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GO Isotonic Energy Gel - 6 Pack

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The GO Isotonic Energy Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrate for energy during exercise. They are designed to be consumed without water, minimizing the risk of being bloated that can sometimes occur with over-drinking.
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Product Information

The GO Isotonic Energy Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrate for energy during exercise. They are designed to be consumed without water, minimizing the risk of being bloated that can sometimes occur with over-drinking. Provides you with 22 grams of carbohydrate per gel. Key Features • Truly isotonic formulation - no need for water • 22 grams of rapidly absorbed carbohydrate per gel • Convenient easy-to-take format • Contents: 6 x 60ml gels per pack • Flavored Maltodextrin gel with added sweetener.

Product Uses
Recommended Usage

Consume 1-3 gels per hour to deliver approximately 60 grams of carbohydrate and maximize carbohydrate utilization rates. Where hydration is also important, SiS GO Isotonic Gels can also be consumed with SiS GO Hydro or with SiS GO Electrolyte to ensure a combination of both energy and fluid delivery during exercise.

Directions for Use

Simply tear off the top of the packaging and consume - there is no need to mix with water.


Depleting your carbohydrate stores during exercise is one of the major causes of fatigue. Delivering additional carbohydrate during exercise is known to improve performance, race times and delay the onset of fatigue.

The Isotonic formula allows the gel to empty from the stomach quickly as no fluid needs to be drawn into your stomach to dilute the gel, providing fast energy. SiS GO Isotonic Energy Gels are highly practical and can easily be carried without the requirement for bulky bottles.

Informed Sport Registered

Our complete product range is developed using a world-class approach to banned substance testing, providing assurance for athletes. For more information on Informed Sport & our unique world class approach, click here.

Suitable For: Vegans, Vegetarians, Lactose free, Gluten Free, Wheat Free, Nut Free, Soy Free

Nutritional Info
Typical ValuesPer 100mlPer Serving 60ml
Energy 612kj/144kcal 367kj/86kcal
Protein 0.0g 0.0g
Carbohydrate 36g 22g
of which sugars 1.1g 0.6g
Fat 0.0g 0.0g
of which saturates 0.0g 0.0g
Fibre 0.1g 0.1g
Salt 0.01g0.01g


Water, Maltodextrin (from Maize) (33%), Gelling Agents (Gellan Gum, Xanthan Gum), Natural Flavouring, Acidity Regulators (Citric Acid, Sodium Citrate), Preservatives (Sodium Benzoate, Potassium Sorbate), Sweetener (Acesulfame K), Sodium Chloride, Antioxidant (Ascorbic Acid)

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When should I consume these?

Consume 1-3 gels per hour during endurance exercise to maximise carbohydrate utilisation rates. Alternatively, take one halfway through repeated high intensity exercise (such as football or rugby) to rapidly replenish glycogen stores.


When should I have these versus Electrolyte, Caffeine or Immune?

These should be consumed when you need a fast, convenient energy boost. During endurance exercise lasting over 90 minutes, these should be the main gels that are used throughout a race. Use in combination with other Energy products e.g 1 x GO Isotonic Energy Gel and 1 x 500ml GO Electrolyte to hit 58 grams of carbohydrate (per hour).


Is this gel Isotonic?

Yes, this gel was the first truly isotonic energy gel.


Are these 'natural'?

GO Isotonic gels contain natural flavourings.


Why are these better than regular foods, for example a banana?

GO Isotonic Energy Gels are designed to be absorbed fast into your gut, providing fast energy. Some solid foods can take a while to digest as there's more fat and fibre in whole foods, which during exercise can cause feelings of bloating and discomfort.


Do these contain aspartame?

No, Gels do not contain aspartame.


Will they fit in my cycle jersey pocket?

Yes! All GO Gels are lightweight, compact and designed to fit in jersey pockets, cycle bags and waist packs. They are pressure tested, so don't worry about the packaging tearing or bursting during exercise.


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Verified Reviews

Rated 4.7 out of 5 based on 80 Reviews
K. Graves

This reminds me of a jolly rancher without the over powering sweetness. Easy to use and no stomachache!



Bill Macaulay

great taste and does what it says it will do.

Bryan T.

One of the better tasting flavors!


It is good flavor, but not my favorite


Easy in the tummy Ok flavor Wish it came with more mg of sodium/ electrolytes


For five years I did long distance triathlons with Gu, water, and Gatorade. I always started to peter out at the end, and assumed it was just my training. Made the switch to this product, six months before my last half iron. PR the course by close to 25 minutes over my last half iron distance on similar terrain. The only changes I made were in fueling with this product and increased water intake.

Herman Lopez

Fantastic flavor and delivers much needed energy quickly with no stomach upset.

Jerrold Heyman

after using the variety pack, i found apple flavor to be one of my favorites. glad to have a chance to purchase it on its own.

Riamar Tayam

Truly works and flavor is subtle.

carlos` barrios

Defanally will keep trying this

craig burleigh

Good apple flavor. Not heaven like other gels!! Give it a try!!


Delicous! I like all the flavors.


Pleasant taste, easy to digest


Great promotional trial and an inexpensive way to sample SiS products. I recommend these for anyone looking for a gel that is not overly sweet and is easy to use while riding.

