A good fit for cyclists, runners and active customers who want convenient, sugar-free electrolyte hydration for shorter sessions, warm-weather training or pre-event preparation.
SIS GO Hydro is an effervescent electrolyte tablet for hydration before and during exercise. Drop one tablet into 500 ml of water, let it dissolve and you have a refreshing grapefruit drink designed to replace key electrolytes lost through sweat. With no added sugar and no meaningful calorie load, it suits training sessions where you want hydration without turning your bottle into a carbohydrate drink.
The formulation combines sodium, potassium, calcium and magnesium, plus B vitamins. Its 30 mmol/L sodium concentration is intended to support fluid balance more effectively than plain water, while the grapefruit flavour offers a tart, lightly fizzy alternative to overly sweet sports drinks. Independent day-to-day testing found the tablets dissolved quickly and the grapefruit flavour pleasantly bittersweet.
For shorter exercise where carbohydrate intake is not needed, SIS recommends consuming 500 ml per hour. You can also prepare a bottle before an event, with directions calling for 500 ml several hours before starting and additional fluid closer to the start. The compact tube is easy to carry in a belt or pack, though pre-mixing your bottle is more practical than opening the tube mid-ride. Use prepared drink within 24 hours and do not exceed four tablets per day.
30 mmol/L sodium
Provides a purposeful sodium concentration to help replace sweat-related electrolyte losses and support fluid balance.
Four-electrolyte blend
Sodium, potassium, calcium and magnesium support a broader hydration profile than plain water alone.
Zero-calorie hydration
Useful when you want to hydrate without adding a conventional sugary sports drink to your nutrition plan.
Fast effervescent mixing
Drop one tablet into 500 ml of water for a convenient, lightly fizzy drink with minimal preparation.
Grapefruit flavour
A refreshing bittersweet taste that offers a welcome change from very sweet hydration products.
B vitamins included
Contains vitamins B1, B2 and B6 as part of the formulation.
Athlete-tested assurance
Informed Sport Registered for customers who value additional batch-testing assurance around prohibited substances.
Broad dietary suitability
Suitable for vegan and vegetarian diets, and free from lactose, gluten, wheat, nuts and soya.
General
Nutrition and formulation
Directions for use
Dietary suitability
Certification
GO Hydro electrolyte formulation
Drop one effervescent tablet into 500 ml of water for a convenient, calorie-free drink designed to replace key electrolytes lost through sweat.
30 mmol/L sodium concentration
Provides a sodium concentration designed to support effective hydration compared with plain water.
Four-electrolyte blend
Combines sodium, calcium, potassium and magnesium to support fluid balance during everyday activity and exercise.
B vitamins
Includes vitamins B1, B2 and B6 to support carbohydrate conversion and protein metabolism.
Informed Sport Registered
Batch-tested sports nutrition suitable for athletes seeking additional assurance around prohibited-substance testing.
SIS is a sports nutrition brand founded in 1992 and focused on fuelling endurance and high-intensity exercise. It is known for developing practical carbohydrate, hydration and recovery products for athletes.
SIS introduced what it describes as the world's first isotonic energy gel, designed to provide carbohydrate during exercise without requiring additional water. The GO isotonic gel range subsequently received the Queen's Award for Enterprise.
