truefuels Launches CoreCtrl, Introducing a New Category in Performance Thermoregulation

truefuels, the performance nutrition brand trusted by endurance athletes worldwide, has unveiled CoreCtrl, a breakthrough innovation that introduces a new category in sports nutrition: performance thermoregulation. Designed to help athletes better manage heat stress in training and competition, CoreCtrl builds on truefuels’ proven expertise in fueling and hydration to address one of the most persistent limits to performance – the body’s ability to handle heat under load.

For years, performance nutrition has focused primarily on replacing what athletes lose through sweat: fluids, electrolytes, and energy. But hydration alone does not solve the core challenge of heat. During exercise, approximately 75-80% of energy is released as heat, and when heat production exceeds the body’s ability to dissipate it, performance is constrained, not by fitness or motivation, but by protective physiological limits.

CoreCtrl is designed to improve how your body handles heat. Built on current sports science and informed by the research of Peel et al. (2024), CoreCtrl supports the body’s natural thermoregulation by enhancing sweat response, improving evaporative heat loss, and reducing internal heat storage. The result is greater control, consistency, recovery and resilience when racing or training in hot conditions.

Unlike stimulants, artificial cooling agents, or hydration replacements, CoreCtrl works alongside hydration and fueling, supporting the physiological systems already built into the body. It has been developed and tested by real athletes, including truefuels Co-Founder and two-time Olympic triathlon champion Alistair Brownlee, whose career has been shaped by both success and hard-earned lessons in extreme heat.

“Our 2026 innovation builds on our core hydration and fueling expertise to help athletes better manage core temperature and heat load. Without diving into proprietary specifics, it involves targeted physiological support through optimised electrolyte balance, fluid dynamics, and nutrient timing that aids the body’s natural cooling mechanisms and maintains cardiovascular stability under heat stress. It’s not about overriding the body’s responses, but about enhancing resilience giving athletes an edge when the heat is on.” Says Alistair Brownlee, Co-Founder of truefuels.

CoreCtrl has been designed to integrate seamlessly with truefuels’ highly popular and effective 40g Gels and Electrolytes, which are already trusted by endurance athletes for their precision fueling, simplicity, and real-world performance. While gels and electrolytes replace the resources lost through sweat, CoreCtrl supports the system that determines how effectively the body can cool itself, making it a complementary addition.

Researched benefits of CoreCtrl include:

• Increases sweat response and gland activation
• Improves evaporative heat loss
• Reduces internal heat storage
• Extends sustainable performance in hot conditions

CEO and Co-Founder Goran Vasiljevic explains the thinking behind the launch:

“At truefuels, we believe heat should be a condition you train and perform in, not a limit you hit. CoreCtrl represents the next evolution of performance nutrition. We’ve invested in refining hydration, electrolytes and fueling for real-world racing. This innovation builds on that foundation, helping athletes manage heat load more effectively while maintaining focus, cardio stability and control under stress. It’s a new category, one grounded in science, field testing, and the realities athletes actually face.”

How CoreCtrl Works

CoreCtrl supports thermoregulation by enhancing sweat gland activation, improving evaporative cooling efficiency, and slowing internal heat accumulation under load. It does not provide artificial cooling; instead, it supports the body’s natural cooling mechanisms and is designed to be used alongside appropriate hydration, electrolyte intake, fueling, and pacing strategies.

Usage Guidance

Athletes are advised to take one serving daily for eight days prior to a hot race or heat-focused training block, mixed with 500 ml of cold water and consumed 30–60 minutes before exercise. As with all truefuels products, athletes are encouraged to practice in training before competition.

With CoreCtrl, truefuels reinforces its position at the forefront of performance nutrition innovation, moving beyond replacement toward control, resilience, and adaptability in the most demanding environments.

For more information, visit truefuels.com.