Mutant Mayhem Review



This caught out attention on as it’s lised as a ‘pre-training food supplement’ – but we can’t see why it’s called a ‘food’ when it’s still a powder…

Anyway, as always, we’ll take a look into Mutant Mayhem, and see if it really is ‘super-loaded’.

Claimed to promote:

  • Endurance
  • Alertness and concentration
  • Fatigue

About The Company

Mutant are a UK-based company that was set up in 2006. They claim to be the ‘gainers choice  in over 85 countries worldwide’ – but this is the first time we’ve heard of them…

But as long as this pre workout contains good ingredients, we don’t mind how popular this company is.

The Ingredients and How They Work

We’re pretty shocked after seeing Mutant Mayhem’s ingredient list – we’re faced with numerous proprietary blends that all contain loads of ingredients…put your seatbelts on, because this will be a long review…only joking, we’ll only analyze the important ingredients to save us both from wasting our time.

If you look at the ingredient list below, you’ll see numerous ingredients clumped together under a title and a quantity – for example, the power strength complex is 11,000mg (which is massive), and contains over 10 ingredients.

So why’s this bad? Well, it’s always a risk not knowing the exact dosages of ingredients in supplements – in a nutshell, you won’t know whether it can cause side effects or work.

Remember: even an ingredient as safe as caffeine can cause side effects in large dosages. See for yourself:


Power Strength Complex

Remember that this is a proprietary blend – so you don’t know the exact dosages of each ingredients here.

Waxy Maize Starch 

Not much is known about this ingredient, but one thing’s for sure – it doesn’t really benefit your gym session. Let’s move on.

Creatine Monohydrate 

This is a great pre workout ingredient – it’s one of our favorites, as it’s shown to improve your strength and endurance in the gym.

It’s been around for decades now, and countless studies have proven that it works – you can’t argue against it. As a result, Creatine Monohydrate is one of the key ingredients we look for in pre workout supplements.

However, as it’s inside a proprietary blend, you don’t know how much is inside here (meaning it might not work, as you need at least 1,000mg per serving)

Arginine HCL

Also known as Arginine Hydrchloride, this is an ineffective ingredient in any pre workout. In a nutshell, Arginine has a poor absorption rate, meaning it’s useless when orally supplemented in pre workouts.


Although this is a common ingredient in pre workouts, we try to avoid it. Why? Because it’s commonly reported to causes paresthesia (tingling on the skin of your face, chest, hands, fingertips and toes).

Creatine Monohydrate offers the same benefit (enhanced endurance), so there’s no need to have both in here – and we’d choose creatine monohydrate every time.

Citrulline Malate 

We mentioned that Arginine is ineffective when orally supplemented – well, this is the better option, as it converts into Arginine once in your body.

Arginine actually plays an important part in your body, to increase blood flow (which results in intense muscle pumps) – which is why Citrulline Malate is one of our favorite pre workout ingredients.

However, as it’s inside a proprietary blend, it might not work – you need at least 6,000mg per serving.

See SupplementTester’s
Highest Rated Pre Workouts Here

Hyper-Stim Matrix 


Taurine is commonly believed to improve your energy levels (as it’s inside many energy drinks). However, it’s not shown to offer this benefit in any studies.

It can reduce cramping, but it’s not very useful apart from that. We believe this is more of a gimmick; in a nutshell, if taurine wasn’t inside energy drinks, it wouldn’t have been added into pre workouts – companies rely on you not knowing the truth (that it’s not very beneficial).


This is an ingredient that can improve your cognition, which can help you make the most of your gym sessions. However, caffeine also offers this benefit, so there’s no need for both – and we’d choose caffeine everytime (as it also improves your strength, endurance, and energy levels).

Coffea Arabica Extract 

We’re not sure why Mutant have added this instead of Caffeine Anhydrous (which is the tried and tested caffeine source in almost every pre workout and fat burner).

Anyway, Coffea Arabica Extract is marketed as being 97% caffeine – so it’s worrying that Mutant have added it into a proprietary blend. We mentioned at the start of this review that large dosages of caffeine can cause side effects – this is why jitters and energy crashes are quite commonly associated with pre workouts.

As a result, we avoid any pre workouts that don’t list the EXACT dosage of caffeine – as we don’t want to pay to suffer from side effects.

Sweet Red [Chilli] Pepper 

We’re also confused why Mutant has added this into their pre workout. In a nutshell, this is a great ingredient in a fat burner, as it can improve your metabolism.

However, it’s not going to improve your workouts in the gym. As Mutant Mayhem is a product designed to do just that, we’re not impressed here.

Raspberry Extract 

Also known as raspberry ketones, this is one of the biggest gimmicks in the supplements industry. It’s gained a lot of attention recently as a ‘superdrug’ to help you burn fat.

Well, the truth is – it doesn’t work. Not only that, Mutant Mayhem isn’t a fat burner, so it’s not even needed here.

Lactic Acid Buffer Blend

None of the ingredients in this blend have shown to improve your workout – so we’ll give you a quick overview instead of wasting your time by analyzing each one.

In a nutshell, the ‘lactic acid buffer blend’ contains calcium, magnesium, and potassium; although these can improve your general health, you’re paying to experience better gym sessions with Mutant Mayhem – and unfortunately, they won’t do much for this.

If you’re looking for an increase in these minerals, we recommend taking a multivitamin supplement, or following a well-planned diet that includes plenty of green vegetables (this is a more natural, and better way to get these minerals into your system).

So all you need to know about this blend, is that it doesn’t work to improve your gym sessions – making it useless in Mutant Mayhem.


Check out which ingredients work and which don’t in our
Pre workout ingredients guide –   

Side Effects

After analyzing the ingredients in Mutant Mayhem, there’s 2 things that can cause side effects – caffeine being in a proprietary blend (which can cause jitters), and Beta-Alanine causing paresthesia.

As a result, we stay away from pre workouts that contain caffeine in these blends – we always stay below dosages of 200mg per serving, to make sure we don’t suffer from side effects.

Paresthesia isn’t as bad, but it’s still uncomfortable enough to ruin your gym session – it’s something we avoid when possible.

Anyway, here’s what you might suffer from with Mutant Mayhem:

  • Jitters
  • Energy Crashes
  • Anxiety
  • Paresthesia

Pros and Cons


  • Contains a few core ingredients (citrulline malate, caffeine, and creatine monohydrate)


  • All ingredients in proprietary blends
  • Risk of side effects
  • Contains numerous ineffective ingredients
  • Not good value for money

Not what you’re looking for? See Our
Top Rated Pre Workout Supplements Here

Review Conclusion

Mutant Mayhem is a great example of why you should always choose quality over quantity – Mayhem have tried to make this look good by packing it full of ingredients – but most of them are ineffective and haven’t shown to work.

The reason why companies do this, is because not many people know every ingredient inside these supplements (so they don’t know that it’s not good value for money). This is why it’s important to do your research – reading reviews like this one is a great way to do that.

In a nutshell, we prefer pre workouts that contain 4-6 key ingredients, instead of over 10 useless ones. This will make sure that you get good value for money, and a product that actually works.

2 thoughts on “Mutant Mayhem Review”

  1. im no doctor or expert but i must say i am significantly stronger when using this and have better focus.
    do tend to crash like a brick though….
    maybe its all in the head and i dont want to discredit your findings, but i do feel like it has a strong effect on me, more so than most other pre-workouts.

    Rating: 3

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