Post JYM Active Matrix
JYM Supplement Science

Post JYM Active Matrix

Powerful Cocktail Designed to Help Boost Repair, Maximize Recovery, and Build Muscle*
Post-Workout Powder for Recovery and Growth*
9.5 out of 10 (1,370 Reviews)
1 Size
30 Servings
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6 Flavors
Fruit Punch
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Price: $37.99 ($1.27 / Serving)
Flavor Rating: 9.0

Product Overview

JYM Post JYM Active. Active Ingredients Matrix. The Ultimate Post-Workout Formula! Recovery*. Growth*. Refuel*.

"JYM Supplement Science combines real science with real ingredients to deliver unreal results. Post JYM, my revolutionary post-workout recovery formula, delivers the ingredients you need after every workout to promote those unreal results.* It's a powerful post-workout cocktail scientifically-designed to help you boost repair, maximize recovery, and build more muscle.*

Many of the ingredients in Post JYM Active Ingredients Matrix mirror ingredients in my Pre JYM. These ingredients include BCAAs, creatine HCl, beta-alanine, betaine, and taurine. These five ingredients should be consumed before and after every workout to help boost maximal performance and muscle growth.* Thus, Pre JYM and Post JYM Active Ingredients Matrix are designed to work in concert. Take Pre JYM to train like an animal; use Post JYM Active to recover like a pro.*

Post JYM Active Ingredients Matrix also contains carnitine and glutamine, which are important to quickly ramp up post-workout repair.* In addition, you can also purchase Post JYM Dextrose separately. This way Post JYM lets you control your carbs and customize your post-workout protocol.

Like every JYM product, Post JYM Active Matrix contains no proprietary blends, proper amounts, no "abbreviated" formulas, no concentrates, and no BS. There is no filler. Every single ingredient is included at the studied amount to optimize repair and growth.* That's the power, and promise, of Post JYM Active Ingredients Matrix.

Prepare to experience the combined power of real science, real ingredients, and unreal results.*"

Hit the JYM!

Jim Stoppani, PhD
Owner, JYM Supplement Science

Post JYM Active Ingredients Matrix Features
  • Full doses of 8 science-backed ingredients
  • 6 grams of BCAAs in a 3:1:1 ratio that enhances muscle growth*
  • 3 grams of glutamine for better recovery and growth*
  • 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*
  • 2 grams of Carnipure® L-carnitine L-tartrate to aid recovery and help enhance the body’s use of testosterone.*
  • 1.5 grams of betaine for greater power and strength during workouts*
  • 5 milligrams of BioPerine® to enhance absorption of nutrients for even better results*

Under the Microscope

Let’s take a closer look at each of the eight ingredients and doses used to make Post JYM a revolutionary recovery formula.*

