- Evotonic is the ideal isotonic drink for the most intense athletes, ultra-endurance and high-exertion workouts.
- Complete blend of mixed carbohydrates, electrolytes, hydrolysed protein and amino acids.
- The perfect formula to replenish fluids, electrolytes and energy during your most demanding sessions.
- With 4 different forms of glucose and fructose for maximum absorption.
- Contains Chloride - Sodium and Magnesium. Key electrolytes to replace what is lost through sweat.
- Osmolality values adjusted to the 'isotonic' range: 200 - 330 mOsm/kg. Fully optimised!
- Available in different flavours and unflavoured version. Pick your favourite and share your experience.
- Light isotonic with a clear consistency | Balanced sweetness for an optimal experience | Doesn’t leave your mouth dry.

If you need to take your isotonic drinks one step further: Evotonic
Evotonic from SportSeries is a powdered isotonic drink ready to be mixed with water and consumed during your most demanding training sessions or long-duration competitions where your body undergoes intense exertion. Thanks to its features, Evotonic is an energy drink with sweeteners, free from stimulants, and packed with carbohydrates and electrolytes for energy and mineral replenishment. Plus, its composition enhances water absorption during physical activity.
The reason for using an isotonic drink lies in the importance of maintaining proper hydration during sports, as fluid loss through sweat is significant. Evotonic is a more specific alternative than Evocarbs 2.0 (our other isotonic drink) for ultra-endurance and long-duration sports, where the inclusion of amino acids and proteins plays a key role in nutrition and muscle mass protection.
Evotonic is the favourite isotonic drink of our ultra-endurance athletes, who benefit from its complete nutrient profile. Thanks to their feedback, we've refined Evotonic to the perfect formula you can get today.

A complete isotonic drink with PeptoPro®
Contains 4 different carbohydrates with mixed absorption rates
Carbohydrates have their own characteristic that determines their absorption rate, based on the breakdown of polysaccharides and the passage of glucose into the bloodstream. This characteristic is measured by a numerical value known as the 'glycaemic index'.
The glycaemic index of an isotonic drink should be high on average, but you can’t formulate an isotonic using only monosaccharides, or the contribution would be extremely low—around 60 grams per litre—otherwise it could cause digestive discomfort.
At HSN, we combine different carbohydrate sources, each with unique chemical and nutritional properties, balancing their glycaemic indices by also using next-generation carbohydrates like Cluster Dextrin™:

Or Palatinose™:

This way, we achieve a mixed glycaemic index with excellent digestive tolerance. Evotonic is perfect for those who are more sensitive to carbohydrate intake during training.
Glucose sources and fructose sources. Here's why we combine them
Just like the glycaemic index, the carbohydrates in an isotonic drink must be adjusted based on the types of monosaccharides they provide. It’s not enough to use only glucose sources, because as Jeukendrup states (Jeukendrup is the leading international expert in intra-workout sports nutrition):
The human intestine has a carbohydrate absorption limit, which differs for glucose and fructose, and they do not overlap.
This finding led to the understanding that intra-workout nutrition should no longer rely solely on dextrose, as it did in the past. Now, we must combine different sources of dextrose and fructose.
Cluster Dextrin™, along with the dextrose in the formula, are glucose sources—the main monosaccharide an isotonic drink should contain—while fructose and isomaltulose are fructose sources, a combined intake that optimises the amount of carbohydrates that can be delivered.
To give you an idea of the scale: the absorption limit for glucose-only carbohydrates is around 60g per hour. When fructose is added, it can reach up to 120g per hour depending on the athlete’s level of “digestive training”, but in any case, it increases by at least 50%, up to 90g per hour.

With different mineral salts that replenish electrolytes lost through sweat
Sweating, a classic feature of sports training, must be compensated with proper rehydration. Sweat is not made up of just 'water', but also electrolytes—compounds dissolved in it that disrupt the internal balance.
This is why isotonic drinks must have specific features, including the replenishment of electrolytes lost in sweat: Evotonic contains chloride, sodium and magnesium, key elements that support fluid replacement.
Magnesium contributes to electrolyte balance.
And a specific amount of sodium is also a requirement for a drink to be classified as a 'carbohydrate-electrolyte solution' intended for use during sports activity.
True isotonic drink. Milliosmoles measured directly and adjusted
When we talk about isotonic drinks, we’re referring to solutions with an osmolality equivalent to that of the body’s internal environment.
To achieve this, the drink must maintain an osmolality, once reconstituted as specified, of between 200 and 330 mOsm/kg.
Most companies developing isotonic drinks don’t measure this directly, as it's expensive and requires specialised equipment. Instead, they estimate the resulting concentration, aiming to keep it around 8%, but this isn't enough.
At HSN, we develop all our products with the highest quality standards, and Evotonic is a genuine isotonic drink, verified by direct measurements using an osmometer.
What effects does Evotonic have on you and your athletic performance?
Evotonic is essential for staying properly hydrated during exercise, because since sweat contains electrolytes, rehydrating with tap water alone isn’t enough.
Thanks to the specific properties of carbohydrate-electrolyte solutions, Evotonic enhances water absorption during physical activity.
And not just that—it also helps maintain endurance performance during prolonged exercise, which is why these types of drinks are recommended for sports requiring high aerobic capacity, such as tennis, team sports, athletics, and even power-focused training like CrossFit®.

