IONTMAX
Hydration Drink HD 500 20 g

IONTMAX Hydration Drink HD 500 is a powdered hypotonic electrolyte drink designed for effective fluid and electrolyte replenishment during physical activity. Each serving (20 g / 500 ml) contains a complex of 4 electrolytes – sodium (250 mg), potassium, magnesium, and calcium – supplemented with vitamin C. With an osmolality of approximately 147 mOsm/kg, it promotes rapid water absorption. It contains no artificial flavourings or sweeteners, is vegan-friendly, and is gluten and lactose-free. It is recommended for runners, cyclists, triathletes, and hikers.

Preparation is simple: mix 1 scoop or 1 sachet (20 g) in 500 ml of water and consume as needed before, during, or after physical activity. We do not recommend exceeding the stated dose; a higher concentration would alter the drink's osmolality and reduce the rate of water absorption. The 800 g container provides 40 servings, which, at one serving per day, lasts for nearly 6 weeks of regular training.

IONTMAX HD 500 is designed for hydration before, during, and after physical activity. It provides the greatest benefit during long efforts, heavy sweating, or hot weather when the body loses large amounts of electrolytes. Its hypotonic formulation (osmolality ~147 mOsm/kg) ensures rapid absorption, making it particularly effective directly during training or races. We recommend sipping at regular, small intervals throughout the activity.

A hypotonic drink has a lower concentration of dissolved substances than bodily fluids. IONTMAX HD 500 has an osmolality of ~147 mOsm/kg, which is significantly lower than blood plasma (~285–295 mOsm/kg). Therefore, water is absorbed from the digestive tract faster than with isotonic drinks (~270–330 mOsm/kg). This makes it the ideal choice for long endurance efforts where rapid hydration, rather than primary energy intake, is the priority.

One serving (20 g / 500 ml) contains 250 mg of sodium, the most important electrolyte lost in sweat. The formula is supplemented with potassium (from potassium chloride), magnesium (from magnesium carbonate), and calcium (from calcium lactate). Magnesium contributes to normal muscle function and helps reduce tiredness, while calcium supports muscle function. The total salt content per serving is 0.64 g (it does not contain sodium chloride).

Yes, IONTMAX Hydration Drink HD 500 is completely vegan-friendly. It contains no animal-derived ingredients or by-products. In addition to being vegan, the product is gluten-free, lactose-free, and contains no dairy components, making it suitable for those with lactose intolerance or coeliac disease. All electrolyte and vitamin sources are of plant or mineral origin.

IONTMAX HD 500 does not contain any common allergens. The product is gluten-free, lactose-free, and contains no dairy ingredients. It complies with current European standards regarding allergen-free labelling. It is therefore suitable for those with coeliac disease, lactose intolerance, and those avoiding dairy. Its natural composition without artificial additives also makes it a safe choice for those sensitive to synthetic ingredients.

One serving (20 g) contains 70 kcal and 17 g of carbohydrates, all of which are in the form of sugars (sucrose). In the prepared drink (500 ml), this represents approximately 3% carbohydrates, ensuring the drink remains hypotonic. It contains no fat or protein. The energy content is derived exclusively from sucrose, which, together with electrolytes, supports water absorption and provides a rapidly available energy source during physical activity.

Yes, IONTMAX HD 500 is specifically designed to replace plain water during prolonged physical activity—running, cycling, triathlon, or hiking. During intense sweating, water alone is not enough as it does not replace the electrolytes, especially sodium, the loss of which can lead to hyponatraemia. The hypotonic formulation with 250 mg of sodium per serving ensures rapid fluid absorption and maintains electrolyte balance, which is crucial during long-term performance.

Standard supermarket sports drinks are usually isotonic or hypertonic and often contain artificial flavourings, artificial sweeteners (e.g., aspartame, acesulfame K), and food colourings. IONTMAX HD 500 is hypotonic (osmolality ~147 mOsm/kg) with a natural composition, meaning fluids are absorbed faster. Furthermore, the powder form reduces the cost per serving and minimises plastic waste compared to pre-packaged bottled drinks.

IONTMAX HD 500 is well-tolerated when used as directed (20 g / 500 ml of water). The hypotonic osmolality of ~147 mOsm/kg does not cause the digestive distress often associated with hypertonic or overly sweet drinks. The product contains no caffeine, artificial sweeteners, or preservatives. Consuming excessive doses in a short period could lead to mineral imbalance, so it is recommended to adhere to the suggested dosage.

IONTMAX HD 500 can be combined with energy gels during long-term efforts lasting more than 90 minutes, such as marathons, ultramarathons, or long bike rides. In such cases, we recommend taking the gel with plain water or a drink without extra sugar to avoid increasing the total carbohydrate concentration in the digestive tract, which would negate the hypotonic nature of the drink. Consult a professional regarding the combination with other electrolyte supplements to avoid excessive sodium intake.