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Go Isotonic Energy Gels - Variety Packs

Easily digestible energy without the need for water
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80 Reviews
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From €33.75

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INGREDIENTS

Nutritional Information

100% APPROVED

Informed Sport

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

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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

4.7/5
80 reviews

by Lucia S

31/10/2025

Molto digeribili

by Luca Liviero

12/09/2025

Ottimo!!!!

by Christian Insam

28/08/2025

I migliori

by FIORENZO STORELLI

17/07/2025

Ottimo prodotto. Lo uso da molti anni e mi sono trovato sempre bene.

by Alan Martin

01/07/2025

Excellent product that really delivers. Price is the only hiccup for me.

by Ponzo Giorgio

21/06/2025

Sono prodotti che ho ripetutamente testato e a mio parere non hanno eguali. Facili da assumere e digeribili, danno un aiuto rapido e sensibile allo sforzo. Assolutmente consigliati.

by Luca Dragani

13/05/2025

I gel sono buoni sia come sapore che come consistenza.

by Eddy Meloni

19/04/2025

Gel Mixed e’ la scelta migliore per avere una varietà di gusti

by Alan Martin

27/03/2025

Great taste and works well in conjunction with the energy gels

by Lorenzo

16/03/2025

Ottimi prodotto per mantenere l'apporto energetico durante lo sforzo fisico durante la corsa su lunghe distanze e sport di montagna

by MATTEO

20/02/2025

comodi e molto pratici, buona fonte di energia subito disponibile e digeribile

by Giovanni

16/01/2025

Per me i gel isotonici Sis vincono per il gusto che non nausea mai e per la facilità di utilizzo.

by Roberto Aprè

24/09/2024

Buoni, sono poco dolci ma molto leggeri

by roberto dallago

04/09/2024

Ottimo prodotto

by Signora Tiziana Sporzon

12/06/2024

Ottimo prodotto

by Antonella

27/05/2024

Prodotto ottimo per il mio allenamento di corsa

by Salvatore Di Bartolo

24/05/2024

Ottimi, con i guanti invernali se non voglio rischiare di sporcarmi, mi tocca fermarmi per berla. Forse sarebbe meglio usare una confezione con il tappo.

by Adam Nelson

20/05/2024

Great stuff

by Andrea Benesso

25/04/2024

Sempre ottimi

by Peggy Crome

17/09/2025

Always use these - the best I've tried.

by Emily Taylor

05/06/2025

Good introduction to different flavours.

by Signora Tiziana Sporzon

14/04/2025

Gel molto digeribili

by Alessio Panzeri

21/03/2025

Prodotti ottimi e super energetici

by Kenny Grant

03/03/2025

Very handy for endurance rides.

by Mr Alan Webb

20/02/2025

They agree with me and help when I need that boost to get home

by Philip Vincent

11/12/2024

Does what it says on the tin

by Peter Cooper

11/11/2024

Great product

by Antonio Palmieri

23/09/2024

fantastici gel

by Luigi Ferrarese

19/09/2024

Prodotto ottimo

by Andrea Bernardi

16/08/2024

Prodotto non ancora arrivato

by ALFONSO Ravizza

29/07/2024

ottimo prodotto molto digeribile. Da consigliare.

by Rg

13/06/2024

Perfetto !

by Simon White

28/05/2024

Great product.

by Antonio Palmieri

22/04/2024

Il mix di gel è ben curato nell'assortimento

by Alessio Panzeri

13/04/2024

Facilmente assimilabili e molto veloci

by andrea Dalle Luche

04/04/2024

Prodotto ottimo,

by aschieri simona

29/03/2024

Gel con quantitativo moderato di carboidrati, ben digeribili ed isotonici

by Marco

27/03/2024

gel ottimi in gara

by MissAleksandraStanek

04/05/2024

I’m happy with this product

by VASCONI

12/04/2024

I gel sono ottimi e con dei gusti piacevoli

by Alessandra Tonucci

08/03/2024

Digeribile durante la fatica. Restituisce energia per continuare

by Attilio Montagner

14/02/2024

Consigliato prodotto assimilabile velocemente

by Fabrizio

12/02/2024

Ottimi gel da 20gr di carbo…

by MICHELE BURACCHI

11/02/2024

piacevole ed importante durante le attività sportive

by Chiara

05/02/2024

Buono ma un po costoso

by Kara

27/01/2024

Great variety in one pack.

by Razer1974

21/01/2024

I find these very helpful when I'm in the gym do a long work out as they give me the extra energy while I'm doing my work out and the taste is really good and they don't take a lot of room up in your bag or in a pocket

by rachel barrett

19/01/2024

I haven’t used it enough yet?

by Federico Gon

14/12/2023

Ottimi e buoni

by fausto sottopietra

14/12/2023

Omaggio super gradito grazie

by Giorgio Corsini

14/12/2023

Cari ma efficaci

by Chas Crisp

14/12/2023

Just to see what the others taste like

by LUCA

13/12/2023

Buono e non da fastidio

by Gareth --

12/12/2023

Why use this when beta is available?

by DAVIDE

12/12/2023

ottimi gel per sport endurance

by Sa Ra

12/12/2023

come sopra

by Roberto

11/12/2023

Utilizzo da anni i gel al limone. Non conosco gli altri gusti quindi non saprei giudicarli. Diciamo che sono ottimi prodotti ma sono anche abbastanza cari!

by Yvette Granger

10/12/2023

good product for use to boost energy when playing football.

by Fugazzi Roberto

18/07/2025

Lo utilizzo da molti anni

by G R

01/06/2025

Easy to take and I find they don't upset my stomach. I love the variety of flavours so I don't get bored taking them to power me for the international Masters Hockey tournaments.

by Alessandro Conti

08/05/2025

Perfetto per le uscite superiori i 60 minuti

by Diego Radici

30/03/2025

Non l’ho ricevuto

by ALFONSO Ravizza

12/03/2025

Ottimo prodotto. Ne faccio uso da tempo e sono pienamente soddisfatto, lo consiglio ampiamente.

by Richard Mc Help

15/10/2024

prodotti di prima qualità. digeribili e molto buoni. li utilizzo da molti anni. sis è una garanzia

by Paolo Peinetti

07/10/2024

Ottimo consiglio

by Tiago Viana

26/09/2024

Great quality product and a great value

by Nigel

29/08/2024

Been using the gels for years. Better value using the subscription option.

by Andrew R - York

21/08/2024

This product never fails to give me a boost when I feel my cycling energy levels starting to drop and it's got me up some big Yorkshire hills with energy to spare at the top, if I remember to eat one 15 mins before the climb.

by Jeff Budden

11/08/2024

Love this product easy to digest never have any problems fantastic on Longer rides

by fabrizio

12/06/2024

Ottimo gusto e tanta energia.Molto digeribile.

by Andreas Maos

30/05/2024

Great variety of flavors

by stefano cappello

29/03/2024

Ottimi prodotti

by Valentina

23/03/2024

Comodo, pratico e indispensabile!

by Jackie Williams

13/03/2024

Gels taste great and are thick enough to run with once opened so they don't spill everywhere.

by Maggie

25/02/2024

Excellent for distance marathon training & events

by G R

12/02/2024

I started using gels on triathlons, and they have quickly become my go-to for energy when playing hockey.

by Gianluigi

30/01/2024

Buoni

Nutrition Overview Science Reviews