Professional Strength Endurance & Hydration Mix

The new EFS-PRO drink mix contains a special carbohydrate source that has a significantly lower osmolality than any other carbohydrate available.

Professional Strength Endurance & Hydration Drink
Maximizes Performance & Delays Fatigue
Delivers 1400mg of Electrolytes to Prevent Cramping

As low as $49.95

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Detailed Information

The new EFS-PRO drink mix is an ultra low osmolality, state-of-the-art endurance and hydration formulation that’s engineered with the latest innovations and technology to meet the unparalleled requirements of professional athletes. EFS-PRO delivers higher levels of calories, electrolytes and other essential nutrients than other drinks without causing GI distress, even in the most extreme conditions. Plus, it’s designed to taste like flavored water so multiple bottles can be consumed easily without the dreaded ‘sweetness fatique.’ EFS-PRO features a proprietary blend of carbohydrates that has unique benefits for endurance. The primary carbohydrate is a low osmolality amylopectin multi-branched cyclic dextrin that’s 100% soluble in water. This means EFS-PRO can be mixed at stronger concentrations than other drinks and still be absorbed quickly and easily.

EFS-PRO is designed to be mixed at varying strengths to suit your requirements. Each scoop is 40 calories. It can be used as a hydration drink at 80 calories in 12oz of water or a high-calorie formula at 120 or 160 calories in 12 ounces of water.

"The electrolyte content of EFS-PRO is industry-leading, with an emphasis on replenishing nearly all of the sodium lost through sweat."


"The most effective and noticeable trait of EFS Pro is the lack of sweetness and the mild, palatable flavors."

"THE ELECTROLYTE KING. The latest mix from First Endurance, EFS-PRO, has up to 1,800 grams of electrolytes per bottle from five different sources, which adds up to 10 times what some other leading mixes provide. EFS-PRO can be mixed differently according to your needs, from 80 calories and 933mg electrolytes to 160 calories and 1,866mg of electrolytes.

Even at its most potent, EFS-PRO has never given us a hint of gut rot. Best, EFS-PRO has not been designed to taste like fruit punch or lemonade, it drinks like flavored water, with only a hint of lemon and almost no sweetness, just right for a long hot day in the saddle."



  1. Game Changer Review by Ben

    After an early season bonk using a different electrolyte drink I made the switch to EFS-PRO. It has been a total game changer in the way I train and race. I have energy at the end of long rides and runs even in extreme heat. EFS-PRO helps give me the ability to finish stronger than I started in races and training. Also my stomach never even so much as rumbles while racing using EFS-PRO. I would highly recommend this product to any athlete struggling with energy and bonking in long distance triathlons. (Posted on 10/11/2017)

  2. Fantastic Review by Will

    Absolutely love EFS Pro, super friendly on my stomach and I am able to get through my entire ride without cramping. Also it seems very easy to get tired of other drinks during long workouts but with EFS Pro it still goes down easily towards the end of a long day. The smaller scoop (than regular EFS) makes it really easy to adjust the concentration when mixing. Works great at high concentration for intense days, and lower concentration for more endurance based workouts. (Posted on 9/26/2017)

  3. Best hydration/cal product out there! Review by Rachel

    I really liked the regular EFS, but found myself diluting it for a lighter flavor. Fast forward a few years and EFS-Pro arrives. I love the light flavor and the added carbohydrate sources. Never a GI issue. (Posted on 9/18/2017)

  4. A season of good results and no issues Review by David

    I started using EFS Pro at the beginning of the 2016 season, and I have been blown away. Its by far the most thoughtfully formulated and performance benefiting product on the market. I raced in some 9hr 95+ degree F days and it supported me through those efforts. I think the ability to taylor the strength to the day is another great aspect. Anyone who wants an advantage in nutrition needs to check out the First Endurance line (Posted on 3/5/2017)

  5. Super Review by Adam

    great product low sugar which is great (Posted on 10/9/2016)

  6. Ultra Tested Review by Joe

    Taste is subtle and does not make you sick of it on long runs or rides. I've used this as my base fuel for century rides and a 100 trail run. Easy on the stomach. Stands alone on shorter efforts but of course you need food too on longer ones. Love the fact that you get everything in one mix, and not sweet. (Posted on 5/25/2016)

