Free shipping on orders over 1500 Kč
  1. Home
  2. Nutrition
  3. Performance
  4. Intra-Workout
  5. Sports Drinks
  6. Hydration Drink HD 500 800 g
In stock
  • Carbohydrates 17g
  • Potassium 125mg
  • Sodium 250mg
Values per serving 20 g

IONTMAX
Hydration Drink HD 500 800 g

Hypotonic electrolyte drink for rapid hydration and mineral replenishment during running, cycling, and endurance sports.

IONTMAX Hydration Drink HD 500 is a hypotonic electrolyte powder containing a 4-electrolyte complex (sodium, potassium, magnesium, calcium) for effective hydration during endurance sports. Natural formula with no artificial flavours or sweeteners. Vegan, gluten-free, and lactose-free. Ideal for runners, cyclists, triathletes, and hikers.

549 Kč
In stock
Estimated delivery Tuesday 28. 7.

IONTMAX Hydration Drink HD 500 - hypotonic electrolyte drink for rapid hydration and mineral replenishment during running, cycling, and endurance sports.

IONTMAX Hydration Drink HD 500 is a hypotonic electrolyte drink designed for reliable fluid and electrolyte replenishment before, during, and after physical activity. It combines optimal levels of carbohydrates and electrolytes to support water absorption and help maintain hydration during long training sessions, races, or endurance performances.

Each serving (20 g mixed with 500 ml of water) contains 250 mg of sodium, the most vital electrolyte lost through sweat. The formula is complemented by potassium, magnesium, and calcium, which, together with sodium, form a complex of electrolytes essential during sports exertion.

The drink contains approximately 3% carbohydrates, ensuring it remains hypotonic and promotes rapid fluid absorption. The osmolality of the prepared drink is approximately 147 mOsm/kg, which classifies it as a hypotonic beverage suitable for rapid hydration during physical activity.

Hydration Drink HD 500 contains exclusively natural ingredients, with no artificial flavours or sweeteners. It is vegan-friendly and free from gluten and dairy – an ideal choice for runners, cyclists, triathletes, and hikers who prioritise clean, high-quality sports nutrition.

Benefits

  • 250 mg of sodium per serving (20 g / 500 ml) – a key electrolyte lost through sweat
  • Hypotonic drink with an osmolality of approx. 147 mOsm/kg for rapid fluid absorption
  • Complex of 4 electrolytes: sodium, potassium, magnesium, and calcium
  • Contains approximately 3% carbohydrates
  • Carbohydrate-electrolyte solution enhances water absorption during exercise
  • Vitamin C contributes to the protection of cells from oxidative stress
  • Vitamin C contributes to the normal function of the immune system
  • Magnesium contributes to normal muscle function
  • Magnesium helps to reduce tiredness and fatigue
  • Ideal for hydration before, during, and after training or competition
  • Natural composition – no artificial flavours or sweeteners
  • Gluten-free and lactose-free
  • Dairy-free
  • Vegan-friendly
  • Recommended for runners, cyclists, triathletes, and hikers

Why choose a hypotonic drink?

During prolonged physical activity—whether it's running, cycling, triathlon, or hiking—the body loses not only water but also electrolytes, particularly sodium. Water alone may not always ensure optimal hydration, especially during intense or prolonged sweating.

A hypotonic electrolyte drink has a lower concentration of dissolved substances than body fluids, which promotes rapid water absorption. The combination of carbohydrates and electrolytes also contributes to better utilisation of ingested fluids during endurance performance.

Carefully selected natural ingredients

  • Sucrose provides a readily available energy source and works with electrolytes to support water absorption during physical activity.
  • Sodium Citrate is a source of sodium, the most important electrolyte lost in sweat during sports performance.
  • Potassium Chloride provides potassium, one of the main electrolytes involved in maintaining fluid balance in the body.
  • Calcium Lactate is a source of calcium, which contributes to normal muscle function.
  • Magnesium Carbonate provides magnesium, which supports muscle function and helps reduce tiredness and fatigue.
  • Vitamin C contributes to the protection of cells from oxidative stress and supports the normal function of the immune system.

Who is this product for?

IONTMAX Hydration Drink HD 500 is a hypotonic electrolyte drink for runners, cyclists, triathletes, hikers, and all endurance athletes who need effective fluid and electrolyte replenishment. It is particularly recommended for long training sessions, high sweat rates, or hot weather. Its natural formula, free from artificial sweeteners and flavours, makes it the perfect choice for those who value clean sports nutrition.

Directions of use

Mix 1 scoop or 1 sachet (20 g) in 500 ml of water and consume as needed during physical activity or when experiencing increased fluid loss due to sweating. The product is primarily designed for hydration during long-duration physical exertion.

Frequently Asked Questions (FAQ)

What is IONTMAX Hydration Drink HD 500 and what is it for?

