Runfinity L’Isotonique isotonic drink powder - In stock and best price in 2026

Q: Runfinity L’Isotonique isotonic drink powder - Tout savoir

Runfinity L’Isotonique is a powdered isotonic drink designed for endurance sports: cycling, running, triathlon, long rides, high-intensity sessions or efforts in high heat. Formulated and made in France, it blends three carbohydrate sources – maltodextrin, glucose and fructose – with a stated 2:1 glucose-to-fructose ratio. A 42 g serving delivers 38.22 g of carbohydrates, underlining its focus on fuelling during exercise. Key features Isotonic drink powder for endurance sports 3 carbohydrate sources: maltodextrin, glucose and fructose 38.22 g of carbohydrates per 42 g of powder Electrolytes: sodium, potassium, calcium and chloride 250 mg of sodium per 42 g of powder, 500 mg per 84 g Vitamins C and E in the formula Lemon and mint flavours with a refreshing finish No artificial colourings, no preservatives and no intense sweeteners Quoted price: €34.90 per box Dosage and use Runfinity provides several mixing guidelines: 21 g for a lighter drink, 42 g for most endurance sessions, and 84 g for long or intense efforts, or when carbohydrate needs are higher. As with any concentrated sports drink, start gradually in training to check personal tolerance. Who is it for? This drink targets endurance athletes who want to easily incorporate carbohydrates and electrolytes into their in-exercise fuelling strategy. It becomes especially relevant once duration, intensity or heat make water alone insufficient. Tested by GravelPassion In testing, the drink proved easy to digest, pleasant to sip and well judged for carbohydrate content. Its fresh flavour works well, particularly in hot weather. Its main limitation is its market positioning: the formula is sound and coherent, but it does not disrupt an already highly competitive category. Higher dosages should be introduced progressively.

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Runfinity L’Isotonique isotonic drink powder - Tout savoir

Runfinity L’Isotonique is a powdered isotonic drink designed for endurance sports: cycling, running, triathlon, long rides, high-intensity sessions or efforts in high heat.

Formulated and made in France, it blends three carbohydrate sources – maltodextrin, glucose and fructose – with a stated 2:1 glucose-to-fructose ratio. A 42 g serving delivers 38.22 g of carbohydrates, underlining its focus on fuelling during exercise.

Key features

Isotonic drink powder for endurance sports
3 carbohydrate sources: maltodextrin, glucose and fructose
38.22 g of carbohydrates per 42 g of powder
Electrolytes: sodium, potassium, calcium and chloride
250 mg of sodium per 42 g of powder, 500 mg per 84 g
Vitamins C and E in the formula
Lemon and mint flavours with a refreshing finish
No artificial colourings, no preservatives and no intense sweeteners
Quoted price: €34.90 per box

Dosage and use

Runfinity provides several mixing guidelines: 21 g for a lighter drink, 42 g for most endurance sessions, and 84 g for long or intense efforts, or when carbohydrate needs are higher. As with any concentrated sports drink, start gradually in training to check personal tolerance.

Who is it for?

This drink targets endurance athletes who want to easily incorporate carbohydrates and electrolytes into their in-exercise fuelling strategy. It becomes especially relevant once duration, intensity or heat make water alone insufficient.

Tested by GravelPassion

In testing, the drink proved easy to digest, pleasant to sip and well judged for carbohydrate content. Its fresh flavour works well, particularly in hot weather. Its main limitation is its market positioning: the formula is sound and coherent, but it does not disrupt an already highly competitive category. Higher dosages should be introduced progressively.