N² Fuel SISU ENERGY GEL
optimally absorbed for your use
More energy for your body and momentum that carries you to the finish line. Fewer stomach problems and uncertainties.
✓ 1 : 0.8 RATIO OF MALTODEXTRIN AND FRUCTOSE
✓ LOW-OSMOLALITY DE10 MALTODEXTRIN
✓ 1 POUCH, 10 TIMES MORE CARBOHYDRATES
HAVE YOU ENCOUNTERED THESE PROBLEMS?
✓ Stomach doesn't tolerate it
✓ Run out of energy mid-race
✓ Dosage cannot be adjusted
✓ Refuelling is messy
✓ Litter causes annoyance or can even lead to disqualification
Gel is the most effective energy.
We finished it.
Gel is the most efficient energy the body can get during endurance performance. That's why we designed it to work on the body's terms: carbohydrates in a 1:0.8 ratio and low-osmolarity DE10 maltodextrin are absorbed efficiently and leave the stomach undisturbed — energy flows freely when you need it most. And you dose it according to what your body demands right now — not according to a predetermined serving size.
The recipe is not based on trends but on research-backed knowledge of absorption.
SISU ENERGY GEL combines maltodextrin DE10 and crystalline fructose, which use two different transport proteins—SGLT1 and GLUT5—simultaneously for maximum absorption.
Three steps to refueling you can trust
1. Order SISU Energy Gel
The packaging fits directly into your running vest.
2. Start using it already in training
The benefit starts immediately – not just in the race.
3. You can rely on it on race day
One less thing to worry about – energy carries you to the finish line.
We promise you
✓ A taste you won't get tired of.
✓ Energy without stomach problems.
✓ Dose according to your needs.
✓ Based on research, not trends.
✓ Less litter in nature.
team n² fuel
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Eevi Bengs is one of Finland's most successful ultrarunners, with a long list of national and international top achievements. In autumn 2026, she will compete in UTMB in Chamonix.
“It's great to start a collaboration with N² Fuel. In long-duration performances, energy intake plays a
truly important role for a successful outcome. This is an area I constantly strive to improve, and N² Fuel's products provide an excellent opportunity for this.”
- Eevi Bengs -
Risto Mägi is one of Finland's most successful ultra-runners, having won several NUTS ultra-races at distances of 80–160 kilometers.
"One of the most important pieces in the jigsaw puzzle of ultrarunning is energy intake. With N²-Fuel products, I can train effectively and address the challenges of energy intake even better in long race performances. That's why it feels particularly significant to start a collaboration with N²-Fuel."
- Risto Mägi -
Maarja Mägi is one of Finland's most successful female ultrarunners, having won several NUTS ultra races and the Vaarojen Marathon.
"In a good running performance, proper energy intake plays an extremely significant role, which is precisely why starting collaboration with N² Fuel feels particularly valuable. When fueling works, you get more out of both training and competitions. Energy intake is an area in my own running where there is still much to learn, so it's exciting to embark on this learning journey with N² Fuel products."
-Maarja Mägi
