Pre JYM
JYM

Pre JYM

Pre-Workout Powder Powerhouse*
Scientifically Advanced All-In-One Formula for Improved Workouts*
9.1 out of 10  (4,132 Reviews)
2 Sizes
30 Servings
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Product Overview

Pre-Workout Supplement of the Year Exclusive Bodybuilding.com Products
Jym Pre-Powerhouse Product

ADVANCED
PRE-WORKOUT
POWERHOUSE!

Trusted by Sport

Scientifically Advanced All-In-One Formula

The Power of Pre JYM
No Proprietary Blends

Look at the supplement facts panel on your favorite pre-workout product and you'll most likely see the term "proprietary blend." Supplement companies want you to think this means they've created a special blend of ingredients that magically work together to deliver unique results. Because this blend is so amazing, they have to keep the doses of each ingredient secret so no other company steals the formula.

The truth, however, is that propriety blends serve a different purpose. They allow supplement companies to hide how little of each ingredient they've actually put in a product. This results in cheap, underdosed, ineffective supplements.

Pre JYM doesn't use proprietary blends.

Proper Doses

For the reasons detailed above, many supplement companies are moving toward transparency and axing proprietary blends. That's a good thing. However, these companies are still guilty of grossly underdosing ingredients.

Take citrulline malate, for example. The research on this potent amino acid shows that you need 6 grams per dose. Most pre-workout products leave out citrulline entirely, and none of them provide anywhere close to 6 grams. Until now.

You may notice that many ingredients in Pre JYM can also be found in Post JYM post workout active matrix. These products are formulated to work as a system to provide you with the optimal dose of each ingredient to get you the best results*

No "Abbreviated" Formulas

An abbreviated formula is one that uses proper dosing of all ingredients, but only includes a few ingredients.

Take, for example, a pre-workout formula that includes beta-alanine, creatine, caffeine, and tyrosine. There's nothing wrong with it, but it could be made a lot more effective through the addition of ingredients like citrulline malate, betaine, and BCAAs, to name just a few. Why would companies not create the most robust formula possible? Because adding more ingredients costs too much money.

Pre JYM includes 13 ingredients that work in concert to prime the body for intense workouts, making it the most complete pre-workout supplement available.*

No Concentrates

Many companies also try to trick buyers by calling their pre-workout product "concentrated." A serving of one of these "concentrated" products can contain as few as 3 to 6 grams of powder. What kind of magic did they use to cram enough creatine, beta-alanine, citrulline, arginine, caffeine, and other ingredients into that tiny dose? They didn't use any magic, which is why all of those "concentrated" formulas also include proprietary blends. That's also why the serving size of Pre JYM is more than 26 grams. It contains 13 ingredients at proper, powerful doses.

Pre JYM Features
  • 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 promoting muscle growth.*
  • 2 grams of creatine HCL for greater strength, endurance, and the promotion of muscle growth.*
  • 2 grams of CarnoSyn® beta-alanine to promote 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, longer.*
  • 500 milligrams of betavulgaris L.(beet) extract to provide real nitrate 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.*
  • 300 milligrams of Alpha-Glyceryl Phosphoryl Choline (50%) for better drive and focus 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.*
Under the Hood

Pre JYM goes head-to-head with the five leading pre-workout products on the market today, and it smokes every single one of them.

PRE JYM FORMULA

LEADING COMPETITOR #1

LEADING COMPETITOR #2

LEADING COMPETITOR #3

LEADING COMPETITOR #4

LEADING COMPETITOR #5

Serving size: 26.5g

Serving size: 23g

Serving size: 6g

Serving size: 22.5g

Serving size: 5g

Serving size: 3.6g

CITRULLINE MALATE

6 grams

Dose is proprietary

Not included

Not included

Not included

Not included

BCAAS

6 grams

Dose is proprietary

Not included

Not included

Not included

Not included

CARNOSYN®
BETA-ALANINE

2 grams

Dose is proprietary

1.5 grams

Dose is proprietary

Dose is proprietary

Not included

CREATINE HCL

2 grams

Dose is proprietary

1 gram

Dose is proprietary

Dose is proprietary

Not included

BETAINE

1.5 grams

Not included

Not included

Dose is proprietary

Not included

Not included

L-TYROSINE

1.5 gram

Dose is proprietary

Dose is proprietary

Dose is proprietary

Dose is proprietary

Not included

TAURINE

1 grams

Dose is proprietary

Not included

Dose is proprietary

Dose is proprietary

Not included

N-ACETYL
L-CYSTEINE

600 milligrams

Not included

Not included

Not included

Not included

Not included

BEET EXTRACT

500 milligrams

Not included

Not included

Not included

Not included

Not included

CAFFEINE ANHYDROUS

300 milligrams

Dose is proprietary

135 milligrams

Dose is proprietary

Dose is proprietary

125 milligrams

Alpha-GPC

300 milligrams

Not included

Not included

Not included

Not included

Not included

As you can see from this table, the leading pre-workout formulas either lack some of the most critical pre-workout ingredients completely; include them at low, ineffective doses; or hide small doses behind secretive proprietary blends. Nothing on the market comes close to Pre JYM.

