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SiS

FUELLED BY SCIENCE.  Science in Sport is the world’s leading performance nutrition brand. Combining world-class knowledge and scientific formulations to provide optimal performance solutions across the nutritional need states of energy, hydration, and recovery. Through our world leading research and innovation programme, we formulate evidence-based products that truly impact performance. We push the boundaries of science and nutrition, so you can push the boundaries of performance. Everything we do is Fuelled by Science.

Showing 1–16 of 40 results

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Beta Fuel is a new generation sports drink powder containing a concentrated amount of 80g of carbohydrates (maltodextrin:fructose in a ratio of 2:1). Beta Fuel was developed in scientific laboratories and in cooperation with the English cycling team Team Sky (pregu Team Ineos).

Beta Fuel is a new generation sports drink powder containing a concentrated amount of 80g of carbohydrates (maltodextrin:fructose in a ratio of 2:1). Beta Fuel was developed in scientific laboratories and in cooperation with the English cycling team Team Sky (pregu Team Ineos).

SiS Beta Fuel Powder 84g
SiS
3.99€
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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.

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.

SiS Go Energy Gel 60ml: 30 pack
SiS
54.99€
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GO energy bar is a nutritious, easily digestible carbohydrate-rich snack for professional and recreational athletes. The preferred choice of many Estonian athletes.

GO energy bar is a nutritious, easily digestible carbohydrate-rich snack for professional and recreational athletes. The preferred choice of many Estonian athletes.

SiS Go Energy Mini Bar 40g
SiS
2.09€
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GO energy bar is a nutritious, easily digestible carbohydrate-rich snack for professional and recreational athletes. The preferred choice of many Estonian athletes.

GO energy bar is a nutritious, easily digestible carbohydrate-rich snack for professional and recreational athletes. The preferred choice of many Estonian athletes.

SiS Go Energy Mini Bar 40g: 30-pack
SiS
47.99€
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SiS GO Isotonic Energy Gel is a gel with a high salt content, which provides an easily digestible and quick supply of carbohydrates during training. The product is designed to be consumed without water, minimizing the risk of bloating that can occur with excessive drinking. GO Isotonic energy gel has 22 grams of carbohydrates per gel. especially suitable for long intense workouts or training in warmer climates 87 calories per gel contains key electrolytes

SiS GO Isotonic Energy Gel is a gel with a high salt content, which provides an easily digestible and quick supply of carbohydrates during training. The product is designed to be consumed without water, minimizing the risk of bloating that can occur with excessive drinking. GO Isotonic energy gel has 22 grams of carbohydrates per gel. especially suitable for long intense workouts or training in warmer climates 87 calories per gel contains key electrolytes

SiS GO Energy+Electrolyte Gel 60ml
SiS
2.35€
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SiS GO Isotonic Energy Gel is a gel with a high salt content, which provides an easily digestible and quick supply of carbohydrates during training. The product is designed to be consumed without water, minimizing the risk of bloating that can occur with excessive drinking. GO Isotonic energy gel has 22 grams of carbohydrates per gel. especially suitable for long intense workouts or training in warmer climates 87 calories per gel contains key electrolytes

SiS GO Isotonic Energy Gel is a gel with a high salt content, which provides an easily digestible and quick supply of carbohydrates during training. The product is designed to be consumed without water, minimizing the risk of bloating that can occur with excessive drinking. GO Isotonic energy gel has 22 grams of carbohydrates per gel. especially suitable for long intense workouts or training in warmer climates 87 calories per gel contains key electrolytes

SiS GO Energy+Electrolyte Gel 60ml: 30-pack
SiS
66.99€
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The GO Energy+Caffeine Gel 75mg builds on the established science of the GO Isotonic Energy gel, the world’s first and only truly isotonic energy gel. This gel is ideal for short intense exercises and for long endurance exercises.

The GO Energy+Caffeine Gel 75mg builds on the established science of the GO Isotonic Energy gel, the world’s first and only truly isotonic energy gel. This gel is ideal for short intense exercises and for long endurance exercises.

SiS Go Energy+Caffeine Gel 60ml
SiS
2.49€
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The GO Energy + Caffeine Gel 75mg builds on the established science of the GO Isotonic Energy gel, the world’s first and only truly isotonic energy gel. This product provides 22g of carbohydrate and 75mg of caffeine per gel. Ideal for high intensity races and long, tough days on the road. Caffeine has been repeatedly shown to improve performance by lowering your perception of effort by providing a boost just when you need it. GO Energy + Caffeine is clean in the mouth and easy to digest. For when you want an energy boost, but want the benefits of caffeine too. Use before or during sport for added physical and mental focus when you want to get an edge.

