PowerBar
Isoactive 600 g

PowerBar Isoactive is an isotonic sports drink in powder form designed to replenish fluids, electrolytes and energy during physical activity. It is formulated for endurance athletes – cyclists, runners and triathletes – who need to maintain hydration and performance during longer training sessions or races. Each serving delivers 29 g of carbohydrates and 5 electrolytes that are lost through sweat. Its isotonic formulation supports rapid fluid absorption during exercise.

Mix 33 g of powder (approximately 1.5 scoops) in 500 ml of water. During exercise, it is recommended to drink 150–200 ml every 15 minutes. This ensures a steady supply of carbohydrates (29 g per serving, 122 kcal) and electrolytes. It is not recommended to mix the drink at different ratios – a solution that is too concentrated may slow fluid absorption and place unnecessary strain on the digestive system during exercise.

PowerBar Isoactive is intended primarily for consumption during physical exercise. A regular intake of 150–200 ml every 15 minutes throughout activity is recommended. The drink can also be consumed shortly before exercise to optimise hydration levels. It is not primarily designed as a post-training recovery drink – products containing protein are better suited for recovery. It delivers the greatest benefit during activities lasting 60 minutes or more.

From a single 600 g tub of PowerBar Isoactive, you can prepare 18 servings (each 33 g), yielding a total of 9 litres of isotonic drink. At the recommended consumption of 500 ml per session, one tub will last you 18 training sessions. Compared with pre-mixed isotonic drinks in bottles, the cost per litre is considerably lower, making it an economical choice for regular athletes.

Yes, PowerBar Isoactive is suitable for both vegetarians and vegans. The product contains no animal-derived ingredients or by-products. It also contains no artificial flavourings or preservatives – natural concentrates from safflower, lemon and red beetroot juice powder are used for colour and flavour. It is therefore also suitable for athletes who prefer a cleaner supplement formulation.

PowerBar Isoactive contains no declared allergens. Based on available information, the product is free from gluten, lactose and other common allergens. The formulation consists of dextrose, maltodextrin, fructose, citric acid, mineral salts and natural flavourings. If you have a specific food allergy or intolerance, we recommend checking the current product label before use, as the formulation may occasionally be subject to change.

The combination of glucose and fructose in a 2:1 ratio enables faster and more efficient energy uptake than glucose alone. Glucose and fructose utilise different intestinal transporters, meaning they can be absorbed simultaneously – allowing the body to process a greater amount of carbohydrates per unit of time. Each serving contains 29 g of carbohydrates (of which 20 g are sugars), which is ideal for maintaining energy levels during endurance performance without placing unnecessary strain on the digestive system.

PowerBar Isoactive contains 5 electrolytes per 33 g serving: sodium (355 mg), chloride (423 mg), potassium (150 mg), calcium (62.1 mg) and magnesium (28.8 mg). Electrolytes are lost through sweat, and a deficiency can lead to muscle cramps, fatigue and reduced performance. Sodium also stimulates thirst and supports fluid retention in the body, which is crucial during prolonged exercise.

An isotonic drink has the same osmolality as blood plasma, which enables the rapid absorption of both fluids and carbohydrates. Plain water contains no electrolytes – during intense exercise, an electrolyte deficit can lead to hyponatraemia. Energy drinks are typically hypertonic, contain caffeine and a higher sugar content, which can slow hydration. PowerBar Isoactive, at the recommended dosage of 33 g per 500 ml, is specifically formulated as an isotonic solution for optimal hydration.

Yes, combining the two is common practice during long endurance events, but total carbohydrate intake should be monitored carefully. If you are consuming energy gels (which are hypertonic), it is recommended to wash them down with a larger amount of plain water rather than an isotonic drink – otherwise there is a risk of gastrointestinal distress. The combined carbohydrate intake from both the drink and gels should not sustainably exceed 60–90 g per hour, depending on individual tolerance.

PowerBar Isoactive is suitable for all endurance sports, not just cycling. The manufacturer also recommends it for running, triathlon and other activities involving intense sweating and prolonged effort. Runners can prepare it in a running bottle or soft flask. The dosage of 150–200 ml every 15 minutes is achievable during long-distance running or marathons, where consistent hydration is essential for maintaining performance.

PowerBar Isoactive 600 g is available in three flavours: lemon, orange and red fruit punch. All variants are flavoured with natural flavourings and contain no artificial colours – natural concentrates from safflower, lemon and red beetroot juice are used for colouring. The choice of flavour has no effect on the nutritional composition or functional properties of the drink – it is purely a matter of personal taste preference.

One serving of PowerBar Isoactive (33 g of powder in 500 ml of water) contains 122 kcal, with energy derived exclusively from carbohydrates (29 g). The drink contains no fat or protein. This caloric value is well-suited to ongoing fuelling during exercise, but is not sufficient to replace a complete meal. The caloric density is designed to deliver energy without overloading the digestive system during physical exertion.

PowerBar Isoactive sets itself apart from many competing isotonic drinks through its combination of 5 electrolytes (not just sodium and potassium), proven 2:1 glucose-to-fructose carbohydrate ratio, and the absence of artificial flavourings and preservatives. Another advantage is its excellent value for money – yielding 9 litres from a single 600 g tub. Some cheaper alternatives contain only basic electrolytes or use artificial colourings. When comparing products, it is important to assess the full formulation rather than just the price per tub.