Under the Microscope

Let's take a closer look at each of the 13 ingredients and doses used to make Pre JYM such a pre-workout powerhouse.

6g of Branched-Chain Amino Acids (BCAAs)

  • The BCAAs are three amino acids —leucine, isoleucine, and valine—that share a common structure.
  • Unlike other aminos, BCAAs are used directly by the muscles as an energy source.*
  • Leucine is the most critical because it supports muscle protein synthesis (i.e., muscle growth).*
  • Valine supports the blunting of fatigue, allowing you to work out longer.*
  • The optimal ratio of leucine to isoleucine to valine in a pre-workout product is 2:1:1, exactly the ratio in Pre JYM.

6g of Citrulline Malate

  • Citrulline malate is composed of the amino acid citrulline attached to malic acid (malate).
  • In the body, citrulline is readily converted to arginine, and then to nitric oxide (NO).
  • Research suggests that citrulline increases arginine and NO levels in the body better than arginine itself.*
  • Arginine undergoes excessive breakdown by the intestines and liver. Citrulline does not, so whatever you consume is readily absorbed and put to use.*
  • Citrulline malate is also an energy booster backed by research.* One study reported that subjects consuming 6 grams of citrulline malate for 15 days experienced a 35% increase in ATP (energy) production during exercise and a 20% increase in phosphocreatine recovery between bouts of exercise.*
  • Research also suggests that subjects supplementing with citrulline malate before a chest workout could complete at least one to two more reps on most sets compared to subjects taking a placebo.*

2g of Creatine HCL

  • There are hundreds of studies suggesting that creatine supplementation supports significant gains in muscle strength and power, as well as muscle growth.*
  • Creatine HCL is made by attaching a hydrochloride (HCL) group to creatine.

2g of CarnoSyn® Beta-Alanine

  • Beta-alanine is taken up by muscle fibers and combines with the amino acid histidine to form carnosine.
  • Research suggests that carnosine supports increases in strength and power, improves endurance and recovery.*
  • One study suggested that four weeks of beta-alanine supplementation in boxers increased their average punching power in the last 10 seconds of a round by 2,000 percent more than those taking a placebo.* Being able to maintain punching power late in the round is similar to maintaining more strength and power later in your workouts, meaning you can lift more weight for more reps.*

500mg of Beta Vulgaris L. (Beet) Extract

  • Consuming beets (beta vulgaris), either by eating the whole beet, drinking beet juice or taking a beet extract, as in Pre JYM, has been suggested in numerous studies to enhance exercise performance.*
  • The performance benefits of beet extract include greater exercise endurance and less fatigue.*
  • This means that during a typical weightlifting workout, it could allow you to complete more reps with a given weight, and allow you to better maintain rep ranges and strength toward the end of the workout.*

1.5g of Betaine

  • Betaine, also known as trimethylglycine (TMG), is a modified version of the amino acid glycine.
  • Betaine supplementation has been suggested in clinical studies to improve muscle strength and power production, increase the number of reps done with a given weight, and improve endurance.*
  • University of Connecticut researchers reported that supplementing with 1.25 grams of betaine twice per day for two weeks increased bench press power by 20 percent and muscle force on the bench press by 25 percent.*
  • Betaine has also been suggested to significantly increase protein synthesis following workouts as compared to a placebo.*

300mg of Alpha-Glyceryl phosphoryl choline (Alpha-GPC)

  • Alpha-glyceryl phosphoryl choline (alpha-GPC) is a naturally occurring phospholipid compound that plays a critical role in the way the brain, nervous system, and muscles function.*
  • Alpha-GPC supports brain function and mood, promotes improved reaction time, and helps support focus and the mind-muscle connection during workouts.*
  • Research suggests that, by increasing levels of the neurotransmitter acetylcholine, alpha-GPC also supports muscle strength, power, and endurance.*

600mg of N-Acetyl L-Cysteine (NAC)

  • NAC is the amino acid cysteine with an acetyl group attached to it. The acetyl group makes it more stable and allows the body to absorb and use it better than plain cysteine.*
  • NAC is a powerful fatigue fighter that promotes energy production during exercise.*
  • New research suggests that NAC works by preventing the disruption of the sodium-potassium pumps in muscle cells, delaying fatigue and maintaining muscle strength and endurance.*
  • Research from the University of Kentucky Medical Center reported that subjects were able to perform strength exercises for 30 percent longer when they supplemented with NAC before exercise.*

