Magnum Opus Pre Workout Review

By | July 26, 2015

magnum opus pre workout

If you want to maximize the results of your time in the gym but don’t like caffeine then you need to become acquainted with Magnum Opus pre workout. The Opus pre workout by Magnum Nutraceuticals is a potent pre workout powder that is designed to give you a different and much more powerful sort of energy than most other pre workout products. The energy that most other pre workout drinks give you is in the form of central nervous system stimulation which really means your heart rate is elevated, your senses are heightened and you are generally in a higher state of arousal and excitement. Magnum Nutraceuticals Opus energizes your muscles rather than your central nervous system. It contains clinical doses of over a dozen scientifically proven performance enhancing ingredients that work to help push your muscles to their limits and also support their efficient repair and recovery.

Magnum Opus Pre Workout Ingredients

Instabolic pHuel

magnum opus pre workout ingredients

The proprietary blend used in this supplement is called ‘Instabolic pHuel’. Someone in the Magnum Nutraceuticals marketing team was no doubt very happy with themselves when they came up with this one! Not only does it sound great but it actually gives a good indication of the key concepts that differentiate this formula from the rest of the market. Magnum Nutraceuticals state that the 3 aims of the Opus pre workout are:

  1. To build muscle (or stimulate anabolism)
  2.  To raise muscular pH levels, and
  3.  to increase the rate at which the body produces energy when training and/or under stress.

When we look a closer look at the ingredients it becomes apparent that the actual purpose of this formulation is to build muscle and the other functions are just supporting this main aim. This comes as no surprise – the main reason anyone takes a pre workout supplement is to boost their performance in the gym and maximize the results of their workout, and the main reason anyone (well I would say the significant majority) are going to the gym in the first place is to build muscle.

So lets break down the key ingredients in the ‘Instabolic pHuel’ (I really love that – hopefully someone got themselves a good bonus for coming up with it!)

  • L-Leucine: This has a few purposes – some of it is converted to Glucose and provides energy to the muscles, it helps the body maintain high nitrogen levels and it also blocks the uptake of Tryptophan (the stuff in turkey that makes you sleepy after Christmas dinner) which helps to reduce fatigue.
  • CarnoSyn: CarnoSyn is a special patented form of Beta-Alanine that is higher quality and more effective than a straight Beta-Alanine supplement. Beta-Alanine is an important performance enhancing component that should be included in every pre workout supplement. Beta-Alanine supplementation increases intra-muscular Carnosine which is used in firing your muscles and it increases both aerobic and anaerobic endurance leading to longer workouts and more torn muscle fibres.
  • L-Citrulline Malate: When you’re pushing your muscles hard they need to be supplied with plenty of fuel and this fuel is transported to your muscles via your blood. Therefore it follows that maximizing the flow of this blood is very important. This is where the L-Citrulline Malate plays its part by increasing Nitric Oxide levels and promoting increased blood flow. It also helps the kidneys to remove Ammonia from the blood which is another benefit as increased Ammonia levels lead to fatigue which is not going to help you lift any more weight!
  • L-Glycine: Cellular level energy is what this pre workout promotes and this is another one of the ways that it delivers. L-Glycine helps the body with the conversion of glucose to energy and ensures plenty of glycogen is available for the muslces which in turn helps prevent any muscle catabolism which may have occured as a result of working the muscles so hard. It also promotes the natural creation of Creatine by the body.
  • Calcium and Sodium Bicarbonate: These two are there for support and make sure that the body gets the most out of all the other ingredients. They work to raise the pH levels (reduce the acidity) of both the stomach and the entire body. This in turn increases the amounts of the ingredients that make it into the bloodstream, delays the build up of lactic acid and increases performance of the muscles. Having an acidic pH level in the body reduces muscle mass and by making things more alkaline this stuff is making you stronger, basically. There are also quite a lot of acids in the other ingredients of this pre workout so some alkaloids are necessary to balance it out.

Hydrating Energy Blitzpre workout for energy

On first glance you may notice a bunch of different acids. These acids are all here to assist and enhance the Krebs’ Cycle, also known as the Citric Acid Cycle or Tricarboxylic Acid (TCA) Cyle. This cycle is basically the series of chemical reactions that happen in our cells in order for us to produce energy. One of the ways that they enhance the Krebs’ Cycle is by increasing the amount of ATP (adenosine triphosphate) produced by the mitochondria. ATP is used by the cells of the muscles for energy, hence it is rather important.

The phosphates also help the body with the production of ATP and Creatine. They also perform another important function of increasing the amount of oxygen transported to the muscles during heavy training.

The remaining components of the ‘Opus Hydrating Energy Blitz’ are all B group vitamins that make up a well balanced vitamin B Complex. B group vitamins play a very important role in the body’s metabolic processes such as the breaking down of carbohydrates, fats and proteins. Vitamin B6 is critical for BCAA (branched chain amino acid) utilization too.

