Before the session
HYDRAX PRIMER
START FUELLED. START READY.
The wall doesn't wait for the finish line. It shows up in rep 3.
Built for the 25 minutes before you start — delivering carbohydrate and electrolytes before the work begins.
No stimulants. No unnecessary complexity. Pre-session fuel designed for hard starts. In stock and dispatching same day on orders before 1pm AEST.
14 SERVINGS · NO STIMULANTS · PRE-SESSION FORMULA
In stock. Orders placed before 1pm AEST dispatch same day.
Made In
Australia
Dispatch
Shipping Now
Shipping
Free Shipping on Orders Over $95
Part of the HYDRAX system · Before
High-carbohydrate pre-session fuel designed for consumption 25–40 minutes before prolonged training sessions and race-day starts.
About HYDRAX PRIMER
You've trained for this session. You've slept. You've eaten. And then rep 3 arrives and something just isn't there.
HYDRAX PRIMER is built for that problem — the one that starts before you even begin. A high-carbohydrate, high-sodium pre-session fuel designed to be taken 25–40 minutes before hard training and race-day starts. No stimulants. No tingles. No gym-counter ingredients that have no business being near an endurance athlete.
What's inside: 29g of carbohydrates from a 2:1 maltodextrin-to-fructose blend. 1,313mg of sodium. 5,600mg of sodium citrate. Potassium. Magnesium. That's it.
PRIMER works upstream of CORE. Take PRIMER before. Take CORE during. Start better. Stay longer.
Who HYDRAX PRIMER is for
PRIMER is for athletes who treat the session like the race.
Triathletes who've learned the hard way that the swim start sets the tone for everything that follows. Runners who hit a tempo session flat and spend the first 15 minutes wondering why they showed up. Cyclists who know what it feels like when the legs don't come around. HYROX competitors who need to go from zero to threshold in the first 60 seconds. BJJ and combat athletes grinding through hard rolls where intensity builds fast and form breaks down faster.
If you've ever said 'I just didn't have it today' — that's the problem PRIMER is built for.
Disciplines: triathlon, running, cycling, open water swimming, HYROX, duathlon, marathon, ultramarathon, BJJ, combat sports, and any session where you go hard from the first minute.
Why a dedicated pre-session fuel
What's your current pre-session strategy?
Coffee — hoping the caffeine times itself right. A banana — hoping the fructose doesn't sit wrong. A gym pre-workout — designed for someone doing 45 minutes of chest press, not 90 minutes at threshold. Or nothing, because nothing has ever actually worked.
Hoping is not a strategy.
PRIMER is built for the specific demands of a hard endurance start: carbohydrate availability from minute one, sodium loaded before the first drop of sweat, and nothing in the formula that creates GI noise when your heart rate goes through 160.
One serve. 25–40 minutes before. Then go.
30-day money-back guarantee
Love it or your money back. Train with HYDRAX PRIMER for 30 days. If it is not for you, email us and we will refund it.
One pouch per product, per customer, on orders placed directly at hydrax.com.au. Claims must be made within 30 days of delivery. Return postage is at your cost unless the item arrived damaged, faulty, or incorrect. Full conditions in our returns policy.
Directions for Use
Mix approximately 1 heaped scoop (35g) with 300–500ml of water.
Consume 25–40 minutes before prolonged endurance exercise.
For first use: start with 500ml water to assess individual tolerance.
Do not use as a sole source of nutrition.
Mixing Protocol
Serving Size
Serving size: 35g (1 heaped scoop)
Servings per package: 14 (approx.)
Nutrition Information
| Nutrient | Per Serving (35g) | Per 100g |
|---|---|---|
| Energy | 490 kJ | 1,400 kJ |
| Protein | <0.5 g | <0.5 g |
| Fat, total | <0.5 g | <0.5 g |
| – saturated | <0.5 g | <0.5 g |
| Carbohydrates | 29 g | 82 g |
| – sugars | 13 g | 37 g |
| Sodium | 1,313 mg | 3,752 mg |
| Potassium | 220 mg | 629 mg |
| Magnesium | 54 mg | 154 mg |
Average quantities. Approximate values. Based on a 35g serving.