50mcg of Huperzine A

  • This extract from club moss is a potent brain booster that may promote mental focus and support mood.*
  • Huperzine A helps maintain optimal levels of acetylcholine, which is very helpful for brain and muscle function.*

300mg of Caffeine

  • Research confirms that caffeine can immediately increase muscle strength, improve muscle endurance, and decrease muscle fatigue during workouts, which allows you to take your training intensity to a higher level.*
  • Caffeine is also suggested to be a nitric oxide (NO) booster. One study in the American Journal of Cardiology reported that healthy young men taking 300 mg of caffeine experienced an increase in NO levels and an increase in blood flow to muscles.*

5mg of BioPerine®

  • BioPerine® is a patented extract of the fruit of black pepper, or long pepper, that contains standardized amounts of the active ingredient piperine.
  • Numerous clinical studies suggest that when a 5 mg dose of BioPerine® is taken with other supplements, it increases the absorption of those supplements by 30 to 2,000 percent.*

1.5g of L-Tyrosine

  • This amino acid supports alertness, mental focus, mood, and energy during intense exercise, especially when combined with caffeine.*

1g of Taurine

  • Taurine is a specialized amino acid that is important for endurance and muscle strength. It can also increase nitric oxide (NO) production.*
  • Exercise depletes taurine levels, thereby impairing strength and endurance, so it's helpful to get a dose of taurine before every workout.*

Ratings & Reviews

Overall Rating
9.1
4,132 Ratings
Verified Buyer Rating
9.1
3,680 Ratings
Average Flavor Rating
9.1
3 Flavors
Top Rated Flavor
8.5
Raspberry Lemonade
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10
Verified Buyer

This is the best preworkout I've ever taken. Hands. Down. I upped the intensity of my routine, and I felt like my old preworkout wasn't cutting it anymore. Pre JYM has helped me kick my *** to satisfaction. 5/7, the perfect score

9
Verified Buyer
  • 9 Orange Mango

Awesome pre-workout and love that it contains large amounts of effective ingredients (not just another caffeine laced pre). I've had some killer workouts on this stuff and alternate between this and Pulse by Legion as my go to pres.

10
Verified Buyer

I tried a number of pre-workout supplements and was not impressed until I tried C4. C4 had been my mainstay for quite some time. But then I read about Pre-JYM and thought I'd give it a try. I was concerned about the amount of caffeine in a serving as I normally work out in the evening. So I tried half a serving. I only work out twice a week, but my workouts can last 2-3 hours. Even with half a serving, I was able to power through my workouts like never before. Pre-JYM has now become my pre-workout mainstay!

10
Verified Buyer
  • 10 Cherry Limeade

Great product and cherry limeade is awesome flavor.

10
 
  • 8 Cherry Limeade

Loooooooooooooooooove this product!!! I've tried pre workout before but my heart felt like it was going to explode.... this one has been amazing! I worked out like a beast, sweat a lot!!! and was able to sleep at night. I took 1 spoon around 11 am, could feel it when it kicked in... amazing energy and focus, was able to finish all my shores, I usually hit the gym around 6.30 -7 pm, so around 4 pm didn't feel it that much, so decided to take 1/2 spoon before going to the gym and it was GREAT!!! Highly recommended product... I was a little concern about the labeling, but went online to check all the ingredients and there's nothing to worry about...

‡ This price is the retail price for JYM product found at GNC.com in the last 30 days. The price may not include shipping cost, tax, sale or promotional prices, or discounts such as member pricing. Prices may change and formulas may vary. Bodybuilding.com verifies this price every 30 days.
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30 Servings
30 Servings
$1.60 Per Serving
$47.97
$49.99
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What's in JYM Pre JYM


Directions For Pre JYM: Mix 1 scoop of Pre JYM in 14oz. of water and drink 30-45 minutes before workouts.

Warnings: Check with a qualified healthcare professional before taking this product. Do not use if you are sensitive to caffeine, pregnant or nursing a baby, under 18 years of age, have any known or suspected medical conditions, and/or if you are taking any prescription or OTC medications. Pre JYM is an incredibly strong pre-workout matrix that contains 300mg caffeine per serving, the equivalent of approximately 3 cups of coffee. Avoid using with any other caffeinated products. Too much caffeine may cause nervousness, irritability, sleeplessness, and, occasionally, rapid heartbeat. Always begin use with 1/2 scoop or less and assess your tolerance. Once tolerance is assessed, take a maximum dose of 1 scoop. To avoid sleeplessness, do not consume within 6 hours of bedtime. Concerning California Residents: This product contains chemicals known to the State of California to cause cancer and birth defects or reproductive harm. KEEP OUT OF REACH OF CHILDREN.

* 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.
Learn more about Beta-Alanine.