C4 Ultimate Pre Workout Powder – Portable Energy for Outdoor Training and Trail Workouts
C4 Ultimate Pre Workout Powder – Portable Energy for Outdoor Training and Trail Workouts
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Why you'll love it
- Industry-leading 300mg caffeine dose for users who want maximum, fast-acting energy
- Clinically studied ingredients like CarnoSyn Beta-Alanine and patented creatines lend credibility over generic pre-workouts
- Sugar-free, vegan, keto, and gluten-free formulation fits restrictive diets without compromise
- Wide range of distinctive flavors (Jolly Rancher Cherry, Hawaiian Punch, Frozen Bombsicle) reduces flavor fatigue across restocks
- Two patented creatines deliver more complete creatine support than single-source competitors
- Comprehensive 6g Citrulline Pump Matrix targets the 'pump' experience that serious lifters actively seek
Perfect for
- Pre-workout energy and focus boost before heavy lifting or HIIT sessions
- Increasing muscular endurance and rep count during resistance training
- Maximizing muscle pumps and nitric oxide response for hypertrophy workouts
- Fighting workout fatigue during long or intense training sessions
- Daily energy priming for serious training days when motivation or output needs a boost


Backed by 20 years of sports nutrition expertise, we’ve raised the bar with an innovative selection of supplements. Since every fitness journey is unique, we continue to develop and deliver products that support our customers at every experience level.
Ultimate pre-workout performance for men & women
Formulated to fuel your ultimate, C4 Ultimate contains ingredient dosages for unmatched energy, powerful performance, muscular endurance, and extreme focus.
ULTIMATE ENERGY
Fuel your ultimate training and results with 300mg of caffeine for no-holds barred energy.
ULTIMATE ENDURANCE
Unleash ultimate endurance and fight fatigue with 3.2g of the clinically studied CarnoSyn Beta-Alanine
ULTIMATE PERFORMANCE
Elevate nitric oxide levels with a 6g Super Pump matrix of L-Citrulline, Citrulline-Malate, and NitraMax (NO3-C) Citrulline Nitrate.
ULTIMATE FLAVORS
Legendary zero sugar C4 taste in every scoop. With billions of servings sold, C4 has been setting the standard in flavor for over a decade.
America’s #1 Selling Pre-Workout*
Millions of people—ranging from beginners all the way up to the elite competitors, have relied on C4 pre-workout to ignite their fitness journey.






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Product Information
BUILD STRENGTH - Formulated with a Super Citrulline Pump Matrix to support ultimate pumps and an increase in nitric oxide
INCREASE REP COUNT - Formulated with CarnoSyn Beta-Alanine, a premium clinically studied beta-alanine, which has been studied to support muscular endurance and fight fatigue
MORE SCOOPS, PLEASE - Formulated with a patented and clinically studied compound that may help the body prolong its caffeine tolerance buildup
ULTIMATE ENERGY - Get your ultimate workout started with 300 mg of caffeine.
DELICIOUS FLAVORS UNLIKE ANYTHING ON THE MARKET - Cotton Candy, Icy Blue Razz, Orange Mango, Sour Batch Bros, Strawberry Watermelon, Freedom Ice, and Mango Foxtrot
Packaging May Vary*
Brand: C4
Flavor: Strawberry Watermelon
Primary Supplement Type: Calcium, Creatine, Potassium
Unit Count: 11.5 Ounce
Item Form: Powder
Item Weight: 13.6 ounces
Item dimensions L x W x H: 4.1 x 4.1 x 4.5 inches
Special Ingredients: Beta-Alanine, Creatine, L-Citrulline
Diet Type: Gluten Free, Keto, Vegan
Product Benefits: Circulation Support, Energy Management, Inflammation Management, Metabolism Management, Muscle Growth
Our most advanced and comprehensive pre-workout experience, C4 Ultimate is fully loaded with 300mg of caffeine, 6g Citrulline Pump Matrix, 3.2g CarnoSyn beta-alanine, and an array of additional supporting ingredients to deliver the ultimate in explosive energy, pumps, performance, and focus.
Packaging May Vary*
Items Details
Frequently Asked Questions
Is C4 Ultimate portable enough to take on camping trips and outdoor adventures?
Yes. Each container of C4 Ultimate includes 20 pre-measured servings in a tub, and you can pre-portion scoops into small baggies or a shaker bottle for travel, hotel gyms, and trail-side training.
Can I use C4 Ultimate for outdoor HIIT sessions at the park or beach?
Absolutely. The 300mg caffeine and 3.2g Beta-Alanine support high-intensity intervals performed anywhere. Just mix your scoop into a shaker with cold water 20-30 minutes before your outdoor session.
Does the formula hold up in hot weather or direct sunlight?