IONTMAX Hydration Drink HD 500 is a hypotonic powdered electrolyte drink designed for effective fluid and electrolyte replacement during physical activity. Each serving (20 g / 500 ml) contains a 4-electrolyte complex—sodium (250 mg), potassium, magnesium, and calcium—enriched with Vitamin C. With an osmolality of approximately 147 mOsm/kg, it promotes rapid water absorption. It is free from artificial flavours and sweeteners, vegan, gluten-free, and lactose-free. Recommended for runners, cyclists, triathletes, and hikers.

How is IONTMAX Hydration Drink HD 500 prepared and dosed?

Preparation is simple: mix 1 scoop or 1 sachet (20 g) in 500 ml of water and consume as needed before, during, or after activity. We do not recommend exceeding this ratio, as a higher concentration would change the drink's osmolality and reduce water absorption speed. The 800 g pack contains 40 servings, providing a supply for nearly 6 weeks of regular training.

When should I drink IONTMAX HD 500—before, during, or after training?

IONTMAX HD 500 is designed for hydration at all stages. It is most beneficial during long-duration exertion, heavy sweating, or hot weather. Its hypotonic formula (~147 mOsm/kg) ensures rapid absorption, making it particularly effective during a workout or race. We recommend sipping at regular intervals throughout the activity.

What is a hypotonic drink and how does it differ from an isotonic one?

A hypotonic drink has a lower concentration of dissolved substances than bodily fluids. IONTMAX HD 500 has an osmolality of ~147 mOsm/kg, significantly lower than blood plasma (~285–295 mOsm/kg), allowing for faster absorption from the gut compared to isotonic drinks (~270–330 mOsm/kg). This makes it ideal for endurance exercise where rapid hydration is the priority over pure energy replacement.

How many electrolytes are in one serving of IONTMAX HD 500?

One serving (20 g / 500 ml) contains 250 mg of sodium, the most crucial electrolyte lost in sweat. The formula is balanced with potassium (from potassium chloride), magnesium (from magnesium carbonate), and calcium (from calcium lactate). Magnesium supports muscle function and helps reduce fatigue. The total salt content per serving is 0.64 g (it contains no added table salt/sodium chloride).

Is IONTMAX Hydration Drink HD 500 suitable for vegans?

Yes, IONTMAX HD 500 is fully suitable for vegans. It contains no animal products or derivatives. It is also gluten-free, lactose-free, and dairy-free, making it suitable for those with dietary intolerances or coeliac disease. All electrolyte and vitamin sources are of mineral or plant origin.

Does IONTMAX HD 500 contain gluten, lactose, or other allergens?

No, IONTMAX HD 500 is free from common allergens. It is gluten-free, lactose-free, and dairy-free, complying with European safety standards. It is safe for coeliacs, the lactose intolerant, and those avoiding dairy. The natural composition, free from artificial additives, makes it a safe choice for those sensitive to synthetic ingredients.

How many servings are in the 800 g pack and what flavours are available?

The 800 g pack contains 40 servings of 20 g each. It is available in three flavours: passion fruit, original lemon, and sweet citrus. All flavours use natural extracts—there are no artificial flavourings or sweeteners. Based on one serving a day, the pack lasts almost 6 weeks, offering significant cost savings compared to ready-to-drink bottled sports drinks.

How many calories and carbohydrates are in one serving?

One 20 g serving provides 70 kcal and 17 g of carbohydrates, all in the form of sucrose. In the prepared 500 ml drink, this results in an approximately 3% carbohydrate solution, maintaining the hypotonic effect. It contains no fat or protein. The energy source is sucrose, which aids in water absorption and provides quick fuel during activity.

Can I drink IONTMAX HD 500 instead of plain water during long runs or cycling?

Yes, IONTMAX HD 500 is designed to replace plain water during prolonged activity. When sweating heavily, water alone is insufficient and can lead to hyponatraemia. The hypotonic formulation with 250 mg of sodium per serving ensures faster fluid uptake and maintains electrolyte balance, which is crucial for performance.

What is the difference between IONTMAX HD 500 and regular supermarket sports drinks?

Standard sports drinks are usually isotonic or hypertonic and often loaded with artificial flavours, sweeteners (e.g., aspartame, acesulfame K), and synthetic colours. IONTMAX HD 500 is hypotonic (~147 mOsm/kg) with a natural ingredient profile, allowing for faster fluid absorption. Additionally, the powdered format reduces cost per serving and minimises plastic waste.

Can IONTMAX HD 500 cause stomach issues or side effects?

When used as directed (20 g / 500 ml water), IONTMAX HD 500 is well-tolerated. Its hypotonic osmolality avoids the digestive discomfort often caused by hypertonic or overly sugary drinks. It contains no caffeine, artificial sweeteners, or preservatives. Always adhere to the recommended dosage to avoid mineral imbalances.

