Pre Jym Pre Workout Review – 2 Week Long Review

Bottle of Pre Jym Pre Workout

Pre JYM is JYM Supplement Science’s cutting-edge pre-workout product. That is what it says on their website anyways. The supplement is supposed to be so good that they don’t need any type of flashy marketing and the product will speak for itself.


  • Price: 20 servings $39.99, 30 servings $49.99
  • Best Place to Buy:
  • Size of Container: 520g (1.1lb) or 780g (1.7lb)
  • Serving Per Container: 20 or 30
  • My Rating: 7.5/10

One of Pre JYM’s main selling point is that their product has no proprietary blends and that all 13 of the ingredients that is used in their pre-workout is listed with all the exact doses of each ingredient that is in the product.

The other point is that the doses are the correct doses that your body needs. All the 13 ingredients that they have included into Pre JYM are designed to get your body ready for that intense workout.

Well, about 3 weeks ago I picked up a bottle of Pre JYM pre-workout Refreshing Melon flavor to test out because I wanted to see what all the hype over the product was. There were some websites that had it as their number 1 ranked pre-workout, and the reviews seemed to be mostly positive so I wanted to give it a go.

So I actually ended up testing this product for about a week using various dosages for reasons I will tell you in a little bit. The directions on the bottle are 1 scoop with 12-32oz of water 30-45 minutes before your workout. My first thought here was wow I do not want to drink 32 oz of pre-workout.

The directions also state that I should drink the pre-workout over the course of 15-30 minutes. So if it takes me 15-30 minutes to drink the pre-workout and I have to wait another 30-45 minutes it could be 45 minutes to an hour before I can start my workout. (Boy I’m going to have to start drinking this an hour before I get off work so I can be ready to workout when I get home).

Pre JYM Ingredients

Well let’s take a quick look at the label of Pre JYM and see exactly what 13 ingredients are inside this pre-workout:

  • Creatine HCI 2g – Most of the research that has been done on creatine has shown it to be beneficial and a few shows it has no significant benefit at all. Most of the research shows that creatine could help with muscle growth, workout performance, and increased strength. I personally take creatine anyways so this is a nice addition to have, some people might not like that it is included in the ingredients.
  • Beta-Alanine 2g – Ah, the non-essential beta-amino acid is that causes that tingling feeling you feel on your skin when you take pre-workout. Research has shown that beta-alanine can help increase your workload and help you maintain your strength for longer periods of time into your workout. Research has also shown that it works extremely well with creatine and paired up could help increase more muscle mass.
  • Betaine 1.5g – Betaine is the amino acid that has shown to promote muscle gain and help with fat loss by increasing your body’s protein production and helping promote protein synthesis. Research has shown it has many benefits and could help increase muscle strength, so this ingredient is a good addition to the pack.
  • Taurine 1g – You might have seen this ingredient on a lot of energy drinks that are available in the market today. Taurine is an amino acid that has shown to be able to enhance your energy levels during intense training, although the reports are mixed on how effective it is, since you are taking beta-alanine it could cause a deficiency in taurine so this is good to have.
  • N-Acetyl L-Cysteine (NAC) 600mg – NAC is a modified amino acid that has many uses as a medicine to prevent an overdose of Tylenol (acetaminophen) and treat carbon monoxide poisoning. How it benefits you for your weight lifting, it is supposed to help reduce fatigue during exercise and help with the recovery process.
  • Alpha-Glyceryl Phosphoryl Choline (alpha GPC) 150mg – Although studies have been limited alpha GPC has shown to provide small spikes in growth hormone production. This has drawn the interest of many athletes so far and early research looks promising.
  • Citrulline Malate 6g – This dietary amino acid is known to help reduce fatigue and improve endurance during your weightlifting routine. This amino acid is found in many fruits and is involved in the creation of cellular energy.
  • Beta Vulgaris (Beet Root Extract) 500mg – There are many benefits that come from beetroot extract but one of them is a boost in your nitric oxide levels. This relaxes the blood vessels and helps deliver more blood flow to parts of your body like your muscle fibers. This, in turn, helps you work out longer, with great exertion, and less fatigue.
  • Branched-Chain Amino Acids (BCAAs) 6g – These are the three crucial amino acids when it comes to muscle building. The three amino acids leucine (3g), valine (1.5g), and isoleucine (1.5g) are known to be able to not only aid in muscle growth and repair but also boost energy levels, delay muscle fatigue and even help when it comes to fat loss.
  • L-Tyrosine 1.5g – Tyrosine has shown to be able to help reduce fatigue, boost performance, and keep you focused during your workout. It works by producing catecholamines such as dopamine and adrenaline. Catecholamines are known to produce an anti-stress effect which is prolonged by tyrosine.
  • Caffeine 300mg – My last pre workout review I mentioned that an average cup of coffee has about 100mg and a 16 oz can of Monster energy drink contains roughly 160mg. This 300mg of caffeine is a little more than your average pick me up.
  • Huperzine A 50mcg – Huperzine A is a compound that is extracted from the plant Huperzia serrata from the Huperziceae family. This compound is own as an acetylcholinesterase inhibitor, which means it stops it from breaking down acetylcholine like it normally does. This compound is known to help nerve impulses to the muscles be faster and more synchronized. This also helps with reducing muscle fatigue and increase strength.
  • Black Pepper Extract (Piper Nigrum) 5mg – Black pepper extract is known to be able to help promote nutrient absorption. Naturally with all these other ingredients in there the extra absorption could be of help.