Chance Morgan

Delicious flavor, same great performance as the original Lemon & Lime!


Doesn’t taste great. Only used product once or twice and didn’t notice a difference to training. Good if you need carbs quickly, but rarely do people need that.


If ur not into the caffeinated stuff, this one is pretty good tasting and great supply of the fuel you need to finish up your workouts or races.


Taste like cough medicine, but it seems to work well enough


Great stuff take with me on all my rides


One of my favorite and go to flavors.

Mark Parker

Provides boost of sustained energy


Cherry is good but not my favorite flavor.

Christopher Malenab

Excellent flavor what I want to change from my two favorites (vanilla and apple)


Fantastic gels! I love the consistency and taste. They are less sticky and thick compared to most other gels and I find them much easier to eat mid-ride, particularly since I don’t need to worry about taking a bunch of water with them.

Amie Elve

Cherry is one of my favorite flavors!


keeps me going on shorter 5-10 K runs w/o having to carry a water bottle.

Samuel Barreto

Favorite flavor along with apple


Like this flavor the most

K. Graves

Im biased, this is my favorite flavor. Easy to use, great flavor, no stomach ache!

John T

One of my favorite flavors. Great product in that I don't have to worry about taking with water and timing them with aid stations during a race. I can take them whenever I want or need to.

Bryan Thornton

Love the taste goes down easy would recommend this to friends and maybe competitors

Chance Morgan

Always great! My tried and true.


At first I wasn't entirely taken by the flavor, but this turned out to be one of the best things about the Gels. There is more liquid than most gels I have used in the past, and often the intense flavor can be overbearing. SIS Gel's have a very subtle flavor and are extremely easy to consume, meaning you get the full benefit from the nutrition. I had no gastric upset from the Gel. I took the Gel 1 hr into a 2 hr ride. There was no sugar spike, just a maintained level of energy throughout the rest of my ride.


Great taste. I did not need water.


Good for sustainability during long runs

Elaine Keating

Not my favorite flavor but they went down easy. Nice not to have to drink when taking them.


love them, the presentation is great for longer rides. the packaging will hold when in the hydration pack along with the tools and extra tube.


Tastes good and truly does not need to be taken with water--amazing! The only complaints I have are the full price ($$) and the difficulty to open the packs while running. If my hands are a bit sweaty, it is very hard to open the energy gel pack.


Smooth texture and consistency makes these easy to drink/eat while on a run or bike ride. Flavor is good too!


Given that I don't enjoy Lemon & Lime Gatorade I was a little skeptical however, this taste A LOT better than Gatorade.


Taste good. Nice energy boost.


Taste was ok. Great performance but I don’t like things with artificial sugars.


Great taste, not too thick, heavier than other gel or goo packets but I like waaaay better. Also no nasty post gel burps or tummy rumble.


Unappealing flavor, sloppy and messy when opening and consuming while riding on bike, need to follow with water to get rid of after taste. I'll stick with my favorite GU gel which seems just as effective and much easier to open and consume with out mess. After using one package I'm done with this and have been giving them to friends to sample. No one has asked for a second sample.

Gina Cole

The taste, texture and volume of this product are very unique, and to my liking. I appreciate that I don't need to "wash it down" with more liquid.

Joe Z....

My daughter loves to use these during her triathlons.


Works better than the smaller, "GU" style products.

Chris Fulbright

Great taste and easy to get down. What really makes this gel the best is the packet. It's very easy to open on the bike with no mess.

Simon Thomas

Used them for a while, great for the bike.

carlos` barrios

Good flavor, all product have a good taste, no after taste no water need after raking a gel so overall good product

craig burleigh

Little weak on the orange taste, but it works!!


I like all the flavors. You don't need water with them.


Excellent product that doesn’t make you sick while running.

K. Graves

Not overly sweet which is awesome. Again so easy to use and no stomach issues.


This gels are absolutely amazing. Love everything about them. The flavors, the liquid texture to them and the best part, that they do not cause GI distress under any circumstances. I've used them in training and during racing and no problems whatsoever.


I really like that these are easy to take in and don't need water.


Excellent. Easy to carry and take on the run. Great taste and no need for water.


Not the best taste but got the job done. Gave me energy for my runs.


Great taste and good amount of energy. Not too slow not overly done.


This flavor taste great, probably one of my favorites


Great tasting product perfect for long rides

Cheston VanAlstyne

These gels are great for my long runs and my triathlons.


Really enjoy the flavor, probably one of my favorite.


The Go Energy gel packs are exactly what I need to make it through a rough workout!

Omar Meer

Great taste! Easy on my stomach.


Love the flavor of this one, no off-flavor after-taste, none of the strange gel like stickiness feeling, and no water needed to wash it down!


Tasty, love that u don't need water

Bryan Thornton

Vanilla so so not my favorite but works for a variety


I really like this flavor, Very little aftertaste compared to other flavors. Works as advertised, I can suck them down easily, even when on the rivet.


Favorite flavor! The only thing I don't like is the packet is a little long so it doesn't fit in most of my running shorts pockets. I would prefer a shorter and wider packet.