With the highest electrolyte content available, EFS drink mix provides everything you need to maximise endurance and performance during exercise.

  • Endurance drink mix
  • For cramping & dehydration

$39.00 Sorry this product is regretably no longer available due to NZ compliance around labeling

Buy 2, save $3.90
Buy 4, save $15.60

We hydrated with the new EFS formula exclusively all spring during ski and bike adventures and can say that you will notice the difference.
— Mountain Flyer Magazine

Average rating



With the highest electrolyte content available (1160mg of all 5 electrolytes/serving), there’s no need to carry those extra electrolyte pills or add anything else. Times have changed. Plus they taste great, not chalky or overpoweringly sweet.



A: Mix 1 sachet in 500-750ml water and hydrate prior to exercising along with sipping every 15 minutes while exercising. 

A: There are 25 servings per container of EFS.

A: EFS 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.


Following exhaustive exercise, athletes fight inflammation, battle oxidative stress, need to repair torn muscle tissue, and have depleted essential glycogen stores. Glycogen is the primary storage carbohydrate in muscles and liver totaling approximately 2,000Kcal in a trained athlete. Muscle glycogen is generally known as the main fuel for strenuous sports activity. Unlike fat, this fuel can be mobilized rapidly under anaerobic condition, which typically occurs under various acute/exhaustive physical exercises. 

Glycogen re-synthesis is the process of converting consumed food into stored glycogen. Even with optimal recovery after a hard workout, full glycogen re-synthesis is difficult to attain within 24 hours and subsequent workouts can begin to suffer. This is especially true when working out or racing for multiple days back to back. Having the ability to replenish glycogen to a greater degree allows athletes to bounce back from exhaustive exercise faster and be better prepared for the next day of training or racing. 

Download Full Research


Ingredients: Complex carbohydrates, sucrose, dextrose, AjiPure Amino Acid Blend (L-Glutamine, Leucine, Iso-Leucine, Valine), Electrolyte blend (chloride, sodium, potassium, magnesium, calcium), acidity regulator (citric acid), antioxidant (ascorbic acid).

Directions: Mix one scoop EFS per 350ml of water. Consume one serving 15-30 minutes before exercise and take one serve during exercise. For additional energy and electrolytes, mix the EFS drink up to 2x strength or use in conjunction with EFS Liquid Shots.



Cramp Crushing and Easy to Stomach!!

Review by Chris
Overall ★★★★★
I have used EFS in training and racing every distance triathlon from sprint to Ironman with fantastic success. As someone diagnosed with Ulcerative Colitis, I need to be extremely careful what I use on the race course. EFS is easy on the tummy and contains just the right mix of electrolytes for those of us who are digestively challenged! Get it, try it, LOVE IT! (Posted on 8/8/2014)


Review by hikingshoes
Overall ★★★★★
I wanted some type of powder so I could take it with me on my backpacking trips and my cycling. I've been using EFS going on two weeks, on the second day of my workout I could feel the differences. This will be in my pack, at the gym, and on my bike each time I'm out. (Posted on 2/25/2014)


Review by ZERO
Overall ★★★★★
I'm in the Marine Corps station on a Japanese Island, OKINAWA. The locals love their fitness as noted by regular 5K, 10K, 1/2 Marathon, Fulls year rd. I tried to run 14mi but repeatedly failed due to cramps. The first time I ran with EFS in my camel bak, I completed it an felt like I could do it again. I'm now using it to training for the Naha Marathon. I'm fully confident I'll be cramp free. (Posted on 9/22/2013)


Review by Vero
Overall ★★★★★
Racing is something that I am starting to learn how to do and I decided to get this product because my boyfriend made me taste it and it was great. The things that I like about it is the fact that it keeps the electrolytes in, the fact that there is not a bunch of crap added to it and no overload of sugar. Not only does this product help me push my boundaries, I know this may be too much information but I have caught a bug lately that has given me dirrhea and this drink is helping me big time with the hydration and electrolytes. (Posted on 2/11/2013)


Review by Cycling Nut
Overall ★★★★★
I was at my local bike shop getting a professional fit and the employee that was doing the fit suggested this to me. I bought a canister of the grape and it is awesome. I rode with my cousin the next day and had a personal best up a long HC climb and I felt the best I had all season. I will never drink anything else. EFS is just awesome!!!!!! (Posted on 8/23/2012)

Great all the time!

Review by Jeff
Overall ★★★★★
Great product. No cramping ever when using, even training and racing in very hot conditions. Love the fact that it is very light flavor and can go down easily when it gets hot. Another great product!!! (Posted on 8/12/2012)

No cramps finally

Review by Brian
Overall ★★★★★
I regularly had cramps with literally dozens of other drinks. I even went as far as to heavy and light dose the different products to get relief, but there wasn't a golden ticket for my cramping. EFS is one of those drinks that works exactly as prescribed and is THE only drink mix that allows me to ride without cramps. (Posted on 2/22/2012)