The GO Energy + Caffeine Gel 75mg builds on the established science of the GO Isotonic Energy gel, the world’s first and only truly isotonic energy gel. This product provides 22g of carbohydrate and 75mg of caffeine per gel. Ideal for high intensity races and long, tough days on the road. Caffeine has been repeatedly shown to improve performance by lowering your perception of effort by providing a boost just when you need it. GO Energy + Caffeine is clean in the mouth and easy to digest. For when you want an energy boost, but want the benefits of caffeine too. Use before or during sport for added physical and mental focus when you want to get an edge.

SiS Go Energy+Caffeine Gel 60ml: 30pack
SiS
71.99€
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SiS Wide Neck drinking bottle has a unique Easy Mix system (dosing quantities are indicated). The bottle with a waterproof, soft rubber nozzle and an ergonomic shape is dishwasher safe and BPA free.

SiS Wide Neck drinking bottle has a unique Easy Mix system (dosing quantities are indicated). The bottle with a waterproof, soft rubber nozzle and an ergonomic shape is dishwasher safe and BPA free.

SiS Wide Neck Bottle: 600ml
SiS
4.99€
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SiS Wide Neck Pro Yellow Bottle: 800ml
SiS
6.99€
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GO Electrolyte contains a blend of easily digestible, fast-acting carbohydrates and electrolytes (such as sodium) that promote optimal hydration. The combination of energy sources and electrolytes increases your body's ability to absorb water during exercise, maintaining your stamina and protecting against cramping.

GO Electrolyte contains a blend of easily digestible, fast-acting carbohydrates and electrolytes (such as sodium) that promote optimal hydration. The combination of energy sources and electrolytes increases your body's ability to absorb water during exercise, maintaining your stamina and protecting against cramping.

SiS Go Electrolyte Powder 1,6kg
SiS
35.99€
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GO Electrolyte contains a blend of an easily digestible and quick supply of carbohydrate as well as electrolytes (such as sodium) that promote optimal hydration.

GO Electrolyte contains a blend of an easily digestible and quick supply of carbohydrate as well as electrolytes (such as sodium) that promote optimal hydration.

SiS Go Electrolyte Powder 500g
SiS
14.99€
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The drinkable tablet helps to prepare a drink with a high mineral content, which helps to keep the body maximally hydrated, and also helps to prevent muscle cramps. With added caffeine, it gives a boost to mental readiness. One tablet contains 75 mg of coffee. ​

The drinkable tablet helps to prepare a drink with a high mineral content, which helps to keep the body maximally hydrated, and also helps to prevent muscle cramps. With added caffeine, it gives a boost to mental readiness. One tablet contains 75 mg of coffee. ​

SiS Go Hydro+Caffeine tablets
SiS
10.99€
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GO Hydro drinkable tablets help prevent dehydration and promote maximum results.

GO Hydro drinkable tablets help prevent dehydration and promote maximum results.

SiS Go Hydro tablets
SiS
10.99€
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GO Hydro + Caffeine is designed to ensure you are effectively hydrated to produce your best performance. As an effervescent tablet that readily dissolves in plain water, it represents a highly practical approach (simply drop one tablet in your 500 ml water bottle) without the calories to meet your sodium requirements at a specific concentration (30mmol/L). The addition of 75mg of caffeine has been repeatedly shown by sport scientists to improve performance by providing both a physical and mental boost.

GO Hydro + Caffeine is designed to ensure you are effectively hydrated to produce your best performance. As an effervescent tablet that readily dissolves in plain water, it represents a highly practical approach (simply drop one tablet in your 500 ml water bottle) without the calories to meet your sodium requirements at a specific concentration (30mmol/L). The addition of 75mg of caffeine has been repeatedly shown by sport scientists to improve performance by providing both a physical and mental boost.

SiS Go Hydro+Caffeine tablets: 8 pack
SiS
68.99€
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GO Hydro is designed to ensure you are effectively hydrated to produce your best performance.

GO Hydro is designed to ensure you are effectively hydrated to produce your best performance.

SiS Go Hydro tablets: 8 pack
SiS
68.99€