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SiS Mixed GO Isotonic Energy Gels - 30 Pack

  • Contents: 5 x each flavour GO Isotonic Energy Gels (Orange, Lemon & Lime, Blackcurrant, Apple, Cherry, and Fruit Salad)
  • The GO Isotonic Gel is the world's 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
Learn More
20 Reviews
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INGREDIENTS

Nutritional Information

100% APPROVED

Informed Sport

Next Day Delivery

Nutritional Information

All Science in Sport products are certified under the strict guidelines of the INFORMED Sport Programme. To achieve this, an independent organization (LGC Assure) with an accredited, independent laboratory that’s been testing for banned substances for over 20 years, rigorously tests our products to detect all compounds on the World Anti-doping Association Banned Substances list.

Informed Sport

Providing assurance for athletes, All INFORMED Sport certified Science in Sport products are rigorously tested, screening for all compounds on the WADA Banned Substances list.

How It's Tested

1. Product Review

2. Lab Tests (3+)

3. Batch Tests

4. Random Tests

Supplement Testing Labs

Driven by innovation and excellence, INFORMED Sport is the leading independent supplement testing provider, specialising in drug surveillance, doping control and supplement analysis.

Next Working Day Delivery Information:

Weekdays: Orders placed before 6:30pm will be delivered the next day - including on Saturdays.
Weekends: Orders placed before 1pm will be delivered the next day - including Sundays.
Bank Holidays: Orders will not be delivered on Bank Holidays. Any orders placed on a Bank Holiday will not be collected from our warehouse until the next non-holiday day, for delivery the following day.

Please note that Next Day Delivery excludes these postcodes: AB31-56, BF (all), BT (all), FK17-21, GY (all), HS (all), IM (all), IV (all), KA (all), KW (all), PA20-80, PH (all), TR21-25, ZE (all)

Please see specific promotion Terms & Conditions for details BFPO Addresses We do ship to BFPO addresses (with Royal Mail) but for active combat zones there is a strict 2kg weight limit (as with all deliveries to BFPO addresses), so please take this into account when ordering. As a guide, with careful packaging we can just get away with a 1.6kg tub. All orders under this weight limit will be treated as standard UK orders. All orders over this weight will be priced incrementally according to their weight (£5 per 2kg increase). If you have any queries regarding a BFPO address, please contact our Customer Service Team who will be happy to assist with your order.

FUEL YOUR PERFORMANCE

The GO Isotonic Energy Gel is formulated to rapidly delivers 22g of carbohydrate as a source of fast acting energy when you need it most.

FAST ENERGY

Easily digestible by the stomach providing energy fast

ISOTONIC FORMULA

No need for additional water

ON THE GO FUEL

Convenient form-factor for versatile fuelling

SINGLE SOURCE

A liquid carbohydrate energy gel created using maltodextrin

  1. Vitamin B1 & B2 contribute to carbohydrate conversion
  2. Vitamin B6 aids protein metabolism.

USED BY ELITES

A convenient and fast-acting source of liquid carbohydrate, best taken during intense exercise when energy is needed to maintain performance & prevent the onset of fatigue. The isotonic formula means the gel can be used as part of your fuelling strategy without the liquid volume that often leaves you feeling bloated and sluggish.

Officially the World's first Isotonic Energy Gel and Winner of the Queen’s Award for Enterprise in 2015. It continues to be a go-to energy source for elite athletes worldwide.

WHY CHOOSE?

  • Used as part of your fuelling strategy, the GO Isotonic Energy Gel can help you maintain your pace for longer
  • Isotonic formula means no need for additional water or fluids
  • Easily & quickly absorbed by the stomach, providing energy fast
  • No artificial flavours

SUGGESTED USE

Depending on your sport or event, you should aim to consume 1-3+ gels every hour to reach a 60g-90g target intake.

Tear off the top of the packaging and squeeze the contents into your mouth as and when required.

FORMULATED BY SCIENCE

Depleting your carbohydrate stores during exercise is one of the major causes of fatigue. Delivering additional carbohydrate during exercise is known to improve performance.

FUEL DURING EXERCISE

It is recommended to consume between 60-90g of carbohydrates per hour during exercise

Learn more

SUPPORT THE SWEAT

Using GO Isotonic Energy Gels as part of your fuelling strategy can help you maintain your pace for longer, improve endurance and repeated sprint performance by maintaining blood glucose levels.

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. GO isotonic energy gel's formula that enables fast absorption in the stomach, allowing for fast energy uptake the stomach to absorb it quickly and turn it into energy fast without the need for additional dilution liquid to dilute it. This in turn enables the rapid replenishment of depleted glycogen stores.

The dreaded ‘wall’ is a feeling that all endurance athletes fear when approaching a big event or training session. This happens when your muscles have depleted its their available glycogen stores. Glycogen is the stored form of Glucose (sugar) and is your body’s main source of energy. Delivering additional carbohydrates during exercise is known to improve performance and delay the onset of fatigue. The GO Isotonic Energy Gel is designed to deliver this supply of carbohydrate, quickly and easily.

WHAT DOES ISOTONIC MEAN?

Isotonic formula allows the gel to empty from the stomach quickly and no fluid needs to be drawn into your stomach to dilute the gel

Learn more

WHAT DOES ISOTONIC MEAN?

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. GO Isotonic Energy Gels are highly practical and can easily be carried without the requirement for bulky bottles.

Reviews

Reviews

4.6/5
20 reviews

by Colm

28/03/2025

very good fuel, body learns to accept and use it over long time frames and distances.

by JW

23/03/2025

Great product use the pre and post match

by Robert Duncan

04/10/2024

Easy to stomach and consistency lends itself well to running without drinks.

by john and thanks for your order

18/08/2024

Really easy to use on bike rides, highly recommend

by Mr Taylor J Wilson

07/08/2024

Good gels.

by Mark Bamber

17/07/2024

Never fail to hit spot

by Mason Meisuria

26/05/2024

Easy to use

by Ian Hardicker

01/04/2024

Easy to eat whilst riding, easily absorbed without the need for liquids. Great flavours and an almost instant benefit.

by Alex

16/03/2024

Great flavours

by Darren Skilton

04/12/2023

Niiiiiiice

by Becky Silver

14/11/2023

I really like these gels and have used them for runs from 5km to half marathons. All the flavours are terrific and none are too sweet and sickly.

by Chris

17/10/2023

Does what it says it will. Easy on the stomach.

by Tom

09/10/2023

Spot On

by John

04/10/2023

Great on a long day in the saddle. Easy to carry in pocket and digestible

by Lee

27/09/2023

I would give 5 stars for taste if the pack didn't include the Vanilla gel. I love all the fruit and citrus type flavours, but the Vanilla is just odd for me.

by Vraj Patel

17/07/2023

Expire soon

by Sonjia Crow

09/07/2023

Love these gels, great taste and easy to digest. Lightweight for running and simple to open

by Jason Gould

29/06/2023

In my opinion the best tasting gels on the market.

by Ian Budden

10/05/2023

Excellent

by Warren

05/05/2023

Great results.

Nutrition Overview Science Reviews