Can I combine IONTMAX HD 500 with energy gels during a race?

Yes, IONTMAX HD 500 can be combined with energy gels during endurance efforts lasting over 90 minutes. In such cases, we recommend washing the gel down with water or a drink without extra sugar to avoid increasing the total carbohydrate concentration in your gut, which would compromise the hypotonic nature of your hydration plan. Consult a professional regarding combinations with other electrolyte products to avoid excessive sodium intake.

Ratings and Reviews

This product has not been rated yet. Be the first to rate this product and share your experience. We thank you!

Directions of use

Mix 1 scoop or 1 sachet (20 g) in 500 ml of water and consume as needed during physical activity or when experiencing increased fluid loss due to sweating. The product is primarily designed for hydration during long-duration physical exertion.

Supplement Facts

800 g original lemon
Serving size: 20 g
Servings per container: 40
Nutrition Information Per Serving (20 g) 100 g RI%*
Energy 293 kJ / 70 kcal 1464 kJ / 350 kcal **
Fat 0 g 0 g **
of which saturated 0 g 0 g **
Carbohydrates 17 g 85 g **
of which sugars 17 g 85 g **
Protein 0 g 0 g **
Salt¹ 0.64 g 3.2 g **
*Reference intake of average adult (8400 kj/ 2000 kcal)
**No RI has been established
¹Does not contain sodium chloride.
Ingredients
Sucrose, sodium citrate, potassium chloride, citric acid, vitamin C (ascorbic acid), natural flavouring, calcium lactate and magnesium carbonate.
Allergen Information
It does not contain any allergens.
Warning

Store in a cool, dry place away from direct sunlight and out of the reach of young children. Not suitable for children under 12 years of age. Do not exceed the recommended daily dose. Food supplements should not be used as a substitute for a varied diet.

800 g passionfruit
Serving size: 20 g
Servings per container: 40
Nutrition Information Per Serving (20 g) 100 g RI%*
Energy 293 kJ / 70 kcal 1464 kJ / 350 kcal **
Fat 0 g 0 g **
of which saturated 0 g 0 g **
Carbohydrates 17 g 85 g **
of which sugars 17 g 85 g **
Protein 0 g 0 g **
Salt¹ 0.64 g 3.2 g **
*Reference intake of average adult (8400 kj/ 2000 kcal)
**RI has been established
¹Does not contain sodium chloride.
Ingredients
Sucrose, sodium citrate, potassium chloride, citric acid, vitamin C (ascorbic acid), natural flavouring, calcium lactate and magnesium carbonate.
Allergen Information
It does not contain any allergens.
Warning

Store in a cool, dry place away from direct sunlight and out of the reach of young children. Not suitable for children under 12 years of age. Do not exceed the recommended daily dose. Food supplements should not be used as a substitute for a varied diet.

800 g sweet citrus
Serving size: 20 g
Servings per container: 40
Nutrition Information Per Serving (20 g) 100 g RI%*
Energy 293 kJ / 70 kcal 1464 kJ / 350 kcal **
Fat 0 g 0 g **
of which saturated 0 g 0 g **
Carbohydrates 17 g 85 g **
of which sugars 17 g 85 g **
Protein 0 g 0 g **
Salt¹ 0.64 g 3.2 g **
*Reference intake of average adult (8400 kj/ 2000 kcal)
**No RI has been established
¹Does not contain sodium chloride.
Ingredients
Sucrose, sodium citrate, potassium chloride, citric acid, vitamin C (ascorbic acid), natural flavouring, calcium lactate and magnesium carbonate.
Allergen Information
It does not contain any allergens.
Warning

Store in a cool, dry place away from direct sunlight and out of the reach of young children. Not suitable for children under 12 years of age. Do not exceed the recommended daily dose. Food supplements should not be used as a substitute for a varied diet.

Buying options

IONTMAX Hydration Drink HD 500 20 g
Contains 1 serving
Unit price (1250 Kč / kg)
25 Kč
Flavour
Rating
Original lemon
In stock
Sweet citrus
In stock
IONTMAX Hydration Drink HD 500 800 g
Contains 40 servings
Unit price (686,25 Kč / kg)
549 Kč
Flavour
Rating
Original lemon
In stock
Passionfruit
In stock
Sweet citrus
In stock
Need help?
Do you have any questions about this product? Send us message.
Message has been sent
We normally respond within 24 hours
Shipping Price
  • Fast shipping
  • 3000+ products in stock
  • 1.000.000+ customers
  • Professional customer support
Favorites
Shopping Basket
Loading...
Supplement Facts
Ratings and Reviews
Tip: find quickly everything you need
You can search for categories, products, brands as well as words like "weight loss, diet, muscle, fat, fatigue" ...