Rockstar XDurance Energy Drink

Caffeine Level
Serving Size
Caffeine Strength
EXTREME Warning: This drink has very high levels of caffeine.
Correction? Send Feedback

Rockstar XDurance Energy Drink is labeled as a performance energy drink targeted to athletes. They've thrown in an extra helping of branched-chain amino acids, creatine, and electrolytes, yet spared the sugar rush by only delivering 2 grams per can.

The latest version of Xdurance is Rockstar's attempt to compete with Bang Energy Drink which has exploded in popularity. 

Note: Now Xdurance also comes in a 24 fl oz can with 400 mg of caffeine per can! Be extra careful with this one. 

Rockstar XDurance is the most caffeinated energy drink from Rockstar. 

  1. Flavors or Xdurance
  2. Cotton Candy
  3. Super Sours Green Apple
  4. Peach + Tea
  5. Kiwi Strawberry
  6. Blue Razz
  7. Marshmallow

The following review was for the original Xdurance not the 300 mg/can version.

A Blueberry Marathon in My Mouth

Although XDurance is blueberry, pomegranate, and acai flavored, the dominant flavor is definitely blueberry. It has a light flavor and is moderately sweet with a mild artificial sweetener aftertaste. It was nice to see no artificial flavors or colors in Rockstar XDurance. Vegetable juice makes it red instead of the infamous red dye.

Rockstar XDurance Delivers

Not only have they upped the amino acid profile, but also, the caffeine has been increased. At 300mg/can, this is 140mg more than a traditional Rockstar. It's like drinking almost 4Red Bulls. Rockstar Xdurance definitely increased my alertness, but I thought the flavor was a little off since I'm not a big blueberry drink fan.

Buyer Beware

People who aren't used to larger amounts of caffeine or who are unsure of their sensitivity level to caffeine should avoid this drink.  It can cause problems for some people.

Here's what one consumer reported to us:

I would like to share my story about Rockstar XDurance. I had been drinking Monsters for the past 3 days and they seemed to have no effect. I had previously tried one of the XDurance before and thought I was okay to have another. I was hyperfocused for the remainder of that day and then chest pain set in. I have heard that a majority of heart attacks happen at night but figured it was a panic attack. Then my jaw felt as if it were pounding, my head started throbbing and my shoulder hurt. I panicked. My heart rate when the paramedics came was 136. As the drink wore off, it went down, but I genuinely thought I was having a heart attack. I didn't go to the hospital, but the lesson I learned that night will keep me from ever touching another energy drink. I think this drink crosses the line from "extreme" to dangerous.


Where To Buy Rockstar XDurance Energy Drink

Ingredients in Rockstar XDurance Energy Drink

Carbonated Water, Citric Acid, Caffeine, Benzoic Acid, (Preservative), L-Leucine, Sucralose, Potassium Citrate, Natural Flavors, Magnesium Lactate, Sorbic Acid (Preservative), Acesulfame Potassium, L-Valine, L-Isoleucine, Niacinamide, Pantothenic Acid, Dipotassium Phosphate, Coenzyme Q-10 (Coq10), Pyridoxine Hydrochloride, Cyanobalamin.

Sugar content: 2 grams (per 16 ounces).

Compare sugar levels of other drinks

Caffeine Comparisons

Rockstar XDurance Energy Drink contains 18.75 mgs of caffeine per fluid ounce (63.40mg/100 ml).

Caffeine (mg) per Ounce
10090807060 5040302010 0 Rockstar XDurance Energy Drink 5 Hour Energy Espresso Shot Coca-Cola Classic
Total Caffeine (mg)
400360320280 24020016012080 400 Can of Rockstar XDurance Energy Drink Can of Coca-Cola Classic Bottle of Redline Energy Drink Can of Monster Energy Drink Can of Red Bull
Data Sources: the can