Isostar
Updated on September 5, 2026
Hydrate & Perform Drink Mix Powder, Orange Flavor
0.0(0 ratings)IsostarDescription of Hydrate & Perform Drink Mix Powder, Orange Flavor
Short summary
Hydrate & Perform Drink Mix Powder (Isostar) is an isotonic drink with orange flavor, intended for hydration and energy supply during endurance training. One serving (3 scoops or 40 g), dissolved in 500 ml of water, provides carbohydrates, sodium, calcium, magnesium and vitamin C. The product is designed primarily for longer, intense workouts, where in addition to electrolytes, ongoing carbohydrate intake is also important.
5.5 / 10Our expert rating
Ingredient quality5.5
Formula transparency4.5
Effectiveness4.5
Safety9.5
Independent testing1.0
How to use
Dissolve 3 scoops (approximately 40 g) of granulate in 500 ml of water. The drink is best suited for consumption before, during or after longer or intense workouts, and in hot conditions, when the body needs both fluid and additional energy.
Pros and Cons
Sodium comes from a combination of sodium citrate and sodium chloride – a combination of forms considered a good choice for hydration in this category of products
Contains carbohydrates (35.2 g per serving), which supports simultaneous energy supply during prolonged exercise
Added vitamin C (40 mg per serving) and vitamin B1 (thiamine)
Clearly stated preparation dose (3 scoops/40 g in 500 ml of water) and a clear basic nutrition panel (calories, carbohydrates, sugars)
Does not contain potassium, which, alongside sodium, is one of the key electrolytes lost through sweating
Magnesium is in the form of magnesium carbonate, which has lower bioavailability than organic forms (e.g. citrate, bisglycinate)
Calcium is in the form of calcium salts of orthophosphoric acid (phosphate), also with lower bioavailability than citrate
High sugar content (28 g per serving, mostly sucrose and glucose syrup) – the product is closer to a sports drink than a pure electrolyte supplement, making it less suitable for everyday use
Suitable for
Endurance athletes during longer or intense workouts (over approximately 60-90 minutes) – for simultaneous intake of carbohydrates and sodium
People who train or work in hot conditions and sweat heavily – to support hydration
Users who prefer a liquid preparation with orange flavor instead of tablets or capsules
The drink mainly provides sodium (from sodium citrate and sodium chloride), as well as calcium and magnesium, but does not contain potassium, which – alongside sodium – is one of the main electrolytes lost through sweating (typically around 80-200 mg of potassium per liter of sweat). If you're engaging in longer or very intense exercise in the heat, where you lose larger amounts of sweat, you might consider an additional source of potassium (e.g. through diet - bananas, vegetables) or a product that contains potassium. For standard endurance training, the combination of sodium and carbohydrates in this drink adequately supports hydration (Pérez-Castillo et al., 2024).
The drink contains a relatively high amount of sugar - about 28 g per serving (40 g in 500 ml), mainly from sucrose and glucose syrup, which is intended for ongoing energy supply during exercise. If you have diabetes or another condition requiring you to monitor your sugar intake, consult a doctor or diabetes specialist before use, as without knowledge of your health condition we cannot advise whether and in what amount this product is suitable for you. This is not a substitute for individual medical assessment.
The combination of carbohydrates and sodium is not accidental - sodium in the small intestine speeds up the co-transport of water and glucose, which during prolonged or intense exercise improves hydration compared to plain water (Pérez-Castillo et al., 2024). Isotonic drinks with sugar are therefore designed primarily for use during longer workouts, where the body simultaneously needs energy and fluid with electrolytes. For short-term or low-intensity activity, where additional energy is not needed, such a high amount of sugar makes less sense, and a product with less or no added sugars would be more suitable.
The product is designed primarily for use during longer or intense workouts, or exercise in hot conditions, when the body loses larger amounts of fluid and electrolytes. For everyday hydration during short or moderate activities, plain water is usually sufficient, and daily consumption of 149 kcal and 28 g of sugar from this drink could unnecessarily increase energy intake. It is true that more serious hyponatremia caused by drinking plain water without electrolytes is rare but can be serious (Rangan et al., 2021) - which supports the rationale for electrolyte supplementation during prolonged exertion, but does not mean daily use of this drink is necessary for the average user.
No major allergens listed.
Do not exceed the stated recommended daily dose
Due to the high sugar content, people with diabetes or those monitoring their sugar intake should use caution – we recommend consulting a doctor or dietitian
Pregnant women, breastfeeding mothers and people with kidney or cardiovascular disease should consult a doctor before use
The product is not a substitute for a balanced diet and adequate fluid intake
Ingredients
Sucrose, glucose syrup, acid: citric acid, sodium citrate, maltodextrin, natural orange flavor with other natural flavors, calcium salts of orthophosphoric acid, sodium chloride, magnesium carbonate, vitamin C and thiamine (vitamin B1).
Form:Powder
Dose:3 scoops (40 g)
Available flavors:1 (Orange)
Calcium:160 mg
Magnesium:62 mg
Vitamin C:40 mg
Salt (g):1.12
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