  7. EFS Pro Review by James

    Love the mild flavor of EFS Pro Cucumber. Easy to use for extended periods and the electrolyte balance with some calories really works well for long stuff. Will definitely use it for my first IM at Choo. (Posted on 5/17/2016)

  8. EFS Pro Review by James

    Love the mild flavor of EFS Pro Cucumber. Easy to use for extended periods and the electrolyte balance with some calories really works well for long stuff. Will definitely use it for my first IM at Choo. (Posted on 5/17/2016)

  9. Ironman Boulder success with EFS Pro Review by Jennifer

    I have been using EFS pro for about 9 months now, ever since the Cucumber water flavor was available.
    Hitting my nutrition/hydration for Ironman has been a real case study. I first used EFS Pro and EFS liquid shot at Kona 2014. The windy bike prevented me from hitting my hydration and my run suffered. I continued to tweak my plan and tried again at IMTexas in May 2015. Not quite there. Finally IMBoulder Aug 2015 was a total success from a nutrition/hydration and racing plan. Was 1st in AG and get to race in Kona again this year. I will definitely have EFS pro in my bike bottles. Wish I liked running with a bottle. I may just have to so that I can continue to have EFS Pro on the run!! Thanks First Endurance for such a great product!! (Posted on 8/14/2015)

  10. Great product evolution Review by Carl

    I love the new EFS Pro and have found it to be particularly good on hot days. The light flavor and electrolyte balance make it easy to drink and I've noticed that I feel better at the end of races than in the past. (Posted on 7/17/2015)

  11. Great Product Review by Bryce

    I am a 62 year old male cyclist. On rides over 60 miles cramping has always been an issue for me when riding hard. I have tried various products trying to overcome the issue. Recently doing back to back 100+ mi rides using EFS-Pro had 21-22 mph average and NO CRAMPING. I only used EFS-Pro and nothing else to eat. Needless to say I am very happy with the results. (Posted on 7/15/2015)

  12. Ahhhhmazing Review by Steve

    I was a little hesitant with the cucumber flavor initially. I had never had a cucumber flavor before. But right from the start it was a decent taste that I became to really like and it just seemed to absorb so easily. I love this stuff. (Posted on 6/29/2015)

  13. Incredible Review by Doug

    I was training for my second Ironman (Ironman Texas) and dreading the on-course nutrition choice. As a long-term First Endurance customer I jumped at the chance to try EFS-PRO. As a heavy "sweater" I was also worried about the Texas heat and getting in enough fluid and electrolytes. Well, from the first few training sessions the product surpassed my expectations. I mixed a concentrated bottle and marked the sides so all I had to do was squirt a bit into water I picked up at the aid stations. I also put a bottle with powder in it in my special needs bag and did the same. It worked like a charm. Let me tell you, this was a LONG 112 miles and I NEVER got that gummy taste or worn out stomach that's so common with other products. As well, the leg cramps I often get in heat were non-existent in 88 degree Texas sun. I just can't say enough good things. (Posted on 5/26/2015)

  14. EFS Review by Gerry

    The BEST nutrient replacement system I have ever used! (Posted on 5/25/2015)

  15. Love the EFS Pro and FE! Review by ily

    I just completed my first Ironman (TX, 5/16/15) and nutrition was a primary concern. I trained and raced exclusively with EFS Pro on the bike and Liquid Shot on the run. The EFS Pro was fantastic! I had NO cramping or hydration issues and felt strong throughout despite brutal heat and humidity. The Lemon Water flavor is light and easy to drink. Also, it's made to mix at higher concentrations as needed for your personal caloric needs. Plus, the staff at First Endurance is top notch and will answer any questions you may have about the science behind their products and how best to use them. Thank you, FE, for helping to make my first Ironman a huge success! (Posted on 5/19/2015)

  16. Just a great product! Review by Jeff

    Not much to say that others have not. Probably now my most preferred product as the flavor is so so minimal that it goes down SO EASY!

