Go further than <br><em>you thought possible.</em>
Sustained Energy

Go further than
you thought possible.

Endurance isn't just cardio. It's the science of energy management — keeping glycogen topped up, hydration balanced, and fatigue at bay over hours of sustained output.

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The Fuel Economy of Performance.

Your body is a machine that runs on chemistry. When glycogen depletes, sodium drops, and lactate accumulates, performance doesn't gradually fade — it hits a wall. The difference between finishing strong and fading is fuel management.

Our Increase Endurance range targets every link in the energy chain: rapid carbohydrate delivery, precision electrolyte balance, oxygen transport, and lactate buffering. Isotonic formulas designed for absorption under stress.

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water_dropHydrateElectrolytes
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Endurance Fuel

Endurance Fuel

Isotonic, fast-absorbing formulas engineered for sustained energy output over hours of demanding performance.

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Endurance Science

The Science of Endurance

Each pillar targets a distinct energy system with clinically validated ingredients at effective dosages.

Fuel Systems
local_fire_department

Fuel Systems

Your muscles burn through glycogen at a rate that outpaces digestion. We use highly branched cyclic dextrins for rapid gastric emptying and sustained glucose delivery without GI distress.

  • ✓ Cluster Dextrin™
  • ✓ Maltodextrin Blend
Hydration
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Hydration

A 2% drop in body mass from sweat impairs endurance by up to 25%. We deliver precision-ratio electrolytes with sodium-glucose co-transport for faster absorption than water alone.

  • ✓ Sodium Citrate (1500mg/L)
  • ✓ Potassium + Magnesium
Oxygen Delivery
air

Oxygen Delivery

VO2 max is the ceiling of aerobic performance. We support nitric oxide production and red blood cell function to maximise oxygen transport to working muscles.

  • ✓ Beetroot Extract (6.4mmol NO3)
  • ✓ Iron Bisglycinate
favoriteHeart Rate Zones

Train by heart rate zone.

Enter your age to calculate personalised heart rate zones. Each zone demands different fuelling strategies — tap a zone to see the optimal nutrition protocol.

Max HR: 194 bpm (Tanaka formula: 208 - 0.7 × age)

Z5 VO2 Max 174–194 bpm
90-100%

Fuelling: Short bursts only — rely on phosphocreatine and glycolysis. No time to digest. Fuel before entering this zone.

arrow_forwardPre-Workout + Caffeine
Z4 Threshold 155–174 bpm
80-90%

Fuelling: High carb demand — 60-90g/hr from fast-absorbing sources. This is where Cluster Dextrin excels.

arrow_forwardCluster Dextrin Gel
Z3 Tempo 136–155 bpm
70-80%

Fuelling: Mixed substrate use — 40-60g carbs/hr plus electrolytes to maintain hydration and glycogen.

arrow_forwardIsotonic Drink + Electrolytes
Z2 Aerobic 117–136 bpm
60-70%

Fuelling: Fat-burning zone — lower carb needs (20-30g/hr). Water and electrolytes are sufficient for sessions under 90 minutes.

arrow_forwardElectrolyte Drink
Z1 Recovery 97–117 bpm
50-60%

Fuelling: Active recovery — focus on rehydration and anti-inflammatory nutrition. Tart cherry and protein for repair.

arrow_forwardRecovery Blend

Endurance Science

The Fuel Protocol

Every ingredient is selected for its ability to sustain energy output, maintain hydration, or delay fatigue over extended efforts. Isotonic, fast-absorbing, and stomach-friendly.

verified Ingredient Spotlight

Cluster Dextrin™

Highly branched cyclic dextrin with ultra-low osmolality. Passes through the stomach faster than any other carbohydrate source, delivering sustained glucose without bloating or GI distress.

+30%
Faster Emptying
60g/hr
Optimal Intake
Race Day Protocol

The Fuel Sequence.

Timing is everything on race day. Here is how to structure your endurance nutrition for sustained energy from start to finish.

3hr Pre PRE

Load

Carb Loader with Cluster Dextrin to top off glycogen stores without GI distress.

Carb Loader
During RACE

Fuel

Energy Gel every 30-45 minutes delivering 30-60g carbs per hour for sustained output.

Energy Gel
Every 20min HYDRATE

Hydrate

Electrolyte mix with sodium citrate to replace sweat losses and maintain plasma volume.

Electrolytes
Post POST

Repair

Recovery Blend with protein, carbs, and tart cherry to accelerate glycogen resynthesis and reduce inflammation.

Recovery Blend

Endurance Intelligence Hub

Use our interactive tools to plan your race fuelling, calculate your target pace, and estimate your sweat rate for optimal hydration strategy.

Race Details sync
info

Science: Endurance events >90min require 60-90g carbs/hr. Dual-source carbs (glucose + fructose) allow absorption rates up to 90g/hr.

FUEL PLAN
245TOTAL CARBS (G)
8GELS NEEDED
70G CARBS / HR
2.1FLUID (LITRES)
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Start fuelling at 30min. Take 1 gel every ~25 minutes with 150ml water.

Race Distance directions_run
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Negative splits (faster second half) are the hallmark of a well-paced race.

PACE BREAKDOWN
4:30MIN / KM
7:14MIN / MILE
13.3KM/H
22:305K SPLIT
Session Data water_drop
SWEAT RATE
2.0L/hr
2.0TOTAL LOSS (L)
2.8% BODY WEIGHT
warning

You are losing more than 2% body weight — performance is likely impaired. Increase fluid intake to 500-800ml/hr.

The Standard

Fuel the distance.
Finish stronger.

Our isotonic formulas use highly branched cyclic dextrins that pass through the stomach faster than traditional carbohydrate sources, delivering energy without the bloating or GI distress that plagues endurance athletes.

Sodium, potassium, and magnesium in research-backed ratios that match real sweat composition. Not a one-size-fits-all tablet, but a precision formula designed for serious endurance performance.

Developed and validated with endurance athletes in real race conditions. Every formula is tested for absorption under physiological stress, GI tolerance, and palatability during extended efforts.

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Frequently Asked Questions

Current research supports 30-60g of carbohydrates per hour for events lasting 1-3 hours, and up to 90-120g per hour for ultra-endurance events when using dual-source carbohydrate formulas (glucose + fructose).

For exercise lasting over 60 minutes, electrolyte replacement is essential. Sweat contains 900-1400mg sodium per litre. Drinking plain water dilutes blood sodium and can lead to hyponatremia. Our formulas match real sweat composition.

While fasted training can improve fat oxidation rates, it impairs high-intensity performance and risks muscle protein breakdown. For race preparation, we recommend training with your race-day nutrition strategy to optimise gut absorption.

Pre-load with sodium (1500mg) 60-90 minutes before, then consume 500-800ml per hour during exercise with electrolytes. Weigh yourself before and after to calculate your individual sweat rate and personalise your plan.

Sustained Endurance Performance

Endurance performance is ultimately limited by fuel availability, hydration status, and the body's ability to buffer metabolic waste. At EFECTIV, our Increase Endurance range is engineered for athletes who need sustained energy output over hours of demanding activity. Our products feature Cluster Dextrin for rapid gastric emptying, precision electrolyte formulas matching real sweat composition, and beetroot extract standardised for nitric oxide production. Whether you are a marathon runner, cyclist, triathlete, or team sport athlete training for sustained performance, our endurance line delivers the fuel, hydration, and recovery support your body needs to go further than you thought possible.