Pre-Workout Powder for Improved Workouts*
Pre-Workout Formula for Energy, Focus, Strength, and Endurance*
7.0  out of 10  (78 Reviews)
1 Size
30 Servings
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5 Flavors
Blue Raspberry
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Price: $26.99  ($0.90 / Serving)
Flavor Rating: 6.2

Product Overview

MusclePharm Assault. Energy + Strength.



Assault Sport recreates the pre-workout category with an exaggerated focus on strength & performance to more adequately fuel the athlete within. Anchored with Creatine Monohydrate, Assault Sport works to replenish the phosphate bond lost due to intense exercise, restoring what was once Adenosine Triphosphate (ATP) to re-energize and re-fuel your muscles allowing you to maintain your muscular endurance and increase overall energy expenditure.* Additionally, Creatine Monohydrate has the affinity for drawing excess water into the muscle cells, keeping your muscles hydrated, nourished, and full.* Alongside creatine monohydrate are Beta-Alanine and Betaine Anhydrous. Beta Alanine is known to buffer lactic acid that builds up as a result of strenuous exercise.* By reducing this build up, the body can combat muscle fatigue and extend your workout even longer.* Betaine Anhydrous can aid in improved protein synthesis.* Also featured in Assault Sport is the Muscle Fuel blend which contains L-Glycine, an amino acid, and precursor to creatine, which fights muscle degradation by boosting the body’s natural supply of creatine, as well as help deliver glucose to the muscle, and L-Taurine, which serves as the electrolyte regulator, ensuring a proper balance of electrolytes is delivered to the muscle.* Lastly, there is the Energy & Focus blend, which contains Caffeine Anhydrous, a central nervous system (CNS) stimulant that relieves drowsiness and restores mental alertness, and Acetyl-L-Carnitine, a carnitine compound known for transporting long chain fatty acids into the mitochondria to be converted as energy that also contains an acetyl group, which contributes to the production of the neurotransmitter, acetylcholine, known for improving mental focus, clarity, and the mind-muscle connection.*


  • Increased muscular endurance & strength*
  • Intense, focused energy and improved energy expenditure*
  • Delays muscle fatigue, fights muscle degradation*
  • Restores ATP levels and mental alertness*
  • Banned-substance tested
  • No proprietary Blends
We Live It. We Prove It. Banned Substance Tested. Informed Choice Approved.
Real Athlete's. Real Science.

Ratings & Reviews

Overall Rating
78 Ratings
Verified Buyer Rating
42 Ratings
Average Flavor Rating
5 Flavors
Top Rated Flavor
Strawberry Ice
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
  • 10 Fruit Punch

A mi me gustó es muy bueno

  • 7 Fruit Punch

Had a great 2 hour work out... but when it came time to sleep my heart was still beating fast had to go to the emergency i couldn't sleep... still at the hospital its 5:30 AM and my heart rate just started to slow down... this is the first time i use this pre-workout.. never again !!

Verified Buyer

I heard they changed the formula, so my review will be for the past one as i have not tried the new one, although if they follow the same path, the product is great. I got it very cheap at bb, got the grape flavor which was amazing, mixability was a wonder. To the product itself, great pre. Clean energy and focus, got me a nice pump and ready to rock cardio. No jitters, itches or whatsoever. Hope they didn't lose their track from the previous edition.

  • 10 Fruit Punch

An excellent re-formulation which delivers great energy/endurance & tastes much better than the original. I liked that 1 scoop delivers adequate fuel for light-moderate workouts and 2 scoops seemed perfect for heavier/long sessions; additional pump ingredients will need to be added. I certainly recommend Assault to everyone as it provides the endurance essentials & is naturally colored!

Verified Buyer
  • 5 Blue Raspberry

Wasn't aware Muscle Pharm changed the formula, removed all the good stuff, and decreased the amount of caffeine per serving. Not impressed with the change at all, I won't buy Assault again and will definitely think twice before buying other Muscle Pharm products.

Verified Buyer

DO NOT BUY. Have used Assault for 5 years. Just got my latest order. Not only has it been "reformulated," but serving size has been reduced to cover the diminished amounts of ingredients I was buying this for. Not to worry, they increased the amount of caffeine so that you May feel better during the workout. Garbage move. Last time buying anything from muscle pharm. Very frustrating

Verified Buyer
  • 6 Green Apple

I was expecting more out of the Green Apple, you mostly taste the water since the taste of the apple doesn't last long. When I mixed this up with my BCAAs watermelon I taste more of the watermelon than apple. I would try a different flavor than this next time.

