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Isotonic & Hydration Mixes

Powders for making your own sports drink, so you pay for the powder rather than bottled water. Choose OstroVit Isotonic in Lemon Mint, Orange or Pear, Trec Isotonic Sport in Lemon, Watermelon or Orange, or OstroVit Aqua Kick VIT&MIN, a flavoured vitamin and mineral drink powder.

What isotonic means

An isotonic drink is mixed to roughly the same concentration as your body fluids, with carbohydrate and electrolytes together. It sits between a hypotonic drink (weaker, mainly for fluid) and a hypertonic one (stronger, mainly for fuel, such as a carb drink or gel). Because the concentration is the point, mix it at the ratio on the label rather than by eye.

Carbohydrate-electrolyte solutions that meet the legal composition criteria contribute to the maintenance of endurance performance during prolonged endurance exercise and enhance the absorption of water during physical exercise.

The three mixes

  • OstroVit Isotonic 500g: 10 g of powder (1.5 scoops) in 300 ml of water, drunk during training. Lemon Mint, Orange or Pear.
  • Trec Isotonic Sport 400g: an isotonic carbohydrate-electrolyte drink mix in Lemon, Watermelon or Orange, for everyday sessions.
  • OstroVit Aqua Kick VIT&MIN 300g: a different kind of product, a vitamin and mineral drink powder. One 10 g scoop flavours about 1.5 litres of water to sip through the day or a workout.

When to use which

Isotonic drinks earn their place in sessions of an hour or more, such as long runs, football or cycling, where you need fluid and carbohydrate together. For shorter gym sessions, sugar-free Electrolytes are usually enough. For long races, add gels from Endurance Fuel, or see the full Hydration & Endurance range.

Isotonic & Hydration Mixes: your questions answered

What is the difference between isotonic and hypotonic drinks?

An isotonic drink matches the concentration of body fluids and supplies carbohydrate as well as fluid. A hypotonic drink is weaker and mainly replaces fluid.

Can I mix my isotonic drink stronger for more energy?

It is better not to. A stronger mix is no longer isotonic and can sit heavily in your stomach during exercise; use a gel if you need more carbohydrate.

Is OstroVit Aqua Kick an isotonic drink?

No. Aqua Kick VIT&MIN is a flavoured vitamin and mineral drink powder, made up much more dilute, about 10 g in 1.5 litres. Use OstroVit Isotonic or Trec Isotonic Sport for an isotonic sports drink.

Are isotonic drinks suitable for children?

These mixes are made for adults during exercise. For most children water is enough; ask a pharmacist if you are unsure.

Isotonic & Hydration Mixes

4 products