Price: $33.82 - $30.73
(as of Dec 15, 2025 21:29:49 UTC – Details)
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*
Product Dimensions : 4.1 x 4.1 x 4.5 inches; 11.57 ounces
Item model number : 104294
Date First Available : December 1, 2019
Manufacturer : Nutrabolt
ASIN : B081ZLQK43
Best Sellers Rank: #10,071 in Health & Household (See Top 100 in Health & Household) #35 in Sports Nutrition Pre-Workout Powders
Customer Reviews: 4.5 4.5 out of 5 stars (2,660) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
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*
Customers say
Customers find the pre-workout powder effective, particularly noting it helps them work out for up to 2 hours daily and provides an extra boost before exercise. The product receives positive feedback for its energy level, quality, and value for money, and customers consider it a great pre-workout supplement. However, the taste receives mixed reactions, with some finding it good while others say it’s too sweet, and the tingling sensation is also mixed, with some feeling great at the gym while others experience itchy palms. Moreover, some customers report chest pain and stomach issues after use.
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