    Another great product from 1st Endurance! (Posted on 5/18/2015)

  17. EFS Pro Review by Lauren

    I have been using EFS-Pro for a little while now as I was one that got to test it. I have found the non sugary taste settles better in my stomach and does not cause any stomach distress. EFS PRO also helps my brain stay fueled and helps me maintain focus over the 4+ hours I am racing. And lastly, EFS PRO replenishes my electrolytes and prevents me from cramping when I am racing at my limit. (Posted on 4/9/2015)

  18. Stomach issues solved Review by Rob

    I first tried the new Cucumber EFS-PRO at a training camp in Moab this fall. First Endurance was one of the sponsors. I've always had cramping issues - so much so that I've basically resorted to drinking a very diluted mix or even just water. We rode long and hard in Moab, so I needed more fuel. Mike, with FE, pushed me to experiment with the product by not diluting the mix at all. I used 3 scoops in every water bottle I drank during the training rides just to see what would happen. From the first sip I knew it going to be different. Not sweet. No rot gut. No cramping. Blown away. (Posted on 1/7/2015)

  19. Finally- No GI issues, no cramping! Review by Doug

    EFS Cucumber is a great exercise supplement. I have a sweet tooth and love the lemon lime EFS however the cucumber taste awesome too. It is not as sweet, taste is great and doesn’t leave the feeling in your mouth that you need to chase it down with water. The first time I used the drink was in Utah in June, hot and dry. This is important because I live in Seattle, opposite of hot and dry. I rode 7000 feet on two bottle of EFS cucumber and one EFS liquid shot, no stomach cramping, no leg cramping, just a lot of thin air and difficult breathing. The guys at First Endurance know what they are doing! (Posted on 1/6/2015)

  20. Best version yet? Review by Jason

    Absolutely! By far the best version of EFS to date. The light flavor is very easy to drink and have yet to have any gastric issues, even at high concentrations. I was a little skeptical about cucumber flavor but was sold after the first ride with it. I hope this is the trend and we see more lighter flavors in the near future. (Posted on 1/5/2015)

  21. Improvement over an already solid product Review by Gilbert

    I've used EFS drink mix for a few years with no issues. I loved the grape flavor and thought how much better is the EFS Pro drink mix? The flavor took me 1 or 2 rides to adjust, but now prefer it. I've also noticed it mixes fully into the water. The regular EFS Drink Mix sometimes wouldn't fully mix and collect at the bottom of my bottle. Its easily fixed by shaking up the bottle before each drink. (Posted on 11/23/2014)

  22. No cramping, no GI issues Review by Peyton Hoyal

    I had no GI issues after running - like I often do after a long,intense race. No cramping or negative split despite 1200ft of climbing on course. EFSPRO is a great product. (Posted on 10/28/2014)

  23. The Holy Grail of endurance electrolyte drinks Review by Angela Naeth

    This is absolutely the best tasting and best performing drink I have ever had. It’s the holy grail of endurance electrolyte drinks. (Posted on 10/27/2014)

  24. No stomach ache Review by Scott Jaime

    I used 3 scoops of EFS-PRO for each 20 oz. bottle and would rotate between plain water just to make sure I had the right concentration in my stomach. Each EFS-PRO bottle would last me about 2 hours. I found myself wanting to drink more. Very subtle favor with a smooth texture.

    Per the instructions, on hot days in the San Juan's, I would slam a bottle in a matter of a minute and then start running again. No sloshing! No stomach ache! And most importantly, I felt overall positive energy (Posted on 10/24/2014)

  25. Home Run Review by Kyle

    I have had problems stomaching nutrition on high intensity races. Tried the EFS-Pro for an Olympic tri and wow that stuff is awesome. No stomach issues, no burping, and not too sweet. You hit a home run with this one. (Posted on 10/12/2014)

  26. A competitive advantage Review by Ryan

    EFS-Pro allows me to maintain peak performance throughout four quarters of collegiate lacrosse without worrying about cramping or dehydration. (Posted on 10/10/2014)

  27. Game on! Review by T-Bird

    The cats at First Endurance have hit yet another home-run with the new EFS PRO line. It's much lighter on sweetness so I can drink it all day without getting the dreaded "sugar-gut", but still retains all the necessary calories, electrolytes and amino's to fuel me in my adventures. I'm crazy about their new Cucumber flavor, too. It's crisp and refreshing making it ideal for hot conditions. (Posted on 10/6/2014)

  28. Finally! Review by Jared

    I was one of the 'guinea pigs' with the small run of EFS-PRO earlier this summer. First thing I noticed was the taste was really mild and not overpowering at all, which I loved. The biggest benefit was how much better I felt riding in the heat. I always had issues with dehydration and GI distress and used EFS Pro on days that were 100 degrees plus and never cramped and didn't had any stomach issues. Glad I can get more now. This stuff rocks!! (Posted on 10/3/2014)

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Q: What is EFS-PRO?
A: EFS-PRO is a new energy drink that provides endurance athletes with the nutrients they need to fuel working muscles and increase endurance during exercise. The EFS formula utilizes the latest clinical research on endurance nutrition and input from some of the best endurance athletes in the world.

