Real Science
For Real Results


From the labs of Yale University to the most hardcore gyms in America, Jim Stoppani has devoted his entire career to the science of muscle building. Using the real science behind training, nutrition, and supplementation, he'll get you real results in just 12 weeks.


Whey is the king of muscle-building proteins. It's a fast-digesting milk protein that can help you build muscle and increase strength. Whey protein enhances recovery, boosts performance, and supports fat loss by helping you feel fuller, longer.

One of the major benefits of whey protein is its fast rate of digestion. It gets to your muscles faster than any other protein you can ingest. Whey is also loaded with essential branched chain amino acids (BCAAs), including leucine, considered one of the most critical muscle-making amino acids.

Pro JYM Protein Powder
Pro JYM Protein Powder, 4 Lbs.
JYM Supplement Science
9.2 2,821  Reviews
Pro Jym Protein packs Dr. Jim Stoppani's premeir protein formula of 4 must have proteins: whey protein isolate, micellar casein, milk protein isolate, and egg white protein for a full stack of amino acids and muscle building greatness.*


A good pre-workout supplement will cover your bases with a quality nitric oxide (NO) booster like citrulline malate, at least 5 grams of branched-chain amino acids(BCAAs), 1.5 grams of creatine hydrochloride or 5 grams of other forms of creatine (i.e., creatine monohydrate), at least 1.5 grams of beta-alanine, and about 1.5 grams of betaine. You'll also want a safe stimulant like caffeine. These essential ingredients will work together to amp up your focus and training intensity, boost muscle strength and endurance, enhance muscle pumps, and promote muscle growth.


A solid post-workout product delivers at least 5 grams of BCAAs, at least 1.5 grams of creatine hydrochloride (or 5 grams of creatine monohydrate), at least 1.5 grams of beta-alanine, at least 1-2 grams of carnitine, 3-5 grams of glutamine, and about 1.5 grams of betaine. It should also provide about 20-60 grams of fast-digesting carbohydrates to help replenish muscle glycogen and shuttle nutrients to your muscles. Ideally, the carbs should be separate from the other ingredients so that you can adjust your carb intake as needed for your body size and goals.

Pre JYM Pre Workout Powder
Pre JYM Pre Workout Powder, 20 Servings
JYM Supplement Science
9.1 4,144  Reviews
The non-proprietary legends at Jym have engineered the Pre Jym powerhouse pre-workout to promote muscle growth, increased energy levels, and strength so you can push through longer, more intense workouts in the gym.*
Post JYM Stack
Post JYM Stack
JYM Supplement Science
10 19  Reviews
An Advanced Stack From JYM For Enhanced Muscle Recovery After The Most Intense Workouts!


There are several effective ingredients that—when properly dosed—can make a difference in your fight against body fat. Acetyl L-Carnitine aids fat loss by transporting fatty acids into the power centers of cells, called. Mitochondria work to generate energy by burning up nutrients such as fat for fuel. Green tea and caffeine facilitate fat loss by boosting daily calorie burn. Caffeine also attaches to receptors on fat cells to blunt fat storage and increase fatty acid release.

Shred JYM Weight Loss Pills
Shred JYM Weight Loss Pills, 240 Vegetarian Capsules
JYM Supplement Science
8.5 703  Reviews
Shred Jym works in 3 stages: to release fat from fat deposits, get the fat to the right place, the mitochondria cell, and then to burn the fat to deliver energy and support ATP levels in the body so you feel great with no gimmicks, just results.*


Natural testosterone boosters use herbs and botanicals to promote optimal testosterone levels, thereby supporting performance, strength, workout recovery, and muscle growth. As men age, their natural testosterone production begins to decline, which can lead to loss of muscle mass, decreased energy, endurance, and more. That's why natural testosterone boosters are best used by individuals over 25 to help support lean muscle and promote workout recovery.*

Alpha JYM Test Booster
Alpha JYM Test Booster, 180 Vegetarian Capsules
JYM Supplement Science
8.4 365  Reviews
Alpha Jym delivers greatness with natural and herbal ingredients to help boost testosterone, support hormone balance, and assist with male performance over time as hormone levels begin to reach optimal concentrations to feel like your alpha self again.*


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