Established in 2013, Jym Supplement Science is a brand which prides itself on creating unique and revolutionary products which feature high-quality, science-backed ingredients.
Dedicated to helping people improve their lives, Jym Supplement Science has already built an impressive line-up of supplements across all main categories. This includes pre-workouts, protein powders, and everything in between.
- Number of Staff – N/A
- Founded – 2013
- Founder – Jim Stoppani
- Head Office – N/A
- Website – https://jymsupplementscience.com/
Jym Popular Products
If you’re looking to take your fitness game to a whole new level, Jym Supplement Science has you covered. Its range of high-quality supplements is specifically designed to help you get great results. Here is an overview of the most popular supplements that the brand has to offer.

Pre Jym
Ingredients
Citrulline Malate, L-Leucine, Creatine Hydrochloride (as CON-CRET®), Beta-Alanine (as CarnoSyn®), Dextrose, L-Isoleucine, L-Valine, L-Tyrosine, Betaine (Trimethylglycine), Sodium (as Disodium Phosphate), Sweeteners (Sucralose, Acesulfame Potassium), Flavouring, Beet (Beta vulgaris) Root Extract, Choline Bitartrate, Caffeine Anhydrous, Alpha-Glyceryl Phosphoryl Choline (as AlphaSize®), N-Acetyl L-Cysteine, Stabilisers (Cellulose Gum, Xanthan Gum, Carrageenan), Colour (Allura Red AC, Brilliant Blue), Black Pepper (Piper nigrum) Fruit Extract (as BioPerine®).
Why Choose Pre Jym?
Featuring a total of 13 ergogenic ingredients, Pre Jym is the perfect choice for anyone looking to fuel their workouts and get better results in the gym.
Creatine, betaine, and beta-alanine will work in combination to increase your strength. Meanwhile, ingredients such as BCAAs, caffeine, and citrulline malate will boost your endurance.
5mg of BioPerine® increases absorption of the included ingredients. Plus, users can also enjoy enhanced mental focus and concentration thanks to the inclusion of tyrosine.
And with no proprietary blends, this particular supplement is clearly transparently-dosed. You can buy from the Jym Bodybuilding.com store, or from one of many resellers both online and in-store.
Mass Jym
Ingredients
Protein Blend (Whey Protein Isolate, Micellar Casein, Milk Protein Isolate, Egg White Protein), Pea Starch, Dextrose, Natural and Artificial Flavor, Polydextrose, Sunflower-Based Creamer (Sunflower Oil, Maltodextrin, Micellar Casein, Soy Lecithin, Sodium Citrate, Tricalcium Phosphate), isomaltulose, Conjugated Linoleic Acid (Conjugated Linoleic Acid Triglycerides, Corn Syrup Solids, Sodium Caseinate, Silicon Dioxide, Dipotassium Phosphate, Antioxidants), Coconut-Based Creamer (Coconut Oil, Maltodextrin, Food Starch, Mono- and Diglycerides, Tricalcium Phosphate), Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Salt, Oat Bran, Ground Vanilla Bean, Sunflower Lecithin, Sucralose, Acesulfame Potassium, Silicon Dioxide.
Why Choose Mass Jym?
A premium lean mass builder, Mass Gym is designed for those looking for an efficient way to build muscle. Other benefits include increased endurance, strength, and more optimal recovery times.
Mass Jym includes 30g of high-quality protein sourced from whey, casein, and egg. Its formula is designed to help you build muscle and keep body fat to a minimum.
There are 300 calories in each serving, with delicious flavors including Chocolate Mousse, Apple Fritter, and Tahitian Vanilla to choose from. You can buy from the Bodybuilding.com Jym store, or from a selection of authorised in-store or online nutrition outlets.
Shred Jym
Ingredients
Acetyl-L-Carnitine HCl 1.5 g, L-Tyrosine 500 mg, Green tea leaf extract (98% polyphenols, 75% catechins,& 45% EGCG) 500 mg, Caffeine Anhydrous 200 mg, Cayenne pepper fruit extract (Capsimax)
Why Choose Shred Jym?
A powerful thermogenic fat oxidiser, Shred from Jym Supplement Science is an effective supplement for those looking to boost their metabolism and reduce body fat.
Shred Jym provides users with the mental edge they need to stay on track with their diet. Plus, it’s formula ensures that you can achieve far more efficient fat loss than before.
And with a total of six science-backed ingredients, it’s possible to considerably boost your fat loss game with Shred Jym. Although, regular exercise and a healthy, well-balanced diet are recommended to achieve the best results. Shred Jym is available to buy from an authorised reseller or via the brand’s Bodybuilding.com store.
Pro Jym
Ingredients
Protein Blend (Whey Protein Isolate, Micellar Casein, Milk Protein Isolate, Egg Protein), Coconut-Based Creamer (Coconut Oil, Maltodextrin, Food Starch, Mono- and Diglycerides, Tricalcium Phosphate), Cocoa Processed With Alkali, Cookie Pieces (Sugar, Tapioca Starch, Rice Flour, Cocoa Processed With Alkali, Palm Oil, Corn Starch, Natural Flavors, Salt, Sodium Bicarbonate, Soy Lecithin), Natural & Artificial Flavor, Salt, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Sunflower Lecithin, Sucralose, Acesulfame Potassium, Silicon Dioxide.
Why Choose Pro Jym?
Featuring a blend of micellar, whey, and egg white protein, Pro Jym is an ideal option for those looking for the perfect mix between slow and fast-digesting proteins.
Designed for consumption at any time of the day, Pro Jym comes in a choice of 7 delicious flavors which includes Mint Chocolate Chip, Caramel Macchiato, Red Velvet Cake, among others.
Available in either a 907 g or 1,814 g container, Pro Jym features 24 g of protein per serving. Its low sugar and fat content ensure it is ideal for those on a fat loss diet, but looking for a convenient way to meet their daily protein intake goals.
Jym Sponsored Athletes
At the time of writing, Jym Supplement Science isn’t affiliated with any athletes other than its founder – Jim Stoppani. Below is an overview of his fitness journey so far.
Jim Stoppani
- Born: 13 January 1968
- Home Country: United States
- Profession: Kinesiologist, author, bodybuilder, health, fitness & nutrition expert and consultant
Laying the foundations for his fitness journey from the age of 11, Jim Stoppani has always been an incredibly athletic individual. He took inspiration from his father who had built a complete home gym. This meant that Jim soon became fascinated with all things to do with fitness.
Just a few years later, Jim had become so interested in fitness, that he decided to pursue a career in the industry. To do just that, he set about increasing his knowledge of the human body, nutrition, and exercise. By 1990, he graduated with a doctorate in exercise physiology with a minor in biochemistry from the University of Connecticut.
After making a name for himself in the fitness industry, Jim went on to become the trainer for several celebrities including Dwayne Johnson (The Rock), Dr. Dre, and Mario Lopez. In more recent years, he established his own supplements brand – Jym Supplement Science, which continues to go from strength to strength.