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SiS GO Isotonic Energy Gel - 30 Pack

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Was £31.50 Was £45.00

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gluten free
wheat free
dairy free
nut free


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, minimising 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
  • • Flavoured Maltodextrin gel with added sweetener.


Winner of the Queens award for enterprise, this innovative product continues to be seen at the forefront by endurance athletes. Use during endurance sessions and events to help avoid flagging.

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, Soya Free

Nutritional Info

For nutritional information about the individual flavours please contact customer service. Example below is for Orange 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) (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)


GO Isotonic Gel - Blackcurrant

GO Isotonic Gel - Apple

GO Isotonic Gel - Lemon & Lime

GO Isotonic Gel - Pink Grapefruit

GO Isotonic Gel - Cherry

GO Isotonic Gel - Orange

GO Isotonic Gel - Pineapple

GO Isotonic Gel - Tropical

GO Isotonic Gel - Vanilla

GO Isotonic Gel - Fruit Salad

Read More

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 57 Reviews

Our favourite gels


Only one flavor. Would be better to choose 50/50

Mr Reaney

I have never used gels before, I will definitely be using them in future. Easy to use, good tasting and they work.

Mike Birch

All you need for a day's cycling.


Always enjoy SIS gels

Simone Finotti

My favorite gel while cycling, by far.


Very tasty and great on the stomach

Tee Parker

The best tasting gel for me great texture and easy to use no gastro issues either

Ethan Pierce

Firstly the price is perfect. The gel is easy to take and goes down without water. It's easy to take on race day. The flavour is not amazing but it's better than alot of gels and isn't bad enough for you to spit it out like other gels.

richard tongue

Great taste and good boost on them hard efforts

Nigel henman

Great flavour ... my favourite 👍🏻


Really easy to consume and digest and taste great too


Fine, seem to work for me

Alessandro Galloni

really low sugar but high carbohydrates

Craig D

They taste like they have been mixed with plastic yuk, no wonder they were on special.

Anton Peterson

Great taste, easy to consume and easy to open for a quick energy boost whilst on the bike.

Tom L

Quick results and seeing it in my times

James Scott

Great stuff - essential fuel for riding (both indoors and out). These little beauties keep the energy levels up and keep the watts coming.


Does the job nicely

Marcus Richardson

Energy with a superb taste and some sodium to prevent cramping - great stuff

Padraig Blaney

Fantastic products

Mr Baillie

Timely delivery


Works for me and easy to take on the move

Henry Nash

Flavour is good, needs to act quicker

Peter Glass

Excellent easy to use Isotonic Gel , use them for Cycling & running.


Have been using them for years and always add that bit extra


Gave me a real boost


Great, just what I needed.


Awesome gels!The only type I use

Hannu Lempinen

Easy to drink and without sweet taste.



Connor Denny

Amazing flavour


Top gear, good flavour/consistency

Heather Doak

My 16 yr old son loves these for intense training sessions at the gym or on the field.


Great taste


Great product. I use these gels from 2 years now and I've never had a problem. Good flavour and good digestibility !


the taste is good, easy to open


I miglior gel in commercio!


Not as nice as berry ones but still does the job!

Wayne Burridge

Limited use but happy,I would try again


good gusto and good energy


Lo alterno al GO Energy (con caffeina) durante gli allenamenti dai 15km di corsa in su. Molto digeribili


Super gels. Love to use them without water!

Mick Smith

I havent received this delivery.

John McKinley

Handy pack for on the go

Ian D. Wright

Just keeps you going on those long rides when you don't want to stop for a break. Good energy boost before a hard climb too.

Craig Carter

Only boughtvas were on offer. Taste is not the best but ok and does the job.

ingus rigass

Did not get tropical flavour as ordered. Customer service was excellent in arranging and delivering different flavour. Did care much about the exact flavour, but was left very satisfied with customer service!


Easy to consume, gentle on the stomach, excellent.

Susan Watson

Always excellent value for long distance training and racing

Unai Balenciaga Gaztelurrutia

excellent for cycling rides

rodger wibberley

I always use sis gels coz the work and sis deliver on time

Andrew White

Really good flavour

Quipo Bam

Erg lekker deze nieuwe smaak

Craig D

80s throwback flavor, pretty sharp I like em a lot. Especially in the last few miles where you are digging in hard.

PPJ Flintshire

Refreshing taste and easy on your stomach.


The best flavour gel I have ever had. Actually unreal !!