Review of Pre Jym Pre-Workout Supplement

A review of the Pre Jym pre-workout supplement product. Is it the best? It just may be.

Rating: 5 (out of 5)

Welcome to this review of the Pre JYM pre workout supplement product. The USP (unique sales proposition) and tagline of this product is, “Pre-Workout Powder Powerhouse; Scientifically Advanced All-In-One Formula for Improved Workouts.”

There are many pre-workout supplement products reviewed on this site (you can see them here). And as you probably know, the bodybuilding supplement space is highly competitive and dominated by behemoths like MusclePharm and Optimum Nutrition.

Stoppani Supplement Science is not a large company but seems to be producing products that compete well head-to-head against formidable competitors like Optimum Nutrition. It appears that its owner and product formulator, Jim Stoppani, PhD, really does seek to adhere to the USP to make his products, “scientifically advanced.”

It seems to be working. One of Jym Supplement Science’s products has garnered a 9.9 out of a possible 10.00 with customer reviews on a popular bodybuilding site. Anything 9.5 is considered stellar and to receive a 9.9 is exceedingly rare.

The company was founded and is run by Jim Stoppani, PhD. Dr. Stopanni has a doctorate in exercise physiology from the Yale University School of Medicine. He is also the former Senior Science Editor stabilizedat Muscle And Fitness, the largest fitness magazine in the world. As alluded, Stoppani personally formulated the formula for Pre-JYM and Post JYM products including his new protein supplement Pro JYM and multivitamin Vita JYM were designed by him as well.

Stoppani is also the author of “Jim Stoppani’s Encyclopedia of Muscle & Strength” which you can preview by clicking on the preceding link.

Let’s now delve into this Pre-Jym supplement product product by Jym Supplement Science.

Pre Jym Product Features & Benefits

One negative with the Pre-Jym product is that it is made by a very small company. It does not have NSF Certified for Sport certification. What is “NSF Certified for Sport” mean? It means that a company’s in-house manufacturing operation have been registered under the NSF International, The Public Health and Safety Company, current Good Manufacturing Practices (cGMP or GMP) Program.

It is a certified indicator of quality. (Pharmaceutical cGMP compliance is the highest standard possible.) In most instances, I would say this is a significant detriment if a company doesn’t have this certification. However, there a few exceptions and this may be one of them.

Being small makes a company more nimble and more concerned with every element of a Jim Stoppani, PhDproduct’s creation and marketing so as to get a foothold in the marketplace. Jym Supplement Science was founded and is managed by Jim Stoppani.

He asserts that he personally has created and overseen all elements of his products. (That certainly is not the case with the other bodybuilding supplements in the market.) Moreover, he is probably the only CEO of a company who will actually take questions from his customers and answers them.

Dr. Stoppani says you can contact him via his Twitter account or via his Facebook page.

Every ingredient I use is proven in the laboratory and the gym to be effective and safe. After all, I am making these supplements for myself.

So, what makes Pre-JYM special? It has key nutrients all in one package — that is its greatest selling point aside from the fact that many of its users say it works and works well. So, what are some of those key ingredients?

Betaine, BCAAs, beta-alanine, creatine, tyrosine and citrulline malate. Most pre-workout formulas don’t have beta-alanine and creatine. Both are powerhouses for muscle synthesis and this is notable. In addition, its competitors have some of those nutrients but not all. Pre-JYM is the only pre workout supplement that has all of them. That is a distinct competitive advantage and is one of the reasons why it has proven to be so successful so fast.

Let’s go through the ingredients one by one. Pre-JYM has:

  • Full doses of 13 science-backed ingredients
  • 6 grams of citrulline malate to promote better muscle endurance and bigger muscle pumps
  • 6 grams of BCAAs in the 2:1:1 ratio best for blunting muscle fatigue, boosting muscle performance, and increasing muscle growthpre jym ingredients
  • 2 grams of creatine HCL for greater strength, endurance, and muscle growth
  • 2 grams of CarnoSyn® beta-alanine to boost muscle power, strength, endurance, and muscle growth
  • 1.5 grams of betaine for greater power and strength during workouts
  • 600 milligrams of N-acetyl L-cysteine to blunt muscle fatigue and keep you training stronger and longer
  • 500 milligrams of betavulgaris L.(beet) extract to provide real nitric oxide donors for bigger pumps and better energy
  • 300 milligrams of caffeine to boost alertness and drive, increase muscle strength and endurance, during workouts for greater training intensity
  • 150 milligrams of AlphaSize® alpha-GPC for better drive, focus, and strength in the gym
  • 50 micrograms of huperzine A to increase mental focus and establish a stronger mind-muscle connection
  • 5 milligrams of BioPerine® to enhance absorption of the active ingredients in Pre JYM for even better results (BioPerine has been proven in a clinical study to dramatically enhance efficacy of other nutrients)

Dr.  Stopanni says that all of the 13 ingredients are combined in “proper, powerful doses” for maximum effects.

