SiS Hydro Tablets – Low-Calorie Electrolyte Hydration

SiS Hydro Tablets are a practical, low-calorie solution for effective hydration before and during sport. Formulated with a scientifically proven sodium concentration (30mmol/L), they help the body retain fluid and replace electrolytes lost through sweat— without added sugars or calories. Originally developed for the British Sailing Team to compete at the 2008 Beijing Olympics, SiS Hydro supports optimal performance in demanding conditions.

Key Benefits

Scientifically Balanced Electrolytes
Each tablet delivers a precise blend of sodium, potassium, and magnesium to support hydration and fluid balance.
Zero Sugar, Virtually No Calories
Ideal when you need to stay hydrated without added carbohydrates or calories.
Effervescent and Easy to Use
Simply dissolve one tablet in 500 mL of water for a fast, refreshing hydration solution.
Supports Pre- and In-Event Hydration
Use before or during shorter workouts when energy intake is not required, or pair with energy products for longer sessions.
Diet-Friendly and Allergen-Free
Suitable for vegans and free from lactose, gluten, wheat, nuts, and soy.

Are SiS Hydro Tablets right for you?

This product is ideal if you’re:

Exercising in hot or humid conditions and need targeted hydration support.
Looking for an electrolyte drink without sugar or calories.
Following a specific dietary plan or managing food sensitivities.
Preparing for or recovering from endurance or high-intensity activities.

Directions

Consume 500ml of SiS GO Hydro 3-4 hours prior to your event with a further 250-500ml in the hours before starting. During the exercise of a shorter length where carbohydrate intake is not necessary, consume 500 ml of SiS GO Hydro per hour. If aiming to combine hydration and energy delivery, consume SiS GO Electrolyte with the SiS GO Gel range.

Do not consume more than 4 tablets per day.

Allergen Info

Free from lactose, gluten, wheat, nuts, and soy.

Contains added B-vitamins - see nutrition facts for more information.

Safe for Sport

Informed-Sport certified

SiS Science in Sport

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