Mix C4 Ultimate fresh in cold water for outdoor sessions. Pre-mixed shakes should be consumed within a few hours and kept cool, as warm temperatures can affect flavor and ingredient stability.
Is the tub durable enough for travel in a gym bag or backpack?
The standard C4 Ultimate tub is designed for active lifestyles and fits easily in a gym bag or backpack. For rugged travel, transferring powder into a sealed container or shaker bottle adds extra protection.
Can I rely on C4 Ultimate as my primary energy source for multi-day outdoor training events?
C4 Ultimate is ideal for training-day energy, but for multi-day events, pair it with proper meals, hydration, and electrolytes, and consider cycling caffeine use to prevent tolerance buildup across consecutive days.
Is this good for athletes who travel frequently and train in different gyms?
Yes. C4 Ultimate's tub is travel-friendly, and the vegan, gluten-free, and keto-friendly formulation makes it easy to maintain your performance stack whether you are training at home, a hotel gym, or a competition venue.
Will the 6g citrulline pump complex help with bodyweight and calisthenics workouts outdoors?
Yes. The Citrulline Pump Matrix enhances blood flow and muscular pumps, which benefits calisthenics athletes working pull-up bars, rings, and parallel bars in outdoor parks and calisthenics parks.
Can I take C4 Ultimate before a long hike that ends with a workout?
You can, but the 300mg caffeine and stimulants may be intense for extended endurance efforts. For hike-plus-workout days, consider a half scoop to balance energy without overstimulation.
How does C4 Ultimate compare to portable energy gels for outdoor training?
Energy gels provide quick carbohydrates for endurance. C4 Ultimate delivers clinically dosed stimulants, beta-alanine, and creatine for strength and HIIT, making it a different tool focused on training output rather than sustained endurance fueling.
How does C4 Ultimate compare to a pre-workout you mix fresh in a shaker for the gym?
C4 Ultimate itself is a mix-fresh pre-workout powder. For outdoor use, the only adjustment is using a quality shaker bottle to keep the powder cold and well-mixed during travel to your training spot.
Is 300mg caffeine too strong for a casual outdoor walk or light hike?
Yes, C4 Ultimate is formulated for high-intensity training. For light outdoor activity, a lower-stim product or a half scoop is more appropriate to avoid overstimulation.
Will the sugar-free formula cause stomach issues during outdoor training in the heat?
Most users tolerate C4 Ultimate well, but in heat, sip water steadily with your dose to support digestion. If you have a sensitive stomach, start with a half scoop to test tolerance outdoors.
Is the tub resealable enough to keep powder fresh across multiple outdoor trips?
Yes. The C4 Ultimate tub features a secure screw-top lid that keeps powder fresh and dry between uses, ideal for athletes who take it on multiple trips or to varied training locations.
How do I take C4 Ultimate for best results?
Mix one scoop with 8-12 oz of cold water 20-30 minutes before training. Beginners or stimulant-sensitive users should start with a half scoop to assess tolerance before progressing to a full dose.
When should I take C4 Ultimate on training days?
Take C4 Ultimate 20-30 minutes before your workout to allow the 300mg caffeine and beta-alanine to peak in your system during your warm-up and working sets.
Can I stack C4 Ultimate with creatine or other supplements?
Yes. C4 Ultimate already contains two patented creatines, but you can stack it with additional creatine, BCAAs, or pump products based on your training goals. Avoid stacking with other high-stim sources to manage total caffeine intake.
Is C4 Ultimate compatible with vegan, keto, and gluten-free diets?
Yes. C4 Ultimate is vegan, keto-friendly, gluten-free, and sugar-free, making it compatible with most restrictive diet protocols and macro-tracking plans.
Does C4 Ultimate mix well in a standard shaker bottle?
Yes. C4 Ultimate mixes easily with water in any standard shaker bottle. For best results, add water first, then the scoop, and shake vigorously for 20-30 seconds.
What is included in the tub when I unbox C4 Ultimate?
Each tub contains 20 servings of C4 Ultimate pre-workout powder with a built-in scoop under the lid. Just add water and a shaker bottle; no additional equipment is required.
Is 300mg of caffeine per serving safe for healthy adults?
For healthy adults who tolerate caffeine well, 300mg is within safe daily ranges when not combined with other stimulants. Consult a physician if you have cardiovascular conditions or caffeine sensitivity.
Can I take C4 Ultimate if I am pregnant or nursing?
No. C4 Ultimate contains 300mg caffeine and other performance ingredients that are not recommended during pregnancy or nursing. Consult your healthcare provider for safe alternatives.
What is the difference between C4 Ultimate and regular C4 pre-workout?
C4 Ultimate is the premium tier featuring 300mg caffeine, two patented creatines, a 6g Citrulline Pump Matrix, and 3.2g CarnoSyn Beta-Alanine. Standard C4 Original is a more entry-level formula with lower clinical doses and a simpler ingredient profile.

