Flavor: Cotton Candy
In stock


Superbrain Nootropic Energy - Cellucor C4 Smart Energy Superbrain RTD

Want more from your energy drink? Try the all new Cellucor C4 Smart Energy, a ready-to-drink formulation of Stimulants and Nootropics for energy and Brain power! The key cognitive performance boosting ingredients in C4 Smart Energy Superbrain include Citicoline, Niacin, and Vitamin B12. On the other Hand, the energy formula behind C4 Smart Energy RTD contains 200mg of Natural Caffeine from Green Tea Leaves. This formula provides the perfect blend to boost your energy and performance levels, as well as support Mental focus, attention, and memory. Crush your day and your workout with this potent combination of ingredients. Plus, Cellucor C4 Superbrain contains zero grams of sugar, zero calories, and no artificial colors. Get everything you want from this next-level energy drink and nothing that you don't. So try Cellucor C4 Smart Energy at Supplement Warehouse today!

Cellucor C4 Smart Energy RTD Benefits

  • Contains Zero Sugar
  • Performance Fuel
  • Zero Calories
  • 200mg Of Caffeine Per Can
  • Anytime Energy Drink

Cellucor C4 Smart Energy RTD Flavors

  • Electric Sour
  • Cotton Candy
  • Peach Mango Nectar
  • Freedom Ice
  • Blue Razz

When Should I Drink Cellucor C4 Smart Energy RTD?

Cellucor recommends drinking one (1) Can of C4 Smart Energy anytime you need an boost of energy, focus, or performance during your day. 

Other C4 Energy Drinks & Supplements

To find all of our Cellucor and C4 Energy Supplements, click here!

Cellucor C4 Smart Energy RTD Ingredients

Serving Size: 1 Can

Servings Per Container: 12

Calories 0

Total Fat 0g 

Sodium 0mg 

Total Carbohydrate 0g 

Total Sugars 0g

Includes 0g Added Sugars

Protein 0g 

Niacin 30mg 

Vitamin B12 6mcg

Other Ingredients: Carbonated Water, Citric Acid, Malic Acid, Natural Flavors, Cognizin Citicoline, Potassium Benzoate (Preservative), Sucralose, InnovaTea Green Tea Leaf Extract, Acesulfame Potassium, Niacinamide, N-Acetyl-L-Tyrosine, Sodium Citrate, Cyanocobalamin (Vitamin B12).

Cellucor C4 Smart Energy RTD Side Effects & Warnings

Do not consume this product if you are pregnant or nursing. Store in a cool, dry place. Do not freeze. Keep out of reach of children. Do not exceed recommended dose.


Cappelletti S, Piacentino D, Sani G, Aromatario M. Caffeine: cognitive and physical performance enhancer or psychoactive drug? [published correction appears in Curr Neuropharmacol. 2015;13(4):554. Daria, Piacentino [corrected to Piacentino, Daria]]. Curr Neuropharmacol. 2015;13(1):71-88. doi:10.2174/1570159X13666141210215655


Wickham KA, Spriet LL. Administration of Caffeine in Alternate Forms. Sports Med. 2018;48(Suppl 1):79-91. doi:10.1007/s40279-017-0848-2