The Taste

The flavors of Pre JYM has definitely expanded over the years, for this review I choose the refreshing melon flavor, but there are plenty of other flavors out there that you can get. ]

Pre JYM comes in 8 different flavors:

  • Black Cherry
  • Cherry Limeade
  • Natural island Punch
  • Orange Mango
  • Rainbow Sherbert
  • Raspberry Lemonade
  • Refreshing Melon
  • Strawberry Kiwi

So for me personally, now this could be different for some of you, I don’t like to drink a lot of pre-workout so I always use the minimum amount of water that is listed on the directions. For Pre JYM this was 12oz of water so how did it taste?

Whenever I take pre-workout I normally start with half a scoop just to see how I feel with it on day one before adjusting the days after. So with 12oz of water and half of the dose of Pre JYM, it tasted good, the flavor wasn’t too strong or sweet.

On the next day when I took the full scoop like the directions suggested the flavor was extremely strong. I understand why the directions say 12oz – 32oz of water now. I just can’t see myself drinking 32oz of pre-workout before I start my workout.

So if you are taking the full one scoop recommended dose the taste is kind of strong so you might have to mix in more water for it to be easier for you to drink. I had a hard time so I was just drinking it slows, which I guess is fine since on the directions it tells you to drink the pre-workout over the course of 15 to 30 minutes.

The First Feels

This is where things get a little interesting. Normally after taking pre-workout after about 30 minutes, I start feeling the first effects of the pre-workout and that is when I know ok it’s time to go workout.


Well on the first day with half of the dose, 30 minutes went by and I hadn’t felt anything yet but I still went to warm up to prepare for my workout.

An hour in, I never still really felt too much, I still progressed to start my workouts and at first honestly, I didn’t really feel the effects of the pre-workout that much. It wasn’t until I had got started on my second set of workouts where I felt a slight boost in my lifting.

I didn’t think too much of it, I knew I had taken only half the dose so naturally feeling it slightly was kind of expected. My tolerance for pre workouts generally tends to lean on the higher side I would just try again on my next workout with the full dosage.


On the next day because of my results from the first day I decided that I would take the full dose that is on the label of Pre JYM, which is a full scoop.