Q: Why doesn't EFS-PRO contain Vitamin C?
A: EFS-PRO doesn't contain Vitamin C because the latest research shows that Vitamin C can have a negative effect on endurance and performance when consumed during exercise. Click here for more info.

Q: What electrolyte can we find in the new EFS-PRO?
A: There is 500mg of sodium per serving in the new EFS-PRO drink (EFS has 300mg). This represents the highest sodium content in any electrolyte drink on the market. The EFS-PRO formula now offers over 1,500mg of electrolytes coming from all 5 electrolytes, per serving.

Furthermore these superior minerals also offer a buffering of stomach acids. DiCalcium and DiMagnesium malate lower stomach acids significantly helping to reduce the unwanted gastric distress that can be associated with other minerals.

Q: Are there any changes to the amino acids?
A: The amino acids in the EFS-PRO drinks are AjiPure amino acids, the purest, most- bioavailable source of free-form amino acids available. AjiPure amino acids have purity levels of 99%-100%. This results in faster and more complete absorption.

Q: What is L-Alanyl L-Glutamine?
A: The EFS-PRO is also fortified with L-Alanyl L-Glutamine which is a highly soluble water stable source of glutamine with some very unique features. This amino acid has been clinically proven to significantly improve the absorption of water and electrolytes in the intestinal tract.

Q: What is malic acid used for in the EFS-PRO drinks? Why is this important?
A: The new EFS-PRO drink contains 700mg of malic acid. Malic acid stimulates oxygen consumption by increasing mitochondrial uptake, improving mitochondrial respiration and increasing energy production. Malic acid is essential in the formation of ATP, the body's energy source. Malic acid allows the body to make ATP more efficiently, even under low oxygen, or hypoxic conditions.

During anaerobic conditions, malic acid has an ability to remove the accumulation of reducing equivalents. Human studies have shown that after endurance training, athletes’ muscles were characterized by a 50% increase in the malate-aspartate redox shuttle enzymes.

Q: How is the flavor?
A: The new EFS-PRO formula went through extensive flavor testing in the most demanding races in the world. We used this extensive feedback to create a flavor profile that mimics flavored water. With practically no sweetness this formula is ideal for those long, hot workouts where sweet drinks simply do not cut it. All formula uses 100% natural flavors and contains NO color. This allows athletes to use EFS not having to worry about staining water bottles.

Q: I’ve heard that there are benefits to having protein during exercise. Why doesn’t EFS contain protein?
A: EFS contains 2g free form amino acids per serving which is the equivalent in BCAA and glutamine profile to 9g whey protein. Protein naturally contains BCAAs and glutamine. Clinical evidence supporting the use of BCAAs and glutamine during exercise dates back to 1991. These clinical studies clearly indicate supplementing with as little as 1g free form amino acids improved performance, reduced post-exercise muscle damage, improved muscle glycogen resynthesis, reduced central fatigue and improved rate of perceived exertion. These are the same claims made by the most recent protein study and clearly support a mechanism for improved performance.

The First Endurance Research Board sides with the abundance of clinical studies supporting improved endurance performance while supplementing with amino acids during exercise. In addition to the clinical support, other factors lead to a decision to use these free form amino acids over complete proteins.

  • Proteins are more difficult to digest than amino acids during exercise

  • Proteins don’t taste very good during exercise

  • Proteins can reduce the glycemic index of a drink, further reducing its ability to be quickly absorbed

  • There is considerably more evidence supporting free form amino acids than complete proteins

Q: What are the benefits of using EFS-PRO during exercise?

A: The benefits of EFS are:

  • Supplying fast and sustained energy for muscles

  • Improved fluid absorption

  • Reduced cramping and dehydration

  • Improved performance

  • Easy to digest and absorb

  • Improved glycogen resynthesis

  • Delayed central (mental) fatigue

  • Replenishment of electrolyte loss

Q: How does it taste?
A: EFS-PRO literally tastes like cucumber water.

