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Mixed Isotonic 20 Gel Pack


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The GO Isotonic Gel was the worlds first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrate for energy during exercise. GO Isotonic Gels are designed to be consumed without water meaning that you can ensure rapid delivery of carbohydrate to your muscles.


  • 4 x GO Isotonic Energy Orange
  • 4 x GO Isotonic Energy Tropical
  • 4 x GO Isotonic Energy Blackcurrant
  • 4 x GO Isotonic Energy Lemon & Lime
  • 4 x GO Isotonic Energy Apple
Delivery Details

EU Delivery Information*

  • Free Standard Delivery over €40 (Zones 1 and 2)
  • Zone 1 Standard EU Delivery (5-7 Working Days) - €4.99
  • Zone 2 Standard EU Delivery (5-7 Working Days) - €14.99
Full Details & International Delivery



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About GO Isotonic Gels

The GO Isotonic Gel was the worlds first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrate for energy during exercise. GO Isotonic Gels are designed to be consumed without water meaning that you can ensure rapid delivery of carbohydrate to your muscles without the feelings of being bloated that can sometimes occur with over-drinking.

Why should I take this gel?

Depleting your carbohydrate stores during exercise is one of the major causes of fatigue. In addition to ensuring optimal carbohydrate stores before exercise, delivering additional carbohydrate during exercise is known to improve performance, race times and delay the onset of fatigue. As such, GO Isotonic Gels represent a highly practical solution to your in-training and competition fuelling strategy by providing you with a quick supply of 22 grams of carbohydrate per gel. Gels can easily be carried in your pocket or your race belt without the requirement for bulky bottles.

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, GO Isotonic Gels can also be consumed with GO Hydro or with GO Electrolyte to ensure a combination of both energy and fluid delivery during exercise.

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Nutritional Info

For nutitional information about the individual products within this pack, please see the relevant product page for each product. Example below is for Pineapple Flavour.

Typical ValuesPer 100mlPer Serving 60ml
Energy 613kj/144kcal 368kj/87kcal
Protein 0.0g 0.0g
Carbohydrate 36g 22g
of which sugars 1.0g 0.6g
Fat 0.1g 0.0g
of which saturates 0.0g 0.0g
Fibre 0.1g 0.0g
Salt 0.01g0.01g


Water, Maltodextrin (from Maize) 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 L-Carnitine gels?

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 SiS Energy products e.g 1 x SiS GO Isotonic Energy Gel and 1 x 500ml SiS 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'?

SiS GO Isotonic gels contain natural flavourings.


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

SiS 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, SiS Gels do not contain aspartame.


Will they fit in my cycle jersey pocket?

Yes! All SiS 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 4.6 out of 5 based on 20 Reviews
Paul Crofts

When the sugar level drops and I'm in need of energy I turn to gels and they do the job.


Nice little bundle with a variety of flavours. Even better, I had 50% off :)

Robert Jessop

Variety of flavours helps with palate fatigue when you have a long event


Favourite energy gels. Flavours I like. Great quality.

Michael Burch

Great tastes, no upset tummy, fast acting, just what you need from an Energy Gel, the only ones I use

Hee Duck Moon

It's a Korean cyclist, but it's a great product to exercise while eating.

Mike Edwards

Good product, I use the gels all the time post running and other exercise ie. swimming and cycling. Easy to digest and help recovery.

Simon M

These have become my go-to gel when running. I love that I can take them without having to wash them down with water.

Peter Shone

Excellent product for keeping my glucose at the correct level when golfing.

Paul Sliwinski

Great offer


Great price and all have a good taste

Emma Raine

Great products, great service.

Nikita Tikhonov

No heartburn effects

Stephanie Land

Perfect for cycling


Excellent value and packaging / container very good and sturdy. Very good choice of flavours.

A C Bruce

Always a good value product.

Dave "Muttley" Pitchell

A good way to top the stores for the winter rides, a nice selection and at a very good price.

John Williams

Had about 3 out of the batch i got and they are lumpy, had these before and never had a problem, still in date but something seems wrong makes it hard to swallow

Home Health UK Ltd

Not received

Mr Matthew Whattam

Great product