I waited for my usual 30 minutes, this time around I was kind of feeling the tingly pins and needles feeling on my skin, but it wasn’t too strong of a feeling. I continued to go do my warm-ups.

I did feel better on my workout this day. From the beginning to the end I did feel a bit of a boost, It wasn’t as much as I would’ve liked but it was something nevertheless.

Although it did help me with my workout and I did feel pretty decent during the workout I expected a little bit more.


On day 3 I decided to be a little bad and go over the suggested 1 scoop by just 1/4 of a scoop to see if maybe a little bit more would do the trick.

The taste was horrifying with 12oz of water and one and 1/4 scoop by the way. It was so strong I was sipping on it like I would be sipping a whiskey.

I felt better overall this day but it really just didn’t feel like it was doing as much as I had hoped.

This lead to the next 10 workouts in which I tested various doses of Pre JYM, on an empty stomach, with food in my stomach, had more water with it in hope of finding something that could help make it work a bit better,

The Workout

Testing this Pre JYM for over two weeks and nearly the entire bottle I never found a day when I felt truly just pumped up and focused on my workout like I have had in the past with different pre workouts.

I even made sure that it wasn’t just my body completely used to pre-workout making Pre JYM just feel less effective. I tested this by using Pulse pre-workout (which I normally use) once in the middle of the weeks that I was testing Pre JYM.

On the day I used Pulse, my workout felt smoother than ever, so it’s not my body.

Don’t get me wrong it didn’t totally not work, Pre JYM definitely worked. I was able to lift more weight easier for a period of time during my workout. I just didn’t feel that clean pump that you normally get from a great pre-workout.

I did feel better when I took the full dose or slightly higher than a full dose. Even though using more worked a little better than the actual dose. At the price tag of Pre JYM, you would want to be using less not more.

The Crash

I didn’t really notice a crash from taking Pre JYM, but at the same time I never even noticed getting pumped up enough to even notice I was crashing if I did.

The Caffeine in Pre Jym did make me more alert, some of the days I was a bit tired from a long day of work and after taking Pre Jym I felt wide awake and alert.

I didn’t feel like I got a crash after the caffeine boost went away either.

like always this does vary from person to person though.

The Verdict Is…

Well, I can’t say I recommend Pre JYM, just based on my experience with it. Don’t let that stop you from trying it out though, It has great ingredients that are backed by science.

It also has an ever growing number of great reviews at multiple different places that sell it online.

I didn’t feel too bad during the workout though but that slight pump is hard to justify the price of the bottle when I could just use Pulse and use half the dose and feel just a good if not better.

Like always pre workouts affect everyone differently. Some work better for some people but not other people. It is hard to know for sure unless you tried it. Pre JYM is honest about their ingredients and all of those ingredients are science-backed ingredients. Just because it didn’t work for me as I expected doesn’t mean it can’t work for you.

Have you tried Pre JYM? How do you like it? Let me know below. Thanks for reading and as always if you have any comments, concerns, questions, or suggestions let me know below.

About Tony 38 Articles
Tony is a California based health and wellness writer who has a passion for weightlifting, fitness, and nutrition. You can find him frequently publishing on when he is not at the gym working out, or at the movie theater watching the latest Marvel movie.


  1. Hey there!
    I was thinking about getting it to test it out as well.
    Now my only question would be if I can get used to the strong taste after a while because 32 Oz is really a bit much to drink pre-workout.

    • I found that the 32oz is too much to drink. I just think it is too much to drink of any form of liquid before you start a workout. I can only imagine all the liquid just slushing around your stomach as your working out.

  2. Glad to see that you actually did a physical test on this product and posted your results. In your opinion, do you think that pre-workout supplements actually work or is just a marketing hype?

    • Of course, I don’t write reviews on products that I haven’t tried out. There isn’t a way to be able to truly write a review without actually testing it out.

  3. Nice and straightforward review, I am going to try this Pre Jym now! thanks for the guide and information tony, you did a great job!

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