Ingredients
Maltodextrin, Fructose, Acidity Regulator (Sodium Citrate), Minerals (Potassium Citrate, Magnesium Citrate).
Carbohydrate System
A 2:1 maltodextrin-to-fructose blend. Two carbohydrate sources absorbed through separate intestinal pathways. More uptake. Less gut load. The same dual-carbohydrate logic that underpins CORE — applied before the session starts.
Electrolytes
Contains sodium, potassium and magnesium for hydration during endurance exercise.
Per serving: Sodium 1,313mg · Potassium 220mg · Magnesium 54mg
Key Formulation Features
- ●Dual-carbohydrate system (2:1 ratio)
- ●High-sodium electrolyte profile (1,313mg sodium per serving)
- ●Designed for consumption before prolonged endurance efforts
- ●No stimulants. No caffeine. No artificial colours or flavours.
Warnings
Not suitable for children under 15 years of age or pregnant women. Should only be used under medical or dietetic supervision.
Not a sole source of nutrition and should be consumed in conjunction with a nutritious diet.
Should be used in conjunction with an appropriate physical training or exercise program.
If used before exercise, should be consumed in accordance with directions to avoid the possibility of gastro-intestinal upset. Must be consumed with adequate fluid.
Not recommended for use with other pre-workout or stimulant-containing products.
May contain milk, soy, and gluten.
Frequently Asked Questions
Before the session
HYDRAX PRIMER
START FUELLED. START READY.
The wall doesn't wait for the finish line. It shows up in rep 3.
Built for the 25 minutes before you start — delivering carbohydrate and electrolytes before the work begins.
No stimulants. No unnecessary complexity. Pre-session fuel designed for hard starts. In stock and dispatching same day on orders before 1pm AEST.
14 SERVINGS · NO STIMULANTS · PRE-SESSION FORMULA
In stock. Orders placed before 1pm AEST dispatch same day.
Made In
Australia
Dispatch
Shipping Now
Shipping
Free Shipping on Orders Over $95
Part of the HYDRAX system · Before
High-carbohydrate pre-session fuel designed for consumption 25–40 minutes before prolonged training sessions and race-day starts.
About HYDRAX PRIMER
You've trained for this session. You've slept. You've eaten. And then rep 3 arrives and something just isn't there.
HYDRAX PRIMER is built for that problem — the one that starts before you even begin. A high-carbohydrate, high-sodium pre-session fuel designed to be taken 25–40 minutes before hard training and race-day starts. No stimulants. No tingles. No gym-counter ingredients that have no business being near an endurance athlete.
What's inside: 29g of carbohydrates from a 2:1 maltodextrin-to-fructose blend. 1,313mg of sodium. 5,600mg of sodium citrate. Potassium. Magnesium. That's it.
PRIMER works upstream of CORE. Take PRIMER before. Take CORE during. Start better. Stay longer.
Who HYDRAX PRIMER is for
PRIMER is for athletes who treat the session like the race.
Triathletes who've learned the hard way that the swim start sets the tone for everything that follows. Runners who hit a tempo session flat and spend the first 15 minutes wondering why they showed up. Cyclists who know what it feels like when the legs don't come around. HYROX competitors who need to go from zero to threshold in the first 60 seconds. BJJ and combat athletes grinding through hard rolls where intensity builds fast and form breaks down faster.
If you've ever said 'I just didn't have it today' — that's the problem PRIMER is built for.
Disciplines: triathlon, running, cycling, open water swimming, HYROX, duathlon, marathon, ultramarathon, BJJ, combat sports, and any session where you go hard from the first minute.
Why a dedicated pre-session fuel
What's your current pre-session strategy?
Coffee — hoping the caffeine times itself right. A banana — hoping the fructose doesn't sit wrong. A gym pre-workout — designed for someone doing 45 minutes of chest press, not 90 minutes at threshold. Or nothing, because nothing has ever actually worked.
Hoping is not a strategy.
