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

SupplementCaffeine (mg/serving)Caffeine source
ABB Speed Stacked Pumped300/bottleCaffeine Anhydrous, Guarana
About Time AUX90/scoopYerba Mate’, Guarana, Green Tea
BANG Energy Drink357/canCaffeine Anhydrous
BPI 1.M.R300/scoop*Caffeine Anhydrous/ Yerba Mate’
BPI B4300/capsule*Caffeine Anhydrous
BSN Hyper Shred180/capsuleCaffeine Anhydrous
BSN Endorush200/bottleMethylxanthine
BSN Endorush Xtreme250/bottle*Methylxanthine
BSN Hyper FX270/scoopCaffeine Anhydrous
BSN Advanced Strength N.O. Xplode 2.0225/scoopMethylxanthine
BSN N.O. Xplode RTD200/bottleCaffeine Anhydrous
BUILD N.O.200/scoopCaffeine Anhydrous
BUZZ EHPlabs200/scoop*Caffeine Anhydrous
Cellucor C4 Extreme135/scoopCaffeine Anhydrous
Cellucor C4 Pre-Workout150/scoopCaffeine Anhydrous
Cellucor C4 50x200/scoopCaffeine Anhydrous/ Caffeine Pterostilbene Cocrystal
Cellucor C4 Mass150/scoopCaffeine Anhydrous
Cellucor C4 Ripped150/scoopCaffeine Anhydrous
Cellucor M5 Extreme135/scoopCaffeine Anhydrous
Craze80/scoop*Caffeine Anhydrous
CytoSport Monster Pump150/scoopCaffeine Anhydrous
DyNo by RSP Nutrition400/scoopCaffeine Anhydrous, Dicaffeine Malate
Force Factor BRX100/2 scoopsCaffeine Anhydrous
GAT Nitraflex325/scoop?
GNC Amp (Pre-Post)400/3 tabletsGuarana, yerba mate, tea, Caffeine Anhydrous
GNC Raw Ravage200/scoopCaffeine Anhydrous
IdealLean Pre-Workout150/scoopNatural caffeine
iForce Maximize Intense200/scoopCaffeine Anyhydrous
Image Sports ALARM300/scoop*Caffeine Anhydrous
Jack3D 125/scoopCaffeine Anhydrous
Juggernaut HP 150/scoopCaffeine Anhydrous
Maximum Shred50/capsule or 150mg/max serving per dayCaffeine Anhydrous
Mr. Hyde by Pro Supps419/scoopCaffeine Anhydrous, Dicaffeine Malate, Caffeine Citrate
Muscle Marinade300/scoop1,3,7-trimethylxanthine
Muscle Pharm Assault300/scoopPterostilbene-Caffeine
MuscleTech Neurocore110/scoopCaffeine Anhydrous
MuscleXplosion60/pouchCaffeine Anhydrous
NANO Vapor Hardcore156/scoopCaffeine Anhydrous
No2 Red Hemo Surge200/.5 scoop*Caffeine Anhydrous
Octane Energy/Sports Drink225/ scoopCaffeine Anhydrous
ON Gold Standard Preworkout175/scoopGreen coffee and green tea extract
ON AMIN.O. Energy100/2 scoopsGreen coffee and green tea extract
Oxyelite Pro100/capsuleCaffeine Anhydrous
Pre JYM300/scoopCaffeine Anhydrous
Redline RTD250/bottleCaffeine Anhydrous
Ripped Freak200/scoopCaffeine Anhydrous
SportMax Preworkout Shot140/bottleCaffeine Anhydrous
Panic155/2 scoopsCaffeine Anhydrous
*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 by Pro Supps comes out as the leader.

Its 419 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.
  • Caffeine Pterostilbene Cocrystal – Combining caffeine with Pterostilbene (a naturally occurring compound in blueberries) causes the caffeine to be released more slowly into the bloodstream over time.

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. Brands like MusclePharm, Animal Rush, SuperPump, Black Powder, HemoRage, Muscle Warefare, and Bull Nox still do not disclose how much caffeine is in their products.

Props to Cellucor 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, woman who are pregnant, or those sensitive to caffeine should be extremely cautious when using these supplements.

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.

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  • pravi

    It contains 500 mg DMA..explained above to be illegal

  • pravi

    Sry tht ws DMG..ooops..

  • Jacob

    I used NO Xplode Caffeine free

  • sewer Dwayne

    Bring EPHEDRAN back!

  • Ted

    Some are now using Ephedra Viridis Powder which is legal and works pretty well. I just reviewed RhinoRush which is one such product. They also sell a pre-workout powder.

  • mary b

    I’ve been working out for about 6months now and have taken 9 different pre work outs. Bullnox ain’t bad – there’s a quick tolerance build up for it. The Dr. Max Powers Anabolic Stack is the most effective I’ve ever taken, few ingredients but alot of it in one serving. I’m not saying to take my word but I’m 25 and since I’ve taken the Anabolic Stack I’ve gained 80lbs on bench in barley 2 months.

  • Swole Gorilla

    Which one has a banana flavored version? I’m not joking either

  • Meat puppet

    My cock has banana flavoring

  • Wayne Gormley

    Ted has dmaa been removed from c4 extreme?

  • Ted

    According to Cellucor’s site and Body Building . com it looks like C4 Extreme has been discontinued. There may be old stock floating around and it could still contain DMAA if it did before. Their new C4 Explosive energy doesn’t contain it.

  • Ted

    I just checked the C4 extreme still for sale on amazon and it does not contain DMAA.

  • Tom

    The pre workout im using is optimim nutrion one. Was just wondering if all the ingredients on it are safe?

  • Tom

    Also how many times should i use it a week?

  • Ted

    All the ingredients in ON Gold Standard Preworkout are safe in the quantities included in their recommended dosage. The caffeine content is 175 mg per serving. You should take the product only before you workout, so it depends on how many times you workout a week.

  • Allen

    I use rsp nutrition dyno and the caffeine says 400!! Is that correct and is it safe?

  • Ted

    Hi Allen, yes that’s correct and I added it above. You may want to be careful as it also contains some other stimulants besides caffeine. Perhaps start with 1/2 a dose and see how your body handles it during the stress of a workout.

  • Bailey Gallagher

    Hi guys just thought I’d share my experience with mr. Hyde pre workout. Took it for the first time yesterday and felt progressively worse throughout my workout. About 45 mins in I had to go to the locker and sit on the bench gasping for air trying to catch my breath. Heart rate and blood pressure were off the charts and entire body was shaking with no feeling in face or extremities and had to be taken to the hospital. Wouldn’t recommend this one

  • kimballbasil

    Workout supplements products are helpful for athletes and in the gym, Its such a great information is sharedhere regarding pre workout supplements and how its help to gain muscles and extra workouts. Pre workout supplements are researched for the active ingredients.

  • Alex

    Hey! I was reading the article about Pterostilbene-Caffeine, and I saw that MP Assault uses it in its formula… does the MP Assault still has 300mg/scoop even using the Pterostilbene-Caffeine??

  • Alex

    I’ve contacted their Customer Service and they replied they have 250mg of Purenergy/scoop, so, it probably has something around 125mg off caffeine/scoop….

Last Modified: October 16, 2017


  • 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
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