Energy Gels

Our energy gel products are a quick and convenient way to get a boost of energy whenever you need it. Utilising maltodextrin as a carbohydrate source, GO Isotonic energy gels maintain a low-sugar profile and improve performance with no need for extra water. We produced the world’s first isotonic energy gel, with the GO Energy + Caffeine Gel being clinically proven to improve performance when taken 10 minutes before exercise. Our GO Energy + Electrolyte Gels are formulated with key electrolytes, to replace those lost via sweating. SiS gels are highly beneficial as part of your fuelling strategy without the liquid volume that can leave you feeling bloated and sluggish. Our complete product range has been developed using a world-class approach to banned substance testing, providing assurance for athletes.

Experience the benefits of our energy gels

GO Energy Isotonic Gel is a world-renowned, convenient isotonic fuelling supplement used by athletes worldwide to maintain optimum carbohydrate levels for increased performance. Find your favourite flavour in our popular 15 pack of GO Isotonic Energy Gels. Our Mixed GO Isotonic Energy Gels come in a 35 pack and are a go-to energy source for elite athletes worldwide. With light and compact packaging, our energy gels can easily fit in cycle jersey pockets, cycle bags and waist packs. They’re also pressure tested, so you don’t have to worry about them leaking during exercise!

How do SiS gels fit into your overall fuelling plan?

As an athlete of any sport or a specialised endurance athlete, our GO Energy Isotonic Gel can be used on its own to fulfil your fuelling requirements, or combined with other products from our extensive range of energy supplements. We also have energy bars and bakes that come in a range of flavours to cover every taste! Hand rolled and made from natural fruit ingredients, they’re great as a snack or an energy boost to refuel before or after training and races.

How can we help?

Our friendly team is available seven days a week to help with any questions about your order or our products. You can get in touch via Facebook, WhatsApp, email or live chat. Our help page also features a breakdown of our frequently asked questions, covering delivery, returns and much more.
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16 Products

  1. GO Isotonic Energy Gel 15 Pack – Mixed
    GO Isotonic Energy Gel 15 Pack – Mixed
    Save 22%
    Special Price £20.00 Was £25.50
  2. go-isotonic-energy-gels-30-pack
    GO Isotonic Energy Gel
    13 Flavours
    From £5.25
    Save 22% - 61%
    From £10.50
  3. GO Energy + Caffeine Gels
    GO Energy + Caffeine Gels
    6 Flavours
    From £6.60
    Save 50%
    From £13.20
  4. GO Energy + Electrolyte Gels
    GO Energy + Electrolyte Gels
    3 Flavours
    From £60.00
  5. SIS Mixed Isotonic 20 Gel Pack
    Mixed GO Isotonic Energy Gels - 20 Pack
    Save 50%
    Special Price £17.00 Was £34.00
  6. Beta Fuel + Nootropics
    Beta Fuel + Nootropics
    1 Flavours
    From £72.00
  7. SiS GO Isotonic Gel 60ml 6 Pack Orange
    GO Isotonic Energy Gel Orange 6 Pack
    Save 50%
    Special Price £5.25 Was £10.50
  8. SiS GO Isotonic Gel 60ml 6 Pack Blackcurrant
    GO Isotonic Energy Gel Blackcurrant 6 Pack
    Save 50%
    Special Price £5.25 Was £10.50
  9. SiS GO Energy + Caffeine Gel 60ml 6 Pack Berry
    GO Energy + Caffeine Gel Berry - 6 Pack
    Save 50%
    Special Price £6.60 Was £13.20
  10. GO Isotonic Energy Gel Orange 15 Pack
    GO Isotonic Energy Gel Orange 15 Pack
    Save 61%
    Special Price £10.00 Was £25.50