Verified Buyer
  • 8 Strawberry Ice

Do not buy!!! Use to be the only product I would buy! They reformulated this year and this product is horrible. They also got rid of all of the flavours. They usually have good flavours and the strawberry ice is pretty decent. But it's a waste of money to buy this product. Will never buy again. Even tried the black assault and it's no good either. Time to try what everyone else has to offer again.

  • 8 Fruit Punch

I used it and I thought it worked ok the first time. In a short amount of time I found that I did not feel it kicking in anymore. I personally would try a different pre-workout.

Verified Buyer

This is a very good focus preworkout. Perfect for if you need to cycle off of something that gives you the jitters. I loved the focus it gave me and the pump

Verified Buyer
  • 4 Blue Raspberry
  • 6 Fruit Punch
  • 2 Green Apple
  • 8 Strawberry Ice
  • 3 Watermelon

For those of you looking for a pre-workout that doesn't give you the jitters this is it. I have tried so many pre-workouts and found that I really don't like the feeling some of them give you. This one does exactly what it says, focus, energy, drive. I would recommend this product.

  • 6 Green Apple

After trying several different top of the line pre workouts, this one Is the worst. Feels like drinking water and sugar. The kick fades after my third use, because my tolerance is high I don't feel the kick anymore. My body is pretty tolerated to pre workouts and coffee and so I felt I needed more of it to get that kick. Not recommended for casual pre workout users. Might be good for someone's first time taking pre workout. Not gonna buy this product again Unfortunately!


I have a jug of the newer formulation grape flavor, which they apparently do not sell anymore, that I am about to polish off. I have mixed feelings on Assault. I've used it several times, trying other pre-workouts in between and coming back to this one more than once. But, it does not feel as effective since they changed the formulation. Also, it does not mix very well anymore, after mixing it you can immediately watch a lot of it settle back down to the bottom and it won't dissolve no matter what. The stuff that doesn't dissolve is gritty and weird. So I'm straying again, trying a different pre-workout...we'll see if I come back to this or not.

  • 6 Fruit Punch
Verified Buyer
  • 10 Green Apple
  • 10 Watermelon

This was the first preworkout I ever used and after going and exploring others it's always the one I go back to. It gives the most consistent energy boost and I don't become as immune to it as with a lot of others. Will probably just keep using this forever. Also the watermelon and green apple flavors taste awesome.

What's in MusclePharm Assault

Serving Size: 11.5 g (1 scoop)
Servings Per Container: 30
Amount Per Serving % DV
Calories 0       
Total Carbohydrate 1 g <1%*
Sugars 0 g       
Vitamin C (as Ascorbic Acid) 300 mg 500%
Vitamin E (as dl-Alpha Tocopheryl Acetate) 40 IU 133%
Vitamin B6 (as Pyridoxine HCI) 20 mg 1,000%
Vitamin B12 (as Methylcobalamin) 50 mcg 833%
Strength & Performance
Creatine Monohydrate 3 g
CarnoSyn® Beta-Alanine 1.75 g
Betaine Anhydrous 1.5 g
Muscle Fuel
Taurine 1 g
L-Glycine 1 g
Energy & Focus
Caffeine Anhydrous 250 mg
Acetyl-L-Carnitine 250 mg
* Percent Daily Values are based on a 2,000 calorie diet. †Daily Value not established.
Other Ingredients:
Citric Acid, Natural And Artificial Flavor, Calcium Silicate, Silicon Dioxide, Malic Acid, Sucralose, Fruit and Vegetable Juice (color), Acesulfame Potassium.
ALLERGEN WARNING: This product was produced in a facility that may also process ingredients containing milk, egg, soybeans, shellfish, fish, tree nuts, wheat and peanuts.

Directions For Assault: Mix one serving (1 scoop) of Assault in 8-12 fl. oz. of cold water and drink 20-30 minutes before training. Do not exceed one serving per day.

Warnings: For healthy adults 18 years of age or older ONLY. Consult with physician, if using prescription or over the counter medications, or have pre-existing conditions like: high/low blood pressure, cardiac arrhythmia, stroke, heart, liver, kidney or thyroid disease, seizure disorder, psychiatric disease, diabetes, prostate enlargement/urination issues; or if taking a Monoamine Oxidase Inhibitor or erectile dysfunction medication. Discontinue use 2 weeks prior to surgery. In case of adverse reactions, discontinue immediately and consult health professional. Contains caffeine. Do not use; with caffeine/stimulants; alcohol, nitrates, under extreme conditions of heat, sleep deprivation or dehydration. Do not exceed recommended serving or use if safety seal is broken. KEEP OUT OF REACH OF CHILDREN.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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