6 grams of Branched-Chain Amino Acids (BCAAs)
  • The BCAAs are three amino acids—leucine, isoleucine, and valine—that share a common structure.
  • Research suggests that leucine is the most critical after workouts because it stimulates muscle protein synthesis (i.e., muscle growth) by activating the mTOR complex.* It also supports the body’s natural insulin release, which drives more amino acids, creatine, and carnitine from Post JYM Active Ingredients Matrix into your muscle cells.*
  • Having a 3:1:1 ratio of leucine to isoleucine to valine in a post-workout product, such as in Pre JYM, provides an extra bit of leucine for to help boost muscle growth without compromising the critical role that isoleucine and valine play in this process.*
2 grams of Creatine HCL
  • Many studies suggest that creatine supplementation leads to significant gains in muscle strength and power, as well as muscle growth.*
  • Creatine HCl is made by attaching a hydrochloride (HCl) group to creatine.
  • Adding the hydrochloride group lowers the pH of creatine, making it more acidic. This drastically increases creatine's solubility in fluids, which may help increase absorption to help reduce stomach issues.*
  • • Clinical research suggests that one of the best times to get a serving of creatine is after workouts. This is especially true when consuming creatine along with ingredients that spike insulin levels, such as leucine and dextrose, which are included in the Post JYM Active Ingredients Matrix and Post JYM Dextrose, respectively.*
2 grams of CarnoSyn® Beta-Alanine
  • Beta-alanine is an amino acid that gets taken up by muscle fibers and combines with the amino acid histidine to form carnosine.*
  • Research suggests that carnosine increases strength and power, improves endurance and recovery, and muscle growth.* This is especially true when taken together with creatine, as in Post JYM.
  • One of the best times to get a dose of beta-alanine is right after workouts when muscle fibers are primed to utilize nutrients.* Taking beta-alanine along with leucine and dextrose, as in Post JYM Active Ingredients Matrix and Post JYM dextrose, may further enhance its uptake to keep your muscle carnosine levels maximized.*
2 grams of Carnipure L-Carnitine L-Tartrate
  • Studies suggest that L-carnitine L-tartrate supplementation enhances recovery after exercise with as little as 1 gram.* The better recovery is likely due to carnitine’s ability to promote nitric oxide (NO) production and therefore increase blood flow to recovering muscles, as well as its ability to help induce an increase in muscle oxygen consumption.*
  • Another benefit of L-carnitine L-tartrate is that it may help enhance the body's natural use of testosterone*
  • Since carnitine requires insulin for entry into muscle cells, it’s best to supplement carnitine with ingredients that spike insulin levels, such as leucine, which is in Post JYM Active Ingredient Matrix, and dextrose, which is in Post JYM Dextrose.*
3 grams of Glutamine
  • Glutamine is one of the most abundant amino acids in the body and is important for muscle recovery and growth.*
1.5 grams of Betaine
  • Betaine, also known as trimethylglycine (TMG), is a modified version of the amino acid glycine.
  • Betaine supplementation has been suggested in 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 increased power and muscle force on the bench press.*
  • Betaine has also been suggeested to help increase protein synthesis following workouts as compared to a placebo. This may help lead to greater muscle growth in the long term.*
1,000 mg of Taurine
  • Taurine is a specialized amino acid that is important for endurance and muscle strength.*
  • Exercise depletes taurine levels, thereby impairing strength and endurance, so it’s critical to get an effective amount of taurine after every workout to replenish what was lost.*
5 mg 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.
JYM Supplement Science

Ratings & Reviews

Overall Rating
1,370 Ratings
Verified Buyer Rating
1,250 Ratings
Average Flavor Rating
6 Flavors
Top Rated Flavor
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 Watermelon
Verified Buyer
  • 9 Watermelon

The taste is okay but it has helped me from feeling overly fatigued and tired after a tough workout! Sometimes after I take this product I can feel the ''tingling'' sensations at random parts of my body as if I took a preworkout; odd, but better than feeling drained after a workout. Physically after taking this product for a month, it has helped my muscles get a little more cut, not larger. No complaints either way.

Verified Buyer
  • 9 Watermelon

Great taste and good product overall. Would recommend!!

Verified Buyer
  • 7 Fruit Punch
  • 5 Lemonade
  • 8 Mandarin Orange
  • 6 Rainbow Sherbet
  • 8 Watermelon

It's Jym, I trust Jim. I buy Jym. I see results. That's all I ask. Who cares if it tastes amazing. Not me.

Verified Buyer
  • 8 Fruit Punch
  • 2 Lemonade
  • 5 Mandarin Orange
  • 1 Natural Lemon Lime
  • 1 Rainbow Sherbet
  • 10 Watermelon

Great post workout but it could really use some work on the flavoring and flavor choices. They need a grape or a blue razz.

Verified Buyer
  • 2 Watermelon

This "new" line of JYM products is disappointing. The watermelon flavour tastes nothing like the original. Mixes horribly and tastes like off cordial. Bring back the original please. Tried posting on stoppani's and also on to see what he has to say but no response. Have stopped buying ProJym and now it's time to put Post Jym to bed.

  • 10 Rainbow Sherbet

Tastes great!

