A C4 pre-workout can usually means a ready-to-drink C4 energy drink. It is a finished beverage, rather than a scoop of C4 powder in different packaging. C4 Performance Energy, other C4 beverage lines and powdered pre-workouts need separate label checks; sharing a brand does not make their formulas interchangeable.
A specific current can example
Cellucor’s C4 Performance Energy page lists 16 fl oz cans and 200 mg caffeine. Its displayed Strawberry Watermelon Ice nutrition image, checked October 13, 2026, states:
- Serving size: one 16 fl oz can.
- Caffeine: 200 mg per can.
- Calories: 5; total carbohydrate and sugars: 0 g.
- Sodium: 45 mg; potassium: 90 mg; vitamin B12: 6 mcg.
That ingredient list includes CarnoSyn beta-alanine, BetaPower betaine anhydrous, caffeine anhydrous, sucralose and acesulfame potassium. It does not list citrulline. Individual beta-alanine and betaine amounts are not disclosed on this image, so doses from a powder or older can cannot fill the gaps.
Size and formula history change the answer
Documented STARBURST Strawberry labels illustrate the differences. The manufacturer’s label held in NSF’s 16 fl oz listing shows 200 mg caffeine and 10 calories, while the 12 fl oz listing shows 150 mg caffeine and zero calories. Both list citrulline, unlike the current Strawberry Watermelon Ice example above.
Those records establish particular labels, not today’s inventory or every C4 formula. The historical photograph accompanying this guide shows STARBURST Cherry from Nutrabolt’s 2021 launch; it is not a Strawberry or Strawberry Watermelon Ice product image.
Can it replace a powdered pre-workout?
Convenience is the main format difference: a can requires no measuring or mixing. Decide separately whether its disclosed ingredients match what you want. A sweet flavor, visible tingling or a higher caffeine number does not establish superior training results. NIH notes that ingredient research cannot simply establish the effectiveness of every multi-ingredient product.
Check the warnings, too
Cellucor recommends this drink for adults and warns against use during pregnancy or nursing. Count caffeine from coffee, medications and other supplements, and avoid stacking it with a stimulant pre-workout. Caffeine can disturb sleep or cause adverse effects at amounts some other adults tolerate; the FDA emphasizes that sensitivity varies. A smaller can should still be judged by its printed caffeine amount.
Product pages and existing offers
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Sources and review notes
Reviewed October 12, 2026. Cellucor C4 Performance Energy. Strawberry Watermelon Ice manufacturer nutrition label. NSF 16 fl oz STARBURST Strawberry manufacturer label. NSF 12 fl oz STARBURST Strawberry manufacturer label. Nutrabolt September 28, 2021 STARBURST launch. FDA caffeine guidance. NIH exercise supplement evidence. This is editorial guidance based on identified labels and sources, not a report of personal product testing. Product versions and offers can change.
