JYM Supplement Science


Pre-Workout Powder Powerhouse*
Scientifically Advanced All-In-One Formula for Improved Workouts*
9.1 out of 10  (4,201 Reviews)
1 Size
30 Servings
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3 Flavors
Cherry Limeade
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Price: £44.24 (£1.47 / Serving)
Flavor Rating: 8.5

Product Overview

Exclusive Products
Jym Pre-Powerhouse Product


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 proprietary blends serve a different purpose. They hide how little of each ingredient is actually put into a product. This results in a cheap, underdosed, ineffective supplement.

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 most of them don't provide anywhere close to 6 grams. Until now.

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

No Concentrates

Some 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 most 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 ingredients at proper, powerful doses.

Pre JYM Features
  • 6 grams of citrulline malate
  • 6 grams of BCAAs in a 2:1:1 ratio
  • 2 grams of creatine HCl
  • 2 grams of CarnoSyn Beta-Alanine
  • 1.5 of Betaine
  • 1.5 grams of Tyrosine
  • 1 gram of Taurine
  • 600 Milligrams of N-acetyl L-Cysteine
  • 500 Milligrams of betavulgaris L. (beet) extract
  • 350 Milligrams of choline bitartrate
  • 300 Milligrams of caffeine
  • 300 milligrams of Alpha-Glyceryl Phosphoryl Choline (50%)
  • 5 Milligrams of BioPerine

Ratings & Reviews

Overall Rating
4,201 Ratings
Verified Buyer Rating
3,712 Ratings
Average Flavor Rating
3 Flavors
Top Rated Flavor
Raspberry Lemonade
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Verified Buyer
  • 10 Raspberry Lemonade

I have tried a lot of JYM pre I like the taste of raspberry lemonade gives me the boost I need to get through his intense workouts which I do 6 says a week

  • 9 Raspberry Lemonade

The flavor was really good felt like i was drinking pure lemonade. Full disclosure: I used this pre-workout before playing an intense basketball game, not a weight lifting session. So the flavor is a 9, because I still feel like there is something better out there, but trust me buy this raspberry lemonade. Performance? I had energy non stop throughout the game and felt like I could play longer. I was sweating a decent amount not sure if it was this or just the intense play. Either way very good product

  • 5 Cherry Limeade

I only take Pre-Jym on days that I'm really tired and just regular coffee won't do it for me. It works well, and I don't feel like my heart is going to explode, however the Cherry Limeade flavor is probably the worst of the three flavors. Major regrets on not getting Mango instead.

Verified Buyer
  • 9 Raspberry Lemonade

Excellent product, Jym Supplements not only give you results but Jim Stoppani explains everything that you need to know.


great pre workout. Has helped me in the gym and pushes me every time I take it. Great product!

30 Servings
30 Servings
£1.47 Per Serving

What's in JYM Supplement Science Pre JYM

30 Servings Cherry Limeade
Serving Size: 1 Scoop (26.5g)
Servings Per Container30
Per Portion % Reference Intake
Energy (KJ) 63 kJ 1%*
Energy (kcal) 15 kcal       
Carbohydrate 4 g 2%*
Of Which Sugars 2 g **
Sodium (As Sodium Chloride) 220 mg 4%*
Citrulline Malate 6 g **
L-Leucine 3 g **
L-Isoleucine 1.5 g **
L-Valine 1.5 g **
Creatine Hydrochloride 2 g **
CarnoSyn® Beta-Alanine 2 g **
Betaine (Trimethylglycine) 1.5 g **
L-Tyrosine 1.5 g **
Taurine 1 g **
N-Acetyl L-Cysteine 600 mg **
Beta vulgaris L. (beet extract) 500 mg **
Choline Bitartrate 350 mg **
Caffeine Anhydrous 300 mg **
Alpha-Glyceryl Phosphoryl Choline 50% 300 mg **
BioPerine® 5 mg **
* Reference Intake of an average adult (8400kJ/2000 kcal).
** Reference Intakes not established.
Other Ingredients:
Citrulline Malate, L-Leucine, Dextrose, Creatine Hydrochloride, CarnoSyn® Beta-Alanine, Flavouring, Betaine (Trimethylglycine), L-Tyrosine, L-Isoleucine, L-Valine, Taurine, N-Acetyl L-Cysteine, Beta vulgaris L. (beet extract), Sweeteners (Acesulfame Potassium, Sucralose), Anti-Caking Agent (Calcium Silicate), Choline Bitartrate, Caffeine Anhydrous, Sodium (As Sodium Chloride), Alpha-Glyceryl Phosphoryl Choline (Soya), Colour (Allura Red AC), BioPerine®
ALLERGEN WARNING: Contains SOYA and is produced in a facility that also processes PEANUTS, EGGS, WHEAT and MILK.
Food Supplement.

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

Warnings: Do not exceed the recommended daily dose. This product should not be used as a substitute for a varied diet or a healthy lifestyle. Consult a physician prior to using this or any supplement or if you have any medical condition. KEEP OUT OF REACH OF CHILDREN, NOT FOR USE BY INDIVIDUALS UNDER THE AGE OF 18. Avoid using with any other caffeinated products. High Caffeine Content (300 mg per serving). Not Recommended for children or pregnant or breastfeeding women. 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. Store in a cool, dry place. Best before end and lot number: Please see lid.

For Cherry Limeade flavour, Allura Red (E 129) may have an adverse effect on activity and attention in children.

For Orange Mango flavour, Tartrazine (E 102) may have an adverse effect on activity and attention in children.

CarnoSyn® is patented for use in boosting muscle carnosine levels. Patent(s) # 5,965,596, 6,172,098, 6,426,361, 6,680,294, 7,504,376, 7,825,084, and 8,129,422.

AlphaSize® is a registered trademark of Chemi Nutra and is protected under U.S. Patent No. 5,315,023 and 5,433,833.

BioPerine® is a patented ingredient and registered trademark of Sabinsa Corporation. Patent numbers 5,536,506, 5,744,161, 5,972,382, 6,054,585, EP0810868, JP3953513 and CA2247467.

Manufactured in the USA by

Imported by (UK) Ltd Units 7 and 8 Foster Avenue Woodside Park, Dunstable Bedfordshire UK Phone 0-808-189-1030

* 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.