Endurance Hydration
Made in NZTwo tanks drain when you train. Hydrafuel refills both. 30g of dual carbs and 530mg of sodium per serve. Dosed for training, not for marketing.
An endurance hydration mix that does both jobs at once. Replaces the salt you sweat out and the fuel you burn through.
30g of dual-pathway carbs and 530mg of sodium per serve, dosed to keep you working past the hour mark without cramping, hitting the wall, or chasing your hydration mid-session.
Maltodextrin, Fructose, Food Acid (Citric Acid), Mineral Salts (Magnesium Lactate, Potassium Chloride), Salt, Natural Tropical Flavour, Natural Colour (Beta Carotene), Sweetener (Sucralose).
Same electrolyte base across Pink Lemonade and Tropical.
Only the flavour notes change. Made in New Zealand.
Before — 30 min out: One serve (2 scoops / 37g) in 500ml water.
During — 60–120 min sessions: 30–90g/hr based on intensity, sipped through. Two serves in 750ml.
Top up — anytime: One serve in 750ml when you need to rehydrate hard.
See the Nutrition section below for the full panel.
Per 37g serve (2 scoops + 600ml water): 541 kJ / 130 kcal
30.3g carbs (10g fructose)
530mg sodium
300mg potassium
150mg magnesium.
NZ orders ship within 1 business day; free over $100, $4.99 flat under. Not happy? Send it back within 30 days — even if the bag is open — for a full refund.
Why this fuel
You can drink a litre mid-session and still cramp on the next set. You can match every sip and still hit the wall at 25km. Two tanks drain when you train. Salt and Fuel. HydraFuel replaces both.
Sodium needs glucose to cross the gut wall fast. Water follows the salt in. That's why a carb + sodium mix rehydrates faster than water or electrolytes ever can. Same mechanism doctors use to treat dehydration.
Your muscles hold about 90 minutes of hard glycogen at 1g/min. After that, pace drops and legs get heavy. 30g of carbs per serve in a 2:1 maltodextrin-to-fructose ratio keeps the tank topped up so the wall never shows up.
Most sports drinks are flavoured sugar water with a sticker. HydraFuel is built on the doses sports science actually calls for.
Before. During. Top up.
Hydrafuel isn't just a pre-workout or a post-workout, it's also the drink you keep in the bottle for the whole session. Mix once, sip through, refill as needed. No timing tricks, no stack to remember.
What you're losing
Sweat takes electrolytes. Effort burns glycogen. Replace one and not the other and you've only solved half the problem. Here's what your body's actually losing and what Hydrafuel puts back.
Pulls fluid back into the bloodstream. Lose too much and the cramps kick in. We dose for the salt and what a hard hour actually pulls out.
Muscles hold ~90 minutes of hard work at 1g/min. After that, pace drops and legs get heavy. 30g per serve in a 2:1 ratio keeps the tank topped up so the wall never shows up.
Sodium's partner. Controls muscle contraction and nerve firing. Without it, the salt does half its job.
The release switch. Without it, muscles fire but can't relax which is what cramping actually is at a cellular level.
Why carbs + electrolytes
Sodium needs glucose to cross the gut wall fast. Water follows the salt in. That's why a carb + sodium mix rehydrates faster than water or electrolytes ever can.
It's the same mechanism doctors use to treat dehydration in hospitals.
What's in the bag
Most sports drinks bury the sodium dose in fine print and dress up the carbs with flashy graphics. Here's the full picture for one 37g serve.
| Energy | 541 kJ / 130 kcal |
| Carbohydrate | 30.3 g |
| of which sugars | 10.9 g |
| of which fructose | 10.0 g |
| Fat | 0 g |
| Protein | 0 g |
| Sodium | 530 mg |
| Potassium | 300 mg |
| Magnesium | 150 mg |
Glucose (from maltodextrin) and fructose ride different highways into your bloodstream: SGLT1 and GLUT5. Single-source carb drinks cap out at ~60g/hr because they share one pathway. Open both with a 2:1 mix and the ceiling lifts to ~90g/hr - The difference between fading at 20km's and finishing strong.
Side by side
The category is full of flavoured sugar-water in pretty packaging. Here's how a serve of Hydrafuel stacks up against water and the typical electrolyte mix.
Why we made it
"They told me I'd never run again. So I did.
KYRO is what that journey built,
because I ran."
Two ACL tears and a year I almost lost. I built KYRO between recovery and the Ironman 70.3 World champs start line. For everyone making their own version of that journey. Chasing a podium, or just showing up for yourself.
Reviews
Hydrafuel is a necessity for my training, its rare to find an electrolyte with 2:1 carb ratio and a good balance of electrolytes, Hydrafuel has fuelled me through massive workouts and races for over a year now. It also tastes great which is a huge bonus!
I used to cramp way to often on my long runs. Switched to Hydrafuel two months ago, haven't had one since. Tropical is the only flavour I drink now.
Tropical doesn't get sickly the way other sports drinks do after a couple of bottles. Still mixes clean from a shaker even when I'm fumbling at an aid station.
FAQ
Anytime you're training for more than 60 minutes, training in heat, or back-to-back days. Take one serve 30 min before, sip through during, and top up after if you're depleted.
It would on its own, but the tropical and pink lemonade flavour profiles are balanced specifically to mask salt without using extra sugar. You'll taste the fruit, not the brine.
It opens two carb absorption pathways at once — SGLT1 for glucose, GLUT5 for fructose. Single-source carbs cap out at ~60g/hr because they share one pathway. A 2:1 maltodextrin-to-fructose blend lifts that ceiling to ~90g/hr, which is the difference between fading at the back end of a long session and finishing the way you started.
It's designed for training, not casual sipping. For shorter sessions under an hour or general daily hydration, water is fine. Hydrafuel earns its place when you're working hard for 60 minutes or more, training in heat, or doing back-to-back days.
Choose Subscribe & Save at checkout to take 10% off every order, shipped on your schedule. Skip, pause or cancel anytime, no lock-in.
If it's not for you, send it back within 30 days for a full refund. Even if the bag is open. No questions, no restocking fee.
Complete the routine
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