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Pre-Training Food Supplement
With B Vitamins
8.9  out of 10  (36 Reviews)

Product Overview

  • Increase in endurance performance1
  • Increase in endurance capacity2
  • Increase alertness and concentration3
  • Reduce tiredness during exercise4

1Caffeine contributes to an increase in endurance performance. The beneficial effect is obtained with caffeine consumption at doses of 3 mg/kg body weight at least one hour prior to exercise and only if any other caffeine consumption is avoided for at least 12 hours prior to consumption of the product in habitual caffeine consumers.

2Caffeine contributes to an increase in endurance capacity. The beneficial effect is obtained with caffeine consumption at doses of 3 mg/kg body weight at least one hour prior to exercise and only if any other caffeine consumption is avoided for at least 12 hours prior to consumption of the product in habitual caffeine consumers.

3Caffeine helps to increase alertness and to improve concentration. Do not exceed a daily intake of 300 mg of caffeine.

4Vitamin B6 and Niacin (Vitamin B3) both contribute to the reduction of tiredness and fatigue.

Ratings & Reviews

Overall Rating
36 Ratings
Verified Buyer Rating
8 Ratings
Average Flavor Rating
3 Flavors
Top Rated Flavor
Electric Blue Raspberry
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.
Oct 14, 2017
  • 9 Fruit Punch Frenzy

Pretty good pre workout . Decent pump ,focus and energy . Fruit punch frenzy flavor is very very good ! I like the little spice it gi you bc of the pepper In it . But wouldn’t buy this product again bc it’s a prop blend and it’s just an average pre workout.

Jul 08, 2017
  • 7 Fruit Punch Frenzy

This pre workout is amazing. Best workout hands down that I have had in a long time. Hour into the workout you still feel energized and ready to push hard. This one product has won me over with mutant. As far as the flavor goes it's just ok nothing special but you don't have to choke it down either. But really flavor is meaningless when the product works as good as this.

Nov 20, 2016
  • 10 Electric Blue Raspberry
Mar 08, 2016
  • 10 Electric Blue Raspberry

Picked some up a couple weeks ago and **** does it work. Its basically a well rounded pre-workout that does it all. I have a high tolerance to caffeine because of my coffee addiction but this stuff does the trick especially for those really late or early workouts the would probably just drag out.

Dec 11, 2015
No written review.
Nov 04, 2015

You will feel the extra push in every final rep

Jul 20, 2015
Verified Buyer
  • 1 Green Apple Crush

Green apple tastes like gasoline, It does give you a good pump, but does not last through end of workout. mixes well. usually love mutant products but not a great fan of this pre workout.

Jun 27, 2015
  • 8 Fruit Punch Frenzy

exelent i love this pre- work out

Apr 12, 2015
  • 10 Green Apple Crush

Bought this one from local store. This product is amazing!! All promises that are written on the tub work perfectly. Lots of pre worksout tastes like chemical but this one has really good taste nothing chemical. Also, it is very very strong indeed. I am starting 1 scoop but fully good enough. I have used Mr Hyde and Mayhem is way better on taste, strength and pump. Great pre workout!

Mar 01, 2015
Verified Buyer
  • 7 Green Apple Crush
Feb 21, 2015
No written review.
Jan 28, 2015

I used this product for almost a month now and it seems easier to stay in the gym longer and I have increased my volume during training! I have only tried the green apple so far and it tastes great and mixes easy!

Jan 07, 2015
  • 7 Green Apple Crush

Used it for a few months now. I don't find I get any real kick out of it. If I'm sleepy it will wake me up a bit but other than that I didn't gain any benefits from taking it. The taste is certainly nicer than some I've tried but it's definitely one of you have to chug down quick!

Sep 26, 2014
Verified Buyer
  • 8 Green Apple Crush

I was looking for a pre-workout that gave me just the right amount of energy and focus. I tried numerous different ones and was never completely happy. Some gave too much energy and not enough focus while others didn't produce enough energy. Mutant did an EXCELLENT job with finding the right balance of everything. I am truly happy with this pre-workout and look forward to trying other Mutant products. Not only do I get the energy and focus needed to get through my workout but I am stronger and put on more size. Muscles are engorged by the time my workout is completed. I highly encourage anybody to try this, you will not be disappointed. The flavor is harsh the first couple of times but you get used to it.

