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CoreCtrl

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CoreCtrl introduces a new category in performance nutrition: thermoregulation support. While most strategies focus on replacing fluids and electrolytes, CoreCtrl is designed to support how effectively your body sheds heat in the first place. When training or racing in hot and humid conditions, it is not just hydration that determines performance, but how efficiently your body can manage rising internal temperature.

  • Supports natural thermoregulation during training and racing
  • Enhances sweat gland activation
  • Improves evaporative heat loss
  • Helps reduce internal heat storage under load
  • Supports sustained performance in hot conditions
  • Designed to work alongside hydration and electrolytes
  • Non-stimulant formula
  • Backed by current sports science research

CoreCtrl

Visit the truefuels store

£28.95
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Translation missing: en.general.icons.icon_check_circle icon 35 in stock, ready to be dispatched

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Standard delivery is delivered via Royal Mail within 3–5 working days. Alternatively, select 24/7 InPost Lockers for a flexible pick-up option.

How to use?

Take 1 serving daily for 8 days before a hot race or heat-focused training block, mixing with 500 ml of cold water 30 to 60 minutes before exercise.

Calculate how much you need here

When to use?

Use during preparation for hot races, training camps, summer events, or when increasing heat exposure in your sessions.

Why do I need this?

If heat regularly limits your pace, power, or consistency, supporting thermoregulation can help you stay in control for longer.

Who uses this?

Endurance athletes, triathletes, cyclists, runners, and anyone training or competing in warm or humid conditions.

Description

During exercise, up to 75% to 80% of energy is released as heat. If that heat is not dissipated effectively, performance becomes limited by protective physiological responses rather than fitness. CoreCtrl is built on current sports science and informed by research such as Peel et al. 2024. It supports sweat response, evaporative cooling, and helps reduce internal heat storage so you can sustain intensity when conditions are challenging.

CoreCtrl is not a stimulant, a coolant, or a replacement for hydration. It works alongside fluids and electrolytes, supporting your body’s existing cooling system. The outcome is not a spike in performance, but greater control, consistency, and resilience when heat would normally become the limiting factor.

For endurance athletes preparing for hot races or heat-focused training blocks, CoreCtrl offers a structured way to upgrade how the body handles thermal stress. It is designed to be integrated into your wider fuelling, hydration, and pacing strategy.

How does it work

CoreCtrl supports the body’s thermoregulation system, the physiological process that allows you to dissipate heat through sweating and evaporative cooling. By enhancing sweat gland activation and improving cooling efficiency, it helps the body shed heat more effectively during sustained efforts. This can contribute to lower internal heat accumulation and improved tolerance to thermal stress.

It does not artificially cool the body. Instead, it supports the natural mechanisms already built into your system. When combined with appropriate hydration and electrolyte intake, CoreCtrl helps maintain effective sweat production and cooling capacity, supporting performance when environmental stress would otherwise reduce output.

Nutrition

Pack of 8

Serving Size: 1 Sachet

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Serving Per Container: 8

Amount Per Serving
Calories 1kcal
Fat 0g
Carbohydrate 0.3g
- of which sugars 0.3g
Salt 0.26g
Sodium 97mg
Magnesium 60mg
Potassium 300mg
Calcium 120mg
Taurine 4g

Ingredients

Directions of use

Mix 1 serving with 500ml of cold water and take daily for 8 days before a hot race or training block, consuming 30 to 60 minutes before exercise.

About truefuels

At truefuels, we believe that the difference between good and great often comes down to how you fuel. Born from decades of elite sport and a relentless pursuit of improvement, our brand was created to deliver clean, effective, and science-backed nutrition for athletes who demand the best from their bodies, and what they put into them.

Co-founded by two-time Olympic gold medallist Alistair Brownlee and performance-driven entrepreneur Goran Vasiljevic, truefuels exists to simplify performance nutrition without compromising on quality. Every product is crafted using the latest research, tested in both the lab and the field, and refined through direct feedback from athletes across disciplines. We don't believe in unnecessary extras, just high-performance ingredients in the right ratios, made to work with your body, not against it.

Fuelled by integrity and backed by a community of passionate athletes, truefuels is more than a product, it's a commitment to being your best. Whether you're chasing a new PB, training for your next event, or out exploring with friends, we’re here to make sure your nutrition keeps up with your ambition. Because performance starts with what you put in.