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Home / Shop / SiS (Science In Sport) / SIS HYDRO+ Electrolyte Drink Mix

A retail display box and individual packets of SIS Hydro+ electrolyte drink mix in orange and mango flavor, shown on a clean light gray background.

A retail display box of SIS Hydro+ electrolyte drink mix in berry flavor, containing 20 single-serve stick packs, shown on a light gray background.

A retail display box and individual packets of SIS Hydro+ electrolyte drink mix in lemon flavor, shown on a clean light gray background.

A 6-pack box of SIS Hydro+ electrolyte drink mix in lemon flavor, shown with one single stick pack standing in front on a light gray background.

A box of SIS Hydro+ electrolyte drink mix in berry flavor, shown with one single stick pack standing in front on a light gray studio background.

SiS

SIS HYDRO+ Electrolyte Drink Mix

£1.59 /

Portable electrolyte sachets providing 1,576mg electrolytes per serving, with added vitamins C, B6 and B12.

Quantity Size: Single Serve

Single Serve Pack of 6 Box of 20

Flavour: Berry

Berry Lemon Orange & Mango

Product variants

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SiS HYDRO+ Electrolyte Drink Mix provides a convenient way to prepare an electrolyte drink for training, events and active days. Each single-serve sachet supplies 1,576mg of electrolytes and is designed to be mixed with water for easy hydration planning.

The formulation brings together sodium, potassium, magnesium, calcium and chloride with added vitamins C, B6 and B12. Available in Berry, Lemon and Orange & Mango, the individual sachets are simple to carry in a pocket, running vest or sports bag without measuring powder from a tub.

Product Specifications

Product: SiS HYDRO+ Electrolyte Drink Mix
Product Type: Electrolyte hydration drink mix
Format: Single-serve powder sachet / stick
Serving Size: 1 sachet
Powder Per Serving: 4.1g serving
Mixing Instructions: Add 1 sachet to 500ml of cold water, then shake or stir until fully dissolved
Best Consumed: Immediately once prepared
Electrolytes Per Serving: 1576mg
Key Electrolytes: Sodium, potassium, magnesium, calcium and chloride
Sodium Per Serving: 350mg
Potassium Per Serving: 300mg
Magnesium Per Serving: 56mg / 56.25mg
Calcium Per Serving: 120mg
Chloride Per Serving: 750mg
Vitamin C Per Serving: 80mg
Vitamin B6 Per Serving: 0.42mg
Vitamin B12 Per Serving: 0.75μg
Primary Use: Hydration and electrolyte support before, during or after exercise
Best For: Running, cycling, triathlon, gym training, endurance sport, hot-weather activity, travel and daily hydration
Available Sizes: Single Serve, Pack of 6 and Box of 20
Available Flavours: Lemon, Orange & Mango and Berry
Dietary / Certification Notes: Vegan, gluten free and Informed Sport certified
Key Features: Pocket-sized sachet, 500ml bottle mix, 1576mg electrolytes, five essential electrolytes, added Vitamin C, B6 and B12, easy hydration on the go

Why We Choose SiS

We choose SiS - Science in Sport because they create trusted sports nutrition products designed to help athletes fuel, hydrate and recover with confidence. From isotonic energy gels and electrolyte tablets to recovery drinks and advanced endurance fuelling, SiS supports runners, cyclists, triathletes and active individuals before, during and after training and racing.

Science-Led – Developed with a clear focus on sports science, performance nutrition and real-world athlete needs.

Easy to Use – Practical fuelling solutions such as isotonic energy gels that are simple to take during exercise, with no unnecessary complexity.

Endurance Focused – Designed to support sustained energy, hydration and recovery across running, cycling, triathlon and high-intensity training.

Trusted by Athletes – Used by everyday athletes and elite performers who need reliable nutrition when performance matters.

That’s why SiS is part of the North Sports collection — giving you proven sports nutrition to fuel harder sessions, support recovery and perform at your best.