  • 9 Rainbow Sherbet
  • 9 Fruit Punch

This the best product and the taste are the best i've been take jym product form 2 yrs now and i have try some others but nothing is as good as this

  • 9 Rainbow Sherbet
  • 9 Fruit Punch

This the best product and the taste are the best i've been take jym product form 2 yrs now and i have try some others but nothing is as good as this

  • 7 Mandarin Orange
  • 8 Rainbow Sherbet

Bought these products, both of the flavours. The Rainbow Sherbet is like having Skittles in your bottle of water. The Mandarin Orange is good but tastes like Crush Orange Sode minus the bubbly effect of a carbonated beverage.

  • 1 Fruit Punch
  • 2 Mandarin Orange
  • 7 Rainbow Sherbet
  • 1 Watermelon

Is the post jym active fruit punch/watermelon ORIGINAL coming back? please sell both new and original..all the new jym flavors are TERRIBLE

Verified Buyer
  • 10 Lemonade
  • 10 Watermelon

The newly released Watermelon flavor is just as good as I remember it being from the previous release. I highly recommend this flavor to anyone. I enjoy it with or without dextrose added, of course with dextrose added its sweeter but this product gets the job done. It's Dr. Stoppani what else do you need to say or know? Lemonade is another great flavor. Same comments as above and it gets the job done as advertised. Get you some!!!

Verified Buyer
  • 8 Mandarin Orange

The only thing I don't like about the new flavors is how they taste soooo good on the first sip, then awful on the rest

Verified Buyer
  • 1 Fruit Punch

Unlike some other post work out drinks I've had this is the only one that doesn't leave me feeling like I've been ran over by a stampede. So clearly it is helping with recovery. However, I'm a bit concerned as the BCAA that are in this, aren't hydrophobic as I would expect them to be. The fruit punch is an awful taste that I use 32oz of water with. Even with that much it tastes like a liquefied jolly rancher. I have to power through each time.

Verified Buyer
  • 8 Fruit Punch
  • 10 Lemonade
  • 9 Mandarin Orange
  • 10 Rainbow Sherbet

What's in JYM Supplement Science Post JYM Active Matrix

Serving Size: 1 Scoop (20g)
Servings Per Container: About30
Amount Per Serving % Daily Value
Calories 45       
Total Carbohydrate 1 g <1%**
L-Glutamine 3 g
Creatine Hydrochloride 2 g
Beta-Alanine (as CarnoSyn®) 2 g
L-Carnitine L-Tartrate (as Carnipure™) 2 g
Betaine (Trimethylglycine) 1.5 g
Taurine 1 g
L-Leucine 3.6 g
L-Isoleucine 1.2 g
L-Valine 1.2 g
Black Pepper (Piper nigrum) Fruit Extract (as BioPerine®) 5.3 mg
** Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value not established
Other Ingredients:
Natural And Artificial Flavors, Sucralose, Malic Acid, Citric Acid, Acesulfame Potassium, FD&C Red # 40.
ALLERGEN WARNING: Produced on shared equipment that also produces products that may contain EGG, MILK, SOY, TREE NUTS, AND WHEAT.

Directions For Post JYM Active Matrix: As a Dietary Supplement, mix 1 scoop of Post JYM Active Ingredients Matrix™ into 16-32 oz. water, preferably within 30 minutes after workouts. Consider allowing Post JYM Active Ingredients Matrix to mix for 10-15 minutes before drinking. Also consider drinking it over the course of 15-30 minutes. Add Post JYM Fast-Digesting Carb™ to the Post JYM Active Ingredients Matrix for best results.

Warnings: Check with a qualified healthcare professional before taking this or any other dietary supplement. Do not use if you are pregnant or nursing, under 18 years of age, have any known or suspected medical conditions, and/or if you are taking any prescription or OTC medications, as Post JYM Active Ingredients Matrix may enhance the absorption rate of some medications. KEEP OUT OF REACH OF CHILDREN.

Warning: Concerning California Residents: This product contains chemicals known to the State of California to cause cancer and birth defects or reproductive harm.

* 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.
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