Caffeine in Workout Supplements

caffeine-workout-supplementsWorkout Supplements can be a great way to help athletes get those few extra reps in at the gym.

Most of them make some extraordinary claims like “massive gains” and “extreme endurance”, however, we aren’t going to address the accuracy of those claims, but instead, focus on the caffeine content.

Most workout supplements contain a large dose of caffeine as one of the main active ingredients, which is primarily responsible for any “energy rush” experienced by the consumer.

Caffeine Content of Workout Products

Supplement Caffeine (mg/serving) Caffeine source
ABB Speed Stacked Pumped 300/bottle Caffeine Anhydrous, Guarana
About Time AUX 60/scoop Yerba Mate’, Guarana, Green Tea
BANG Energy Drink 300/can Caffeine Anhydrous
BreinFuel 360/bottle Green Tea, Coffee Beans
Hyde Power Potion 350/can Caffeine Anhydrous
BPI B4 300/capsule* Caffeine Anhydrous
Adrenaline Shoc 300/can Caffeine Anhydrous
BSN Endo Rush 300/scoop Caffeine Anhydrous, Green Tea, Green Coffee Beans
Raze 300/can Caffeine Anhydrous
Celsius Heat 300/can Caffeine Anhydrous
BSN N.O. Xplode 2.0 275/scoop Caffeine Anhydrous
Reign Total Body Fuel 300/can Caffeine Anhydrous
Rockstar Xdurance 300/can Caffeine Anhydrous
Speed Stack 250/bottle Caffeine Anhydrous
C4 Performance Energy Drink 200/can Caffeine Anhydrous
Cellucor C4 Extreme 200/scoop Caffeine Anhydrous
Cellucor C4 Pre-Workout 150/scoop Caffeine Anhydrous
Cellucor C4 Ripped 150/scoop Caffeine Anhydrous
Nitro Surge 180/scoop Caffeine Anhydrous
Insane labs Psychotic 300/scoop Caffeine Anhydrous
Promix P 200/scoop Caffeine Anhydrous
Evolution Nutrition ENGN 300/scoop Caffeine Anhydrous/ VitaShure Caffeine
Naked Energy Pre-workout 200/scoop Green coffee beans
DyNo by RSP Nutrition 300/scoop Caffeine Anhydrous
EndurElite PerformElite 225/scoop Caffeine Anhydrous/ Caffeine Pterostilbene Cocrystal
Vintage Blast Pre-workout 250/scoop Caffeine Anhydrous/ Micro-encapsulated caffeine
GAT Nitraflex 325/scoop ?
GNC Hyper-Ripped 150/scoop Caffeine Anhydrous
Legion Pulse 350/2 scoops Caffeine Anhydrous
IdealLean Pre-Workout 150/scoop Natural caffeine
iForce Maximize Intense 200/scoop Caffeine Anhydrous
Pre-Kaged 274/scoop Purecaf organic caffeine
Beyond Raw LIT 250/scoop Caffeine Anhydrous
Six Star Explosion 135/scoop Caffeine Anhydrous
Mr. Hyde Icon 250/scoop Caffeine Anhydrous
Mr. Hyde by Pro Supps 196/scoop Caffeine Anhydrous/ Dicaffeine Malate
Mr. Hyde Nitro X 375/scoop Caffeine Anhydrous/ Dicaffeine Malate/ Caffeine Citric Acid
Muscle Marinade 300/scoop 1,3,7-trimethylxanthine
Muscle Pharm Assault 250/scoop Caffeine Anhydrous
MuscleTech Neurocore 110/scoop Caffeine Anhydrous
Transparent Labs Lean 180/scoop Caffeine Anhydrous
NANO Vaporx5 190/scoop Caffeine Anhydrous
RARI Nutrition Infinity 350/scoop Caffeine Anhydrous
Octane Energy/Sports Drink 225/ scoop Caffeine Anhydrous
ON Gold Standard Preworkout 175/scoop Green coffee and green tea extract
ON AMIN.O. Energy 100/2 scoops Green coffee and green tea extract
Oxyelite Pro 100/capsule Caffeine Anhydrous
Pre JYM 300/scoop Caffeine Anhydrous
Redline RTD 250/bottle Caffeine Anhydrous
Cobra Labs The Curse 155/scoop Caffeine Anhydrous
Recon1 Total War 350/scoop Caffeine Anhydrous/ Dicaffeine Malate
Nutrex Research Outlift 350/scoop Caffeine Anhydrous
Jesse’s WakeUp Bar 350/bar Natural Caffeine
*This is the approximate amount of caffeine.