PRIMER is built for the specific demands of a hard endurance start: carbohydrate availability from minute one, sodium loaded before the first drop of sweat, and nothing in the formula that creates GI noise when your heart rate goes through 160.
One serve. 25–40 minutes before. Then go.
30-day money-back guarantee
Love it or your money back. Train with HYDRAX PRIMER for 30 days. If it is not for you, email us and we will refund it.
One pouch per product, per customer, on orders placed directly at hydrax.com.au. Claims must be made within 30 days of delivery. Return postage is at your cost unless the item arrived damaged, faulty, or incorrect. Full conditions in our returns policy.
Directions for Use
Mix approximately 1 heaped scoop (35g) with 300–500ml of water.
Consume 25–40 minutes before prolonged endurance exercise.
For first use: start with 500ml water to assess individual tolerance.
Do not use as a sole source of nutrition.
Mixing Protocol
Serving Size
Serving size: 35g (1 heaped scoop)
Servings per package: 14 (approx.)
Nutrition Information
| Nutrient | Per Serving (35g) | Per 100g |
|---|---|---|
| Energy | 490 kJ | 1,400 kJ |
| Protein | <0.5 g | <0.5 g |
| Fat, total | <0.5 g | <0.5 g |
| – saturated | <0.5 g | <0.5 g |
| Carbohydrates | 29 g | 82 g |
| – sugars | 13 g | 37 g |
| Sodium | 1,313 mg | 3,752 mg |
| Potassium | 220 mg | 629 mg |
| Magnesium | 54 mg | 154 mg |
Average quantities. Approximate values. Based on a 35g serving.
Ingredients
Maltodextrin, Fructose, Acidity Regulator (Sodium Citrate), Minerals (Potassium Citrate, Magnesium Citrate).
Carbohydrate System
A 2:1 maltodextrin-to-fructose blend. Two carbohydrate sources absorbed through separate intestinal pathways. More uptake. Less gut load. The same dual-carbohydrate logic that underpins CORE — applied before the session starts.
Electrolytes
Contains sodium, potassium and magnesium for hydration during endurance exercise.
Per serving: Sodium 1,313mg · Potassium 220mg · Magnesium 54mg
Key Formulation Features
- ●Dual-carbohydrate system (2:1 ratio)
- ●High-sodium electrolyte profile (1,313mg sodium per serving)
- ●Designed for consumption before prolonged endurance efforts
- ●No stimulants. No caffeine. No artificial colours or flavours.
Warnings
Not suitable for children under 15 years of age or pregnant women. Should only be used under medical or dietetic supervision.
Not a sole source of nutrition and should be consumed in conjunction with a nutritious diet.
Should be used in conjunction with an appropriate physical training or exercise program.
If used before exercise, should be consumed in accordance with directions to avoid the possibility of gastro-intestinal upset. Must be consumed with adequate fluid.
Not recommended for use with other pre-workout or stimulant-containing products.
May contain milk, soy, and gluten.
Frequently Asked Questions
What Athletes Say
Tools & Resources
Performance Hub
Sweat Rate Estimator
Estimate your hourly fluid loss to build a baseline hydration protocol.
OpenFueling Strategy Engine
Generate a race-day protocol engineered to your event, environment, and physiology.
OpenGut Training Guide
A practical approach to training gut tolerance for high-carbohydrate fueling.
OpenRace Calculator
All-in-one pace, time, and speed calculator for triathlon, running, and cycling.
OpenTriathlon Calculator
Predict your finish time or required pace across swim, bike, and run legs.
OpenRunning Pace Calculator
Calculate pace, split times, and race predictions for any distance.
OpenCycling Speed Calculator
Work out average speed, distance, and time for road and endurance rides.
OpenDisclaimer: The HYDRAX Strategy Engine and associated tools are provided for educational purposes based on endurance sports science. These tools do not constitute medical advice. Consult with a healthcare professional or qualified sports nutritionist before beginning any new training or fueling protocol. Individual responses to carbohydrate intake vary; please reference the product packaging for mandatory warnings and directions for use.
Australian Made · Small-Batch Production
Start fuelled. Stay fuelled.
Shipping now. Free shipping on orders over $95.