Aug 25, 2014
Verified Buyer
  • 8 Green Apple Crush

Tried this after watching some Rich Piana videos when he was still sponsored by Mutant, been searching for a new pre workout to use consistently. All in all, an above average product. Green apple taste was good, good focus and good pumps! However, i myself am very sensitive to thermogenics, and the capsicum really kicked in HARD on me. I take this before i leave for the gym which is 15 minutes from me, and i'm pouring out sweat by the time i get there. Tried doing half a scoop and it wasnt quite as drastic, but you lose some of the other ingredients obviously. but, you're in the gym to sweat, so get over it! very good product, little pricey, but you get what you pay for.

What's in MUTANT Mayhem

Serving Size: 1 Level Scoop (18g)
Servings Per Container: 40
Amount Per Serving
Calories 30       
Calories From Fat 4       
% Daily Value *
Total Fat (as MCTs) .5 g 1%
Total Carbohydrates 6 g 2%
Sugars 0 g 0%
Calcium 190 mg 19%
Vitamin B3 (Niacin) 50 mg 250%
Vitamin B6 (PYridoxine HCL) 5 mg 250%
Phosphorus 70 mg 7%
Sodium 35 mg 2%
Potassium 120 mg 3%
Magnesium 90 mg 23%
MAYHEM Proprietary Blend 18,000mg **
Power Strength Complex™ 11,000mg **
Waxy Maize Starch, Creapure® Creatine Monohydrate, L-Arginine HCL, Carnosyn® Beta-Alanine, L-Aspartic Acid, MCTs (From Fractionated Coconut Oil), L-Citrulline Malate 2:1, D-Ribose, Papain 2000, Albion® Creatine MagnaPower® Creatine Magnesium-Chelate, Nicotinic Acid, Pyridoxine Hydrochloride, Curcumen/Turmeric Complex
Hyper-Stim Matrix ™ 2,960mg **
Micronized Taurine, Glucuronolactone, Pyruglutamic Acid (Pidolic Acid), L-Tyrosine, Coffea Arabica Extract (97% Caffeine), Grapefruit Extract, Micronized CH-19 Sweet Red Pepper/Capsicum Annum Extract, Cinnulin PF® Cinnamon Extract, Raspberry Extract
Lactic Acid Buffer Blend 975mg **
Calcium Carbonate, Calcium-5-Lactate, Potassium Citrate, Tricalcium Phosphate, Micronized Bicarbonate, Magnesium Glycerophosphate, Magnesium Oxide, Quercetin
* Percent Daily Values are based on a 2,000 calorie diet.
** Daily Value not established.
Other Ingredients:
Malic Acid, Citric Acid, Silicon Dioxide, Natural & Artificial Flavors, (May Contain Soya Lecithin), Sucralose, Acesulfame Potassium, Tartrazine (E102), Brilliant Blue FCF (E133).
Contains coconut, soy and corn ingredients. Produced on machinery that also handles the following ingredients, and this product therefore may contain: milk, wheat, egg, peanuts, tree nuts, sesame seeds, sulphites.

Directions For Mayhem: As a food supplement, mix 1 scoop with 8-12 fl. oz. of cold water and consume 10-15 miutes before training.


Contains caffeine. Not recommended for children or pregnant women.

For Green Apple flavour, Tartrazine (FD&C Yellow 5) may have an adverse effect on activity and attention in children.

Do not exceed the recommended daily dose. Food supplements should not be used as a substitute for a varied diet and a healthy lifestyle. Store out of the reach of young children. Consult with a qualified healthcare professional before taking this product if you are pregnant, nursing, under 18 years of age, or if you have any known or suspected medical condition(s). Store in a cool, dry place.

Food Supplement with Caffeine and Sweetener

Made in Canada

* 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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