SiS GO Isotonic Energy Gel - Individual
Nutrition
SiS GO Isotonic Energy Gel - Individual
SiS GO Isotonic Energy Gel - Individual
The SiS GO Isotonic Energy Gel is the world's first isotonic energy gel, delivering 22g of fast-absorbing carbohydrates from maltodextrin in a format designed to be consumed without water. Read the overview
At a glance
- Format
- Single 60ml gel
- Carbs per gel
- 22g
31 in stock
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Overview
Is the SiS GO Isotonic Energy Gel the right choice for on-bike fueling?
The SiS GO Isotonic Energy Gel is the world's first isotonic energy gel, delivering 22g of fast-absorbing carbohydrates from maltodextrin in a format designed to be consumed without water. The isotonic formula matches your body's natural fluid balance, so the gel empties from the stomach quickly and gets to work immediately without drawing fluid into your gut. No bloating, no water timing, no mess: just clean, fast carbohydrate delivery when you need it most. Science in Sport developed this gel in 2000, and it remains the go-to choice for elite endurance athletes worldwide, including Grand Tour winners and Olympic medallists.
Each 60ml gel provides 22g of carbohydrates with less than 1g of sugar, giving you sustained energy without a crash. The light, liquid consistency is easy to take on the move: no thick gel to choke down mid-climb. Aim for 1 to 3 gels per hour to hit 60 to 90g of carbohydrate intake during exercise lasting 90 minutes or more. Informed Sport certified, meaning every batch is tested against the WADA banned substances list. If you want a clean, proven, race-tested isotonic gel, this is the benchmark.
All the specs
- Format
- Single 60ml gel
- Carbohydrates per gel
- 22g
- Sugar per gel
- Less than 1g
- Carbohydrate source
- Maltodextrin (from maize)
- Formula type
- Isotonic, no water required
- Calories per gel
- Approximately 87 kcal
- Certifications
- Informed Sport certified, Vegan, Gluten-free
- Usage
- Consume 1-3 gels per hour during exercise. No water required. Aim for 60-90g carbohydrate per hour during efforts over 90 minutes.
FAQ
Good questions
Get to know Science in Sport
There's more to Science in Sport than this one product. Our Science in Sport page has the full Science in Sport lineup we carry and more about the brand.
Visit the Science in Sport page →What makes the SiS GO Isotonic Gel different from other energy gels?
The GO Isotonic Gel is truly isotonic, meaning it matches your body's natural fluid concentration. This allows it to empty from the stomach quickly without needing extra water to dilute it. Most other gels are hypertonic and require water to be consumed alongside them to aid absorption.
How many SiS GO Isotonic Gels should I take per hour?
Aim for 1 to 3 gels per hour during exercise. This delivers approximately 22 to 66g of carbohydrates per hour. For sessions lasting over 90 minutes, target 60 to 90g of carbohydrate per hour to maintain blood glucose and delay fatigue.
Do I need to drink water with the SiS GO Isotonic Energy Gel?
No. Because of the isotonic formula, no additional water is required. The gel is designed to be consumed directly from the packet. However, staying hydrated during exercise is still important. Use a separate hydration product alongside your gel intake.
Is the SiS GO Isotonic Energy Gel Informed Sport certified?
All Science in Sport products are Informed Sport certified. Every batch is independently tested against the WADA banned substances list by an accredited laboratory, making SiS products suitable for competitive athletes at all levels.
Reviews
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