About Austin Letorney

Austin Letorney is a writer, actor, and fitness enthusiast. As a former rower, he has shifted his focus to sharing his knowledge of the fitness world and strength sports with others.

View All Articles

Primary Sidebar

Get the Latest

Stay informed with the latest news, product reviews, & expert advice.

Popular Reviews

  • best protein powders

    The Best Protein Powder Supplements of 2025 (Tried and Tested)

  • Best Creatine Supplements For Bulking & Muscle Growth of 2025 (Personally Tested)

  • top x pre workout

    The 14 Best Pre-Workout Supplements of 2025 (MD Reviewed)

  • Performance Lab SPORT BCAA

    The Best BCAA For Bodybuilding Health & Performance Goals

Trending Articles

  • female fitness models

    18 Best Butts On The Internet (Updated 2024)

  • ronnie coleman the king workout

    Ronnie “The King” Coleman’s Complete Bodybuilding Workout

  • Chris bumstead's 2024 workout and diet plan

    Chris Bumstead’s 2025 Complete Bodybuilding Workout & Diet Plan

  • The Ultimate Mike Mentzer Workout and Diet

Popular Now

  • best protein powders

    The Best Protein Powder Supplements of 2025 (Tried and Tested)

  • Best Creatine Supplements For Bulking & Muscle Growth of 2025 (Personally Tested)

  • top x pre workout

    The 14 Best Pre-Workout Supplements of 2025 (MD Reviewed)

  • female fitness models

    18 Best Butts On The Internet (Updated 2024)

  • best citrulline supplements

    The Best Citrulline Malate Supplements for Performance and Pump

  • ronnie coleman the king workout

    Ronnie “The King” Coleman’s Complete Bodybuilding Workout

Generation Iron

Generation Iron is the first and only digital network delivering health, fitness, bodybuilding, and strength sports content. We deliver premium content with the biggest names in fitness and provide expert coverage, reviews on top brands, workout tips and trends in the worlds of fitness, health and strength sports.

Strongman Corporation
Vladar

Sections

  • Trending News
  • Original Movies
  • Original Content
  • Supplement Reviews
  • Equipment Reviews
  • Exercise Guides
  • Nutrition Guides
  • Athlete Profiles

More

  • About Us
  • Our Team
  • Our Experts
  • Advertise
  • Franchise With Us
  • Podcasts
  • Power 30
  • Shop

CONTACT

Generation Iron Brands LLC
134 West 29th Street Suite 902
New York, NY 10001
Email: [email protected]

Follow

  • Facebook
  • Instagram
  • X / Twitter
  • YouTube

© 2025 · Generation Iron · Disclaimers · Privacy Policy · Accessibility