Cellucor C4 Energy XTEND

Energy to Perform with C4® Ultimate Non-Carbonated

Table of Contents

C4 Ultimate Ready to Drink

When it’s time to kick it into seventh gear, the right type of fuel can provide explosive energy. When you need a bottle of pure domination, a formula engineered to support your need for intensity, C4® Ultimate is in a league of its own.

What makes C4® Ultimate so extraordinary? It’s zero sugar, zero calories, tastes insanely delicious and best of all it’s already pre-mixed in a resealable bottle. Even the most dedicated athletes have hectic lifestyles outside of the gym, so portable energy on the go is a convenient solution.

C4® Ultimate was designed to help support attention, performance, and hydration.

The Ultimate Combination of Explosive Energy and Superhuman Performance


Caffeine consumption has shown beneficial effects on exercise performance and some aspects of cognitive function.[1] The 300 mg of caffeine per serving found in a bottle of C4® Ultimate is the foundation of C4® Ultimate’s explosive energy.

AlphaSize ®

Alphasize ® Alpha-GPC is a patented form of the ingredient choline (Alpha-glyceryl phosphorylcholine), which is a nutrient that is naturally found in the brain; Alpha GPC has been studied in clinical trials for its potential effects on cognition and athletic performance.[2] Alpha-GPC supplementation can increase acetylcholine levels; acetylcholine is a neurotransmitter involved in forging the mind-muscle connection during each rep.[3]

CarnoSyn® Beta-alanine

Beta-Alanine helps muscles fight fatigue by buffering lactic acid, the burning sensation you feel when a workout gets intense.[4] Research on beta-alanine supplementation has shown that it may be beneficial for enhancing training volume in team-sport athletes.[5]


L-Citrulline helps boost nitric oxide levels, serving as a foundation for your ultimate pump. In a 2019 systematic review on citrulline supplementation, researchers noticed a possible secondary benefit of citrulline for strength endurance, noting further research is encouraged.[6]

BetaPower ® Betaine

BetaPower ® Betaine is an extract derived from sugar beets and it’s been scientifically studied for its ability to support hydration by maintaining electrolyte balance in cells.

C4® Ultimate is the perfect ready to drink pre-workout that delivers a powerful combination of ingredients to support attention, performance, and hydration. Zero sugar, zero calorie explosive energy that you can enjoy on the go. Grab a bottle of explosive energy and crush your next challenge.




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