Q: How much EFS should I use during my training and racing?
A: Clinical research shows that a 6-8% solution delivering between 45-60g carbohydrates, >1000mg amino acids, 400-600mg sodium and equivalent balance in all electrolytes should be taken every hour during exercise. EFS is designed to maximize all these levels. Athletes should consume one serving for every 30 minutes of intense exercise. Adjustments should be made based on body weight, training state, individual sweat rates and preference. Use one serving for every 30 minutes as a starting point and adjust as necessary from there.

Q: What types of athletes should be taking EFS-PRO?
A: Long and short distance athletes can use EFS-PRO effectively.

1) Athletes which experience cramping from strenuous exercise.

2) All athletes who demand rapid fluid absorption in order to stay hydrated.

3) Athletes who want all the benefits of protein without the heavy/chalky consistency of protein drinks. Essentially any athlete exercising for one hour or more will benefit from the use of EFS in their training and racing.

Q: Should I use EFS-PRO even when it’s cold, like during XC ski races?
A: Cold weather sports still put a considerable fluid and electrolyte demand on the athlete. EFS works just as well in the cold as is the heat. Through experience we have found the EFS Liquid shot to be preferred during cold weather training.

Q: Should I use EFS-PRO in short races?
A: Short races generally don’t put a heavy demand on your glycogen carbohydrate stores, given that you are well nourished prior to the start of the race. During a short race athletes can be slowed significantly from cramping and electrolyte imbalance. A serving of EFS can be used 15-30 minutes prior to a short race (<1 hour) to assure adequate carbohydrates and electrolytes are available for the intense effort. Short race is defined as one lasting less than one hour.

Q: Should I use EFS-PRO in long races?
A: During long races (3+ hours) considerable stress is put on an athlete’s body: 1) glycogen (energy) stores are depleted; 2) electrolytes are depleted; and 3) amino acids are depleted.

1) EFS-PRO replenishes glycogen by using a mix of high glycemic carbohydrates including both simple and complex sugars. This easy to digest mix is rapidly absorbed and delivers fast and long term energy. EFS-PRO contains a powerful absorption technology blend of cluster dextrins and L-Alanyl L-Glutamine that further drives fluid and electrolytes from the gut to the working muscles.

2) EFS-PRO provides the most potent electrolyte profile available. The combination of all five electrolytes delivers a potent 1500mg per serving, helping to prevent cramping. The 500mg sodium per serving also aids in maximum fluid absorption so you stay hydrated throughout your training and racing. Supplementing with additional salt tabs, electrolyte tabs, or salty snacks is no longer needed when using EFS-PRO.

4) 2000mg of Amino Acids offers the same BCAA and glutamine levels as 9g whey protein. These amino acids have clinically shown to improve performance, reduce post-exercise muscle damage, improve muscle glycogen resynthesis, reduce central fatigue and improve rate of perceived exertion.

Q: How many servings are in a container of EFS-PRO?

A: There are 25 servings per container of EFS.

C of A

Click here for Certificate of Analysis archive.



EFS-PRO utilizes a proprietary ‘Optimal Absorption Technology’ to shuttle water, electrolytes and other essential nutrients through the digestive system more efficiently than ever before so you don’t have to worry about all the negative symptoms of GI distress. This is of the utmost importance because when endurance athletes need the benefits of their drink mix the most (when at or above lactic threshold) is when the conditions are the worst for essential gastric emptying.

  • L-Alanyl L-Glutamine: EFS-PRO contains L-Alanyl L-Glutamine because it’s clinically proven to significantly improve absorption of water and electrolytes in humans under exercise stress and mild dehydration and improve endurance performance. This special dipeptide amino acid is a highly-soluble, water-stable source of glutamine that has a number of unique benefits for endurance athletes. Like L-Glutamine, this dipeptide plays a role in the supply of energy, promotes protein synthesis, heals wounds, promotes a healthy intestinal tract and also stimulates immune function. The alanine component of L-Alanyl L-Glutamine helps stimulate gluconeogenesis (the generation of glucose through non-carbohydrate sources). Clinical studies on L-Alanyl L-Glutamine have shown it improves plasma glutamine by 26% over a basic L-Glutamine source. In a study done in the Journal of the International Society of Sports Nutrition, L-Alanyl L-Glutamine and water were administered to college students with induced dehydration of -2.5% while a second group used only water. The group using L-Alanyl L-Glutamine showed a dramatic improvement in their hydration status and well as their serum sodium levels. This group also improved their performance in a treadmill exercise significantly.

