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02 During

Intra-activity drink-mix & gel


02 During contains 45 g of multi-source carbohydrates (maltodextrin, glucose and fructose), and is designed to maintain optimal energy levels, manage hydration, and optimise intake planning. Our unique 2:1:1.5 ratio minimises the risk of gut- and stomach issues.

Fuel wisely

Not hitting that wall

Inadequate or insufficient fueling will result in feeling fatigued and creates a sensation of exhaustion in both the mind and body. Carbs are the obvious choice, but hydration plays an equally important role. Be on top of both, and you'll improve your performance drastically.

No GI-issues

Endurance athletes often suffer from GI issues and cramps. These issues are often caused by dehydration and/or consuming inappropriate or non-optimal carb-ratios. To prevent this, choose a mix of fast- and slow-acting carbs, such as a 2:1 or 2:1:1.5 ratio, and stick to a solid hydration plan.

Minimise intake

Our drink and gel both contain 45 g of carbs and 343 mg of sodium, providing 90 g of carbs per hour with just two units. This drastically minimises what you need to carry and reduces costs for training and races.

02 During


Balanced blend of nutrients for energy management and hydration
Developed by one of the world's leading university, and elite athletes
Unmatched in nutritional composition, carb ratio, intake, and flavour

Carbohydrates (2:1:1.5) 45 g

Since carbohydrates are the main energy source during exercise, the main ingredient of our during sports supplement should be carbohydrates. 02 During contains a mixture of different carbohydrate sources as this enables athletes to absorb and burn more fuel during exercise. Under normal circumstances, glucose uptake is limited to approximately 60 g per hour. The intake of multiple carbohydrate sources, like fructose, elevates carbohydrate absorption in the intestine up to 90 g. per hour. Furthermore, the use of multiple carbohydrate sources makes GI issues to be a thing of the past.

The ratio maltodextrin:glucose:fructose of 2:1:1.5 has been shown to elevate the rate of appearance of systemic glucose/lactate compared to the isocaloric amount of glucose only.

Sodium (NaCI) 343 mg

Sodium is the main electrolyte lost in sweat and the only electrolyte to impact performance during exercise. Other electrolytes (potassium, calcium, magnesium) are also lost in sweat, but in minimal quantities, and don't need to be replenished during activity.

The recommendation is to consume a sports drink with 0.5 – 0.7 g/L sodium for shorter than three hours and 0.7 – 1 g/L sodium for exercise sessions lasting longer than three hours. 02 During, contains a sodium concentration of 0.7 g/L. To one serving of 49 g, 620 mL of water should be added. It is strongly suggested to add sodium in the form of NaCl. One serving, therefore, contains 870 mg of NaCl salt / 343 mg of sodium.


Losing fluids through sweating can lead to dehydration, which impairs performance. It's crucial for athletes to remain hydrated by consuming liquids before, during, and after their activities.

Dehydration can cause muscle cramps and diminished performance if an athlete isn't adequately hydrated during their exercise. Ensure you mix 02 During with enough water, ideally 600-700 ml.

Insufficient hydration during sports can have various adverse effects. One primary concern is the loss of sodium through perspiration. Sodium is vital for maintaining the body's fluid balance and muscle function. A deficiency in sodium can result in hyponatremia, a condition where the blood's sodium levels become too low. This can lead to symptoms like nausea, headaches, weakness, cramps and gut issues.

Furthermore, carbohydrates play a pivotal role as an energy source during physical activities. Without adequate carbohydrate intake, an athlete can experience rapid fatigue, negatively impacting performance. The body relies on carbohydrates to replenish glycogen, the primary energy storage in muscles. A lack of glycogen can result in fatigue, reduced muscle strength, and decreased endurance.

In conclusion, it's essential for athletes to drink sufficiently and pay attention to their sodium and carbohydrate intake during sports to ensure peak performance and avoid potential health risks. To rely solely on gels, with some sips of water here and there, is not a good idea.
How to use Use one or two units per hour, depending on intensity & duration.

The Science

Explore the science behind our products and get access to all 1.128 publications used during our research & development


Excellent 4.8 out of 5.0

Strong products, nutritious and tasteful, delivered fast and in easy-to-use packaging.

Eelco Hanraads


Great products, fast delivery, good service and does what it says it does.



I am always very skeptical about these types of products. The two products that I now use before and after every training (Energy...

Reinier Overtoom


Great service and fast delivery. Products are very good. No stomach issues after use of the products.

Stephan de Graaff


Clear ordering process, clear communication on the order and very fast shipment / delivery of the goods. So far Victus met the exp...



The Apple or Tesla of sports nutrition. They're just that far ahead of the field.



Erg lekker, snelle levering, goede service en doet wat het zegt dat het doet.



The best products on the market right now. The effects on my performance are noticed right away. No thick shakes, but easy to drin...

Matthijs Büchli

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A performance-enhancing system, designed around the athlete's needs.

01 Before
starting at €33
01 Before consists of a carefully balanced blend of ergogenic nutrients that enhance your performance and delay fatigue during activity. The composition of 01 Before provides the right amount of energy and focus that you maintain throughout your workout, and without crashing afterwards.
03 After
starting at €39
03 After contains 34 different active nutrients, which all play a crucial role in full-body recovery. 

03 After focuses on muscle recovery as well as repairing tendons, ligaments, joints, blood sugar levels and more, due to a rich, complex mix of both macro-, and micro-nutrients, all perfectly weighted and balanced.

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