Evotonic: The best isotonic drink for long-duration sessions
Specifically, Evotonic offers a distinctive advantage during long-duration training sessions or endurance competitions like ultra-endurance events. It also clearly stands out during intense tapering phases before high-level competitions, or in periods of heavy training load when athletes train with very low body fat percentages.
The reason why Evotonic is so highly recommended in these scenarios lies in its inclusion of advanced protein sources: PeptoPro® and amino acids.

PeptoPro® is a highly hydrolysed casein-based protein, with a hydrolysis level above 20%, and a high content of dipeptides and tripeptides.
This means it has excellent digestibility. Otherwise, an intra-workout drink couldn’t contain protein, as it would be far too heavy. That’s not the case with PeptoPro®, which thanks to its protein content:
Helps maintain muscle mass.
Easy-to-drink flavours (Also available unflavoured)
One of the most important aspects of an isotonic drink is how good it tastes—because as a user, you can’t tweak the amount of water you use. If you change the ratio, it stops being isotonic and becomes hypertonic (if you use less water) or hypotonic (if you use more).
We’ve developed Evotonic (and continued improving it) based on feedback from our athletes and the thousands of users who tried the first version of the product. Our current Evotonic has perfectly balanced flavours, with moderate intensity to suit all tastes, and a light sweetness—sweet but subtle, so it’s not overwhelming and doesn’t leave your mouth dry even when drinking large amounts.
And if you’re not into flavoured options—if you don’t want your isotonic drink to taste like “lemon” or anything else—you can choose our unflavoured version, a non-aromatised, lightly sweetened isotonic for a more 'natural', neutral taste experience.
How to take Evotonic? Use it during your sessions!
Evotonic is designed to be used during training sessions or competitions.
That said, nothing stops you from using it as a pre-workout drink to provide your body with energy nutrients you'll use during your session.

How to adapt Evotonic to aid stations?
The way to adapt Evotonic for intra-training (or intra-competition) use depends on the other carbohydrate sources you consume during the session. It’s common in long-duration events—where you have aid stations with food, or you’re carrying your own bars and gels—to need to calculate your total carbohydrate intake.
If you stick to the recommended (ideal) Evotonic ratio for preparing an isotonic drink, you'll be consuming between 2 and 3 scoops of Evotonic per hour of long-duration training (800ml - 1200ml of isotonic drink), which provides between 54 and 81g of carbohydrates per hour.
The recommended carbohydrate intake for experienced athletes per hour, during exercise, is around 90g and can reach up to 120g.
You should consider the carbohydrate contribution from Evotonic together with the other food sources you use to provide carbs, in order to meet your energy needs during endurance events.
Have you heard of Evocarbs 2.0? Your everyday isotonic!
Evotonic is one of HSN's isotonic drinks, but it’s not the only one—you also have Evocarbs 2.0.
Evotonic is designed for athletes involved in longer events, where muscle breakdown is higher and the inclusion of hydrolysed protein and amino acids makes a noticeable difference.
For your typical training sessions—shorter and/or with lower energy demands—you can use Evocarbs 2.0, the “on the road” isotonic formula for athletes, perfect for standard sessions where ultra-endurance and intense muscle wear aren’t so relevant.
Bibliographic references
- Jeukendrup, A., Brouns, F., Wagenmakers, A. J., & Saris, W. H. (1997). Carbohydrate-electrolyte feedings improve 1 h time trial cycling performance. International Journal of Sports Medicine, 18(2), 125–129.
- Phillips, S. M., Turner, A. P., Sanderson, M. F., Sproule, J., & Ward, S. A. (2012). Carbohydrate gel ingestion significantly improves the intermittent endurance capacity, but not sprint performance, of adolescent team games players during a simulated team games protocol. European Journal of Applied Physiology, 112(3), 1133–1141.
- Kanter, M. (2018). High-Quality Carbohydrates and Physical Performance. Nutrition Today, 53(1), 35–39.
- Jeukendrup, A. E. (2004). Carbohydrate intake during exercise and performance. Nutrition, 20(7–8), 669–677.
- Lara, B., Gallo-Salazar, C., Puente, C., Areces, F., Salinero, J. J., & Del Coso, J. (2016). Interindividual variability in sweat electrolyte concentration in marathoners. Journal of the International Society of Sports Nutrition, 13, 31.
- Mata, F., Valenzuela, P. L., Gimenez, J., Tur, C., Ferreria, D., Domínguez, R., … Sanz, J. M. M. (2019). Carbohydrate availability and physical performance: physiological overview and practical recommendations. Nutrients, 11(5).