Pre-Workouts. User Reviews & Best Deals on Amazon: Cellucor C4 Ultimate Pre Workout Powder with Beta Alanine, Creatine Nitrate, Nitric Oxide, Citrulline Malate, and Energy Drink Mix, Icy Blue Razz, 20 Servings Cellucor

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  • Product Dimensions: 4 x 4 x 4.5 inches
  • Shipping Weight: 12.8 ounces (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • UPC: 810390029808
  • Item model number: 104213


C4 Ultimate is the most powerful C4 we’ve ever created. It’s not for the weak. It’s not for the weekend warrior. This is for those that don’t have limits in the gym. Those that aren’t afraid to work, sweat, and bleed for their next best. It’s dosed to the brim with the powerful ingredients that your body begs for. You will feel the explosive energy run through your veins as you prep for battle in the gym.*This maxed-out formula also packs a heavy punch of nootropics, mood enhancers, pump amplifiers and endurance boosters to push you to your ultimate limit. C4 Ultimate will challenge you for one more rep, one more set, and to pick up that heavy dumbbell you’ve been thinking about for weeks.*

User reviews

Awesome pre-workout! Best I've used!
Worked great!
Great product!
great product. delivered quickly.
This formula is too much for me. I have taken C4 and enjoyed it in the past and purchased this one at my hubs request. He loves it--gets explosive workouts and says he doesn't fatigue as quickly. When I tried it I had a different experience. I am half my husband's size and it made my heart race and my head spin (keep in mind, I handle original C4 just fine). Yes it works, but I think it's too much energy for a) someone sensitive to pre-workout or b) a light person (I'm 130).To give it another shot, I tried half a scoop on a full stomach one day and that was a bit more tolerable I still prefer original C4 to this.
Superb!!! I also got a new one
My only real reason for 4 stars rather than 5 is the price. $40 for 20 servings of preworkout is a lot. Even if it were the greatest thing on earth, calculate that over a year and its expensive just to supply it. What I did is I used a previous scoop that came with the original c4 (half the size of the one they give you here) and just took less. Even if you're huge and used to this stuff, there's a lot of caffeine and other things in it - you might want to take it slow.I was being funny with the heading, but it's really no joke. It's almost as if drinking this makes your body digest everything you ate in the past week at super speed, and it's almost guaranteed that within 15 minutes of drinking it, you will need to find a toilet. Just saying.In terms of how it works, c4 is one of the better ones out there. It gives good energy, strength boost, not really any major crashing, etc. I've taken the old c4 for about a year and this one didn't make me feel as tingly or flushed, but it seemed about the same in terms of effect at the gym. I felt more focused, but had about the same level of energy, which of course with c4 is still good. The cherry limeade flavor is really good - they did a great job with that - doesn't taste like a fried boot like other preworkouts.I wanted to try it, but I would only buy this one again if they lowered the price.

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Bob Rickman
Bob Rickman is a professional fitness trainer and gym instructor and he typically does the following: Demonstrates how to carry out various exercises and routines. Watches clients do exercises and show or tell them correct techniques to minimize injury and improve fitness. Gives alternative exercises during workouts or classes for different levels of fitness and skill. Monitors clients’ progress and adapt programs as needed. Explains and enforce safety rules and regulations on sports, recreational activities, and the use of exercise equipment. Gives clients information or resources about nutrition, weight control, and lifestyle issues. Gives emergency first aid if needed. On his free time he's working as an independent writer and reviewer in close collaboration with


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