The Most Caffeinated Pre-Workout Supplement?

Of the pre-workout products we’ve been able to track in the list above, Mr. Hyde Nitro X by Pro Supps comes out as the leader.

Its 375 milligrams of caffeine per serving is from 3 different variations of caffeine.

  • Caffeine Anhydrous– The “typical” caffeine source found in most products.
  • Dicaffeine Malate- This is a combination of caffeine and malic acid. It is reported to be easier on the stomach and faster acting than caffeine anhydrous.
  • Caffeine Citrate– Caffeine is combined with citric acid in this version, which causes it to have faster results. This version has been used to treat asthma and severe migraines.

Be careful with Mr. Hyde, never take more than the recommended dose, and consider other caffeine sources you may be consuming.

Proprietary Blends

proprietary-blendMost of the workout supplements that we researched disguise the exact amounts of their active ingredients with the term proprietary blend. This simply is to prevent competitors from knowing exactly what their formulas are.

However, this isn’t very good for the consumer. Luckily, many of the brands have begun at least disclosing the caffeine content in their secret blends like the ones listed above.

With some other popular brands, it’s still a mystery.

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Props to Cellucor and a few other brands for clearly displaying their caffeine content on all of their labels. 

Too Much Caffeine?

With many of these products delivering 300mg of caffeine/serving, users should be cautious.

Pre-workout supplements made our Most Dangerous Caffeinated Products List as the 3rd most dangerous!

Especially if other caffeinated beverages or products are also being consumed during the same day such as coffee, tea, soda, and/or energy drinks.

It’s important for consumers to be aware of how much caffeine they’re consuming daily while using workout supplements. People with certain heart conditions, women who are pregnant, or those sensitive to caffeine should be extremely cautious when using these supplements. Consider caffeine-free alternatives and here’s a good list of the best pre-workouts without caffeine.

Research: More Caffeine Does Not Mean Better Performance

A 2020 study published in the Human Kinetics Journal showed that moderate caffeine had the same performance-enhancing benefit as larger doses of caffeine.

In other words, more caffeine didn’t equate to greater performance levels. You can use a resource like AnabolicBodies to find out about other supplements that will help you better reach your fitness goals.

The DMAA Warning

Some of the workout supplements above may have once contained DMAA. This substance has been banned by the FDA who says the following:

DMAA, also known as 1,3-dimethylamylamine, methylhexanamine or geranium extract, is an ingredient found illegally in some dietary supplements and often touted as a “natural” stimulant. DMAA, especially in combination with other ingredients such as caffeine, can be a health risk to consumers. Ingestion of DMAA can elevate blood pressure and lead to cardiovascular problems ranging from shortness of breath and tightening in the chest to heart attack. Dietary supplements containing DMAA are illegal and FDA is doing everything within its authority to remove these products from the market.

While most of these products are off the shelves, they could still exist online or in products that may have been sitting around awhile. Consumers should double-check the label before consuming any workout supplement.

See Also

Review and caffeine amounts of American Bodybuilding products.


If you would like to see your favorite brand listed here, please leave a comment and we’ll do our best to add it to the list of workout products above.

A special thanks to GNC for doing such a great job of posting product labels for all the products they sell.


  • Eudy, A. E., Gordon, L. L., Hockaday, B. C., Lee, D. A., Lee, V., Luu, D., ... & Ambrose, P. J. (2013). Efficacy and safety of ingredients found in preworkout supplements. American Journal of Health-System Pharmacy, 70(7), 577-588. Study link
  • Smith, A. E., Fukuda, D. H., Kendall, K. L., & Stout, J. R. (2010). The effects of a pre-workout supplement containing caffeine, creatine, and amino acids during three weeks of high-intensity exercise on aerobic and anaerobic performance. J Int Soc Sports Nutr, 7(10), 10-1186. study link
  • Morrison, L. J., Gizis, F., & Shorter, B. (2004). Prevalent use of dietary supplements among people who exercise at a commercial gym. International journal of sport nutrition and exercise metabolism, (14), 481-92. Study link