Some of the things Pre-Jym doesn’t have are concentrates or abbreviated formulas. What does that mean? It basically means that you get the full, unabbreviated, complete ingredients without any fillers or masking agents designed to serve as fillers. With Pre-Jym, Stoppani says, you get a complete product with proper doses.

Pre JYM is research made real. It’s pure pre-workout fuel.

Regarding the product options, Pre-Jym comes in two flavors, cherry limeade and raspberry lemonade. It also is only available in 20 servings at this point in time.

Side Effects of Pre JYM

Are there any reported side effects of Pre Jym? No, not really. Creatine will, for some, cause involuntary, localized twitching of muscle fibers but it’s not harmful (I’ve experienced this quite frequently myself). Pre Jym appears to be completely safe for long-term usage. Moreover, there are clinical studies that confirm creatine is safe for supplementation purposes. One  negative regarding creatine supplementation was discussed by the Mayo Clinic. They say, “Creatine has been associated with asthmatic symptoms and warns against consumption by persons with known allergies to creatine” (Source:

That said, creatine has been used for decades and is regarded by its practitioners as well as scientists as generally safe — especially when used according to manufacturer’s instructions. In essence, this product is safe. Moreover, creatine is not the only ingredient in this pre-workout supplement.

Lastly, some highly refined creatine will cause stomach upset in some. However, this pre workout product uses creatine HCL, not creatine monohydrate and has not been reported to cause stomach irritation.

How Much Should You Expect to Pay?

Pre-Jym sells for $34.87 USD. It is only available at here.

Does Pre-Jym Have a Guarantee?Product guarantee

This product is guaranteed by its maker but like most supplement companies, it defers to its seller and it only is sold currently by

Pre-JYM Consumer Reviews

On, this product has been reviewed 974 times (as of this writing) with an average score of 9.5 out of 10.00. That is stellar. Anything 9 or above is excellent but 9.5 or above is really indicative of a popular product, and it wouldn’t get that kind of rating if it wasn’t working.

That said, below are a few testimonials taken from that site.

by Buettnaj
Rating: 9 out of 10
This was my first pre-workout I have tried. I wanted a pre-workout that I knew I could trust and wasn’t wasting my money on. So with that being said, I love this product. It has all the necessary pre workout supps you need, most notably creatine, beta alanine, BCAAs, and 300 mg of Caffeine. I have tried both flavors and Cherry Limeade is most definitely the better of the two. I have been taking the pre-workout every workout since I started using it over 3 months ago and the caffeine still hits me every time. One of the my favorite pros is the fact that there is zero crash; it’s just steady energy for an hour or two after your workout is over. With that being said, if you workout at night and take this pwo, you may have trouble falling asleep. I know I do. Cons: I dislike the sizing of the container. I’m getting sick of reordering every month and having to waste 5 bucks on shipping. The only reason I rated this a 9 and not a 10 is because this is the only pre-workout I have used and as a result, my opinion is biased. And because of the one size container. Definitely give pre jym a try. There are no suspect stimulants in it. Take a look at Jim’s youtube vids on pre jym for some good info before you buy.

by Jorryk7
10 out of 10
Great product so far, I like it just as well as NO-Xplode, which is surprising, but in a different way. This product is well made and I really feel a pump when I use it. Update: After one month of taking this pre-workout I have noticed far better results than NO-Xplode, and the surprising part is that the focus has not decreased with continual use. A great product!

by Dasmio3
10 out of 10
I have tried both the cherry limeade and raspberry and they are both delicious! I have been using this product for about 2 1/2 months now and it is amazing. I have not built a tolerance to it. It allows me to power through my workouts, no jitters, no crash. Amazing! Highly recommend. Best pre workout I have ever used. I am exciting to try post jym next!

10 out of 10.
Great products. Really amazed at how well they work. Kudos to you. I really think you make the best bodybuilding supplements on the market today.

10 out of 10
Nothing but praise for this product. JYM101 says to use it wisely and I do. I like the fact that it is based upon good science. That is important.


  • This product is designed by a PhD scientist who has extensive experience in supplement science
  • This product sells very well
  • This product is widely considered to be among the very best pre-workout supplements on the market today by customers
  • It has a high rating with actual customers and many praiseworthy customer reviews
  • It is highly complementary when combined with other core muscle building supplements


  • Stoppani Supplement Science products are not made in GMP-compliant facilities
  • Has acesulfame potassium, an artificial sweetener 200x sweeter than table sugar (sucrose)
  • Has Sucralose, more commonly known as Splenda, an artificial sweetener


Where Can I Buy Pre-Jym?

pre jym pre workout supplementYou can buy it here, but you are free to choose. Jym Supplement Science says, “JYM combines real science with real ingredients to deliver unreal results. Pre JYM, my cutting-edge pre-workout product, is poised to revolutionize the pre-workout category.”

Is it true? What’s the judgment regarding this product? In my opinion, this is the best pre workout supplement on the market today. It produces results that are quantifiable, doing just what it claims to do, and that is rare in the supplement industry.

I hope this review of the Pre JYM pre workout supplement product has been helpful to you.

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