Magnum Opus Pre Workout Review Summary

All in all this is a great pre workout supplement for anyone looking to build serious muscle. It is not recommended for people who are exercising purely for weight loss or who are looking for a supplement to boost their cardiovascular performance as it really is designed to build muscle. Also, it doesn’t provide the central nervous system stimulation that most other pre workouts do so you are going to have to motivate yourself. Maybe you could throw on your favorite Rocky movie to get you fired up before you head to the gym; that always gets me going. Eye of the tiger! Anyway this is a high quality pre workout and easily one of the best caffeine pre workouts for women and also for men, for that matter! If you’re interested in the best pre workouts for women then check this post: The best pre workout for women 2015 – top 5 supplements for females.

Pro tip: You can buy it directly from the Magnum website but you’ll often get it cheaper on

Magnum Opus Pre Workout Supplement
Magnum Opus is commonly used by bodybuilders and fitness models. Try it for yourself and see why!


Want reviews of other pre workoupre workout drink mixt products?

Check out some other reviews on the pre workout supplement reviews page.

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14 thoughts on “Magnum Opus Pre Workout Review

  1. richard

    this is a good review as it helps with people with what things they should look for in pre workout supplements. I love to exercise and I use supplement as well. Knowing what each acid does help me be aware what things i should look for. Thanks for the review.

  2. Esteban


    I tend to work out quite regularly but I never end up getting the results I want. I was wondering if it is absolutely necessary to buy supplements or actually if it is really essential to buy pre workouts?

    I only took one once when I didn’t really hit the gym properly yet and it felt like my heart was about to explode.

    Since then I was always afraid to buy some. I did however start buying protein and eventually mass gainers because I find it impossible to put on weight.

    The magnus pre workout seems to be what I am looking for since I want to gain and not necessarily lose weight.But that doesn’t mean I want to gain a lot of body fat either (is that a side effect maybe?).

    Very tempted to try this product thanks for the review. Still need someone to ease my mind a little though 🙂

    1. Brad Post author

      Hi Esteban,

      It’s not absolutely essential to use supplements but it really really helps to improve both your performance when working out and your results (fitness, strength and muscle gains etc) from working out.

      The Magnum Opus pre workout would be perfect for you if ‘you felt like your heart was about to explode’ after taking another pre workout in the past because it does not contain the central nervous stimulants responsible for this elevated heart rate.

      Good luck with your training!

  3. Marc Cantave

    I am actualy looking for a pre workout that can make my workouts improve. it’s a huge coincidence that I stumbled onto your site as I was having a conversation about this yesterday. Magnum opus must be a great product. I don’t know too many pre workouts that is one calorie per scoop so that’s great so thank you for this article.

    1. Brad Post author

      Thanks Marc – Magnum Opus pore workout will definitely improve your performance in the gym. Happy lifting!

  4. James

    I work out a fair bit and have tried a few pre workout supplements before like No Explode and they do give you a tremendous pump when you are working out. I have never tried this one though. How do you think the Magnum Opus pre workout compares to No Explode?

    1. Brad Post author

      Hi James, No Explode has a decent amount of caffeine and other central nervous system stimulants in it so you will feel a lot more pumped up than you will feel from Magnum Opus however in terms of performance magnum Opus is a bit better.

  5. David

    HI Brad
    I have never heard of a pre workout product that targets the muscles and not the central nervous system. It has never occurred to me that there was anything else involved than getting mentally pumped.

    Your article has me seriously considering how much is mental and how much is physical now and I can’t wait to try this product.

    Keep up the good work. This is an excellent review and I will be coming back to your site regularly.


    1. Brad Post author

      Thanks David I’m glad you got something out of it and appreciate your comments very much. Happy training!

  6. meherbani

    This is a great review on the Magnum Opus Pre-workout
    supplement. I never thought to think that it’s not a good idea to take supplements when one wants to lose weight. It makes sense that if you want to lose weight these supplements may build muscle and cause weight gain. I want to lose weight first and then gain muscle.

    At what time of a weight loss program do you feel is a good time to begin the muscle gain?


    1. Brad Post author

      I think muscle gain is or at least should be an integral part of weight loss. The more muscle you have the more calories your body burns. Don’t wait to lose weight before you work your muscles – work your muscles to help you lose weight even faster!

  7. Peter

    Hi there I read your article on the magnus opus pre-workout and after looking at the core ingredients it looks pretty standard to me. Maybe I read it wrong but what sets this one aside from the rest, you talked about it being less energising and not having as much focus on the nervous system which sounds good to me, is it some sort of new transport system for nutrients? I really am interested in your answer as most pre workouts are far to strong in stimulants for me.
    Thanks in advance.

    1. Brad Post author

      Hi Peter, I’m not sure what you mean but this pre workout is stim free so it shouldn’t be too strong for you. Happy lifting!


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