    Hoffman JR, et al. Examination of the efficacy of acute L-Alanyl L-Glutamine ingestion during hydration stress in endurance exercise. Journal of the International Society of Sports Nutrition. 7:8, 2010
  • Cyclic cluster dextrin: EFS-PRO delivers a proprietary blend of carbohydrate sources that each offer unique benefits for endurance athletes. These sources work synergistically to achieve optimal performance through varying channels of absorption. The primary carbohydrate used in EFS-PRO is an amylopectin multi-branched cyclic dextrin that’s 100% soluble in water and won’t clump or thicken when mixed, which is a good indication of how it get’s absorbed in the stomach. It’s a high-glycemic carbohydrate that has little effect on insulin and does not inhibit fat oxidation. This means athletes are able to sustain hard efforts through the increased use of fats, which allows them to spare essential glycogen. At 150 mOsm, cyclic dextrin is the lowest-osmolality carbohydrate source available and has been clinically proven to have the fastest gastric emptying time of any carbohydrate. This low-osmolality and superior gastric emptying times means athletes can be assured what they drink goes directly to working muscles immediately. This also means EFS-PRO can be mixed at stronger concentrations and still be absorbed properly. In a published clinical study done on competitive swimmers, those using cyclic cluster dextrin significantly improved swimming time over swimmers using other carbohydrate sources.

    Int J of Sports Med, 26: 314-319, 2005
    Biosci Biotechnol Biochem, 63: 2045-2052 , 1999
  • Sodium Citrate: Sodium citrate is absorbed and metabolized into sodium bicarbonate which causes an alkaline solution that reduces stomach acidity and improves absorption. Alkalizing agents have also been shown to improve performance in high intensity exercise. Sodium citrate has been clinically shown to have the best absorption rates among various sodium sources. A clinical study done on Sodium Citrate showed that, when consumed prior to high-intensity exercise, it reduced blood pH and oxygen debt in healthy males exercising on a cycle ergometer.

    Jain P,. et al. Effect of sodium citrate ingestion on oxygen debt & exercise endurance during supramaximal exercise. Indian J of Med Res. Jul; 118: 42-6, 2003.

Delivers 1400mg of Essential Electrolytes to Prevent Cramping & Maximize Performance

Clinical research shows endurance athletes need much higher levels of electrolytes than most sports drinks provide in order to prevent cramping and dehydration. That’s why each serving of EFS-PRO gives you 1400 mg of the essential electrolytes endurance athletes need to stay hydrated and maximize performance.

Maughan and Shirreffs, 1998. Fluid and electrolyte loss and replacement in exercise. In Oxford textbook of sports medicine, 2nd Edition. Eited by Harris, Williams, Stanish, and Micheli. New York: Oxford University Press, pp. 97-113

Contains No Vitamin C

EFS-PRO is one of the only drink mixes that doesn’t contain Vitamin C. The latest research shows that Vitamin C can have a negative effect on endurance and performance when consumed during exercise.

Braakhius, A., Hopkins, W. G., & Lowe, T. E. (2013). Effect of dietary antioxidants, training, and performance correlates on antioxidant status in competitive rowers. International Journal of Sports Physiology and Performance, 8, 565-572.

Click here to download the EFS research packet in Adobe Acrobat format.


 Supplement Facts

Serving size 3 scoops (40g): makes 12 fluid ounces

Amount Per Serving




     Calories from fat


Total fat

0 g



0 g


Total Carbohydrate (long high branched amylopectin dextrin, short chain maltodextrin, dextrose, sucrose)

30 g





EFS Total Electrolyte Blend  (Ca, Mg, Cl, Na, K)                              



        Calcium (as DiCalcium Malate)                        100mg


        Magnesium (DiMagnesium Malate)                  50mg


        Chloride (as sodium chloride)                           530mg


        Sodium (as sodium chloride and citrate)           500mg


        Potassium (as di-potassium phosphate)             220mg


Hydration Potentiator  (Sustamine® :L-Alanyl L-Glutamine) 



Malic Acid (from DiCalcium and DiMagnesium Malate)



Ultra Pure Amino Acid Blend (L-Glutamine, L-Alanyl L-Glutamine, Leucine, Iso-Leucine, Valine)



*Daily Value Not Established

**Percent Daily Values are based on a 2,000 calorie diet.