CoreCtrl™ – Performance Thermoregulation | truefuels

CoreCtrl™ – Engineered to Complement Your Body’s Physiological Resilience

What CoreCtrl is

Heat isn’t just a condition to deal with during Sport, it’s a limiter. For years, performance nutrition has focused on replacing what you lose in sweat: fluids and electrolytes. But hydration alone doesn’t solve the real challenge, the body’s ability to dissipate internally generated heat quickly enough to maintain control.

CoreCtrl introduces a new category: performance thermoregulation. CoreCtrl is a precision-formulated dietary supplement designed to integrate with your body’s innate physiological systems during periods of high demand.

It is designed to support your body’s innate physiological mechanisms that manage heat under load, working alongside truefuels hydration and electrolytes to help you stay in physiological equilibrium when conditions get demanding.

Its patent-pending composition delivers a high-potency blend of taurine, piperine, and balanced electrolytes, bioactive compounds that play roles in normal metabolic and cellular function when part of a balanced nutritional intake. CoreCtrl pairs seamlessly with strategic hydration and fuelling.

Why it matters

During intense exercise, the human body is remarkably inefficient: only ~20–25% of metabolic energy is converted into mechanical work, while approximately 75–80% is released as heat. This heat must either be dissipated from the body (via convection, radiation, conduction, and evaporation) or it accumulates, raising core temperature and placing strain on physiological systems, a significant metabolic heat load that places demands on the body’s natural thermoregulatory mechanisms.

When core temperature rises, protective mechanisms engage:

  • Central motor drive decreases
  • Cardiovascular reserve is redirected to the skin
  • Carbohydrate oxidation accelerates
  • Perceived effort rises disproportionately
  • Performance drops = you slow down

Performance becomes constrained, not by fitness, motivation, or fuelling, but by thermal strain. Environmental heat and humidity compound the challenge: above ~25 °C, especially with high humidity, evaporative cooling efficiency declines, accelerating heat storage.

How CoreCtrl works

CoreCtrl is engineered to complement the body’s natural processes that help manage heat dissipation — including mechanisms like sweat production and peripheral blood flow — when metabolic demand is high.

Performance-focused thermal control starts with the basics: normal muscle function (potassium, calcium, magnesium), electrolyte balance (magnesium), and reduced tiredness (magnesium).

The 8-day loading approach allows key components to reach meaningful levels before heat stress begins, creating an additive nutritional effect that complements your body's innate capacity to respond under load.

Taurine is one of the most abundant natural amino acids in the human body. It is concentrated in our muscles and preferentially distributed into Type I (endurance) muscle fibres. Taurine is an amino acid lost from muscle during both sprint and endurance exercise. truefuels formulations are always based on the best available research, and CoreCtrl is no exception. It delivers a clinical dose of taurine alongside a balanced electrolyte profile and black pepper extract (piperine) to support your overall nutritional strategy.

It provides key ingredients that contribute to normal physiological function:

  • L-Taurine (4000 mg) — a naturally occurring amino acid involved in metabolic processes, with levels building over repeated intake.
  • Black pepper extract (providing 4.75 mg piperine) — included as part of the overall formulation.
  • Balanced electrolytes (potassium, calcium, magnesium, sodium) — which contribute to:
    • normal electrolyte balance (magnesium)
    • normal muscle function (potassium and calcium)
    • normal neurotransmission (calcium)

This synergistic, patent-pending blend works in harmony with truefuels electrolytes, which replace electrolytes lost during fluid intake, to support the nutritional foundations your body relies on to maintain physiological equilibrium when conditions demand resilience.

The result: targeted nutrition that strengthens the foundation — so you stay in control from the core outward.

truefuels cooling system™

Electrolytes are essential for maintaining normal fluid balance and physiological function during activity. When you increase water intake to support hydration, you can lose additional electrolytes through sweat, truefuels electrolytes help replace those losses to sustain ionic balance.

CoreCtrl is formulated to complement this hydration + electrolyte strategy, providing targeted nutritional support as part of your overall approach when heat and intensity increase.

Why CoreCtrl exists

Heat stress remains one of the most underestimated constraints in endurance sport. Athletes train power, we train fuelling, yet few deliberately support the body’s cooling capacity.

CoreCtrl exists to help athletes maintain physiological control when heat threatens to take it away. It supports the systems that regulate body temperature under stress, so heat becomes a condition you train and perform in, and not a limit you hit.

Alistair Brownlee, 2× Olympic Gold Medallist: "It was 2010, World Triathlon Series in London. It was warm and humid, and the pressure was on. Halfway through the run I locked onto Javier Gómez. 500 metres to go, just us and I started to think about when to start my sprint for the line. Then nothing. Blackout. I woke in hospital with ice packs and IVs. Core temperature had spiked above 41 °C. That day taught me how fast overheating can steal control. Since then I’ve been determined to help other people overcome the same problems. That’s where CoreCtrl comes in."

How to use

Take 1 serving daily for 8 days leading up to heat-exposed training blocks, races, or high-intensity sessions. Mix with 500 ml cold water. Consume 30–60 minutes before exercise. Test tolerance during non-critical training before using in competition. Always customise hydration and electrolyte intake to your individual sweat rate, environmental conditions, and workload.

Important: CoreCtrl is a food supplement and is not a substitute for hydration strategy, carbohydrate fuelling, pacing, heat acclimation, or evidence-based training practices. Use only as part of a varied, balanced diet and healthy lifestyle.

Science & Research Context

CoreCtrl is informed by emerging research into nutritional support during exercise in challenging conditions. Below is a summary of key studies. These studies examined taurine supplementation in controlled laboratory settings; findings are specific to their protocols and do not represent guaranteed effects for any supplement or individual. Individual responses vary.

Taurine supplementation and physiological responses in heat Peel JS et al. (2024). European Journal of Applied Physiology. DOI: 10.1007/s00421-024-05478-3

Relevant finding: In this study, participants supplemented with taurine (50 mg/kg body mass per day for 8 days) during low-intensity walking in a hot, humid environment (37.5 °C, fixed heat production ~200 W/m²). The research observed changes in sweat responses and heat balance parameters during controlled exercise.

Acute taurine intake and exercise performance in heat Page LK et al. (2019). European Journal of Sport Science. DOI: 10.1080/17461391.2019.1578417

Relevant finding: This study examined the effects of a single acute dose of taurine (50 mg/kg body mass, consumed 2 hours prior) on time to exhaustion and selected physiological markers during cycling exercise in the heat (35 °C, 40% relative humidity).

Dose-response effects of taurine on endurance performance in heat Li J, et al. (2025). Frontiers in Nutrition. DOI: 10.3389/fnut.2025.1632131

Relevant finding: This study investigated different acute doses of taurine (1 g, 4 g, 6 g) on graded cycling performance and physiological responses under hot and humid conditions (35 °C, 65% relative humidity). The researchers observed dose-dependent changes in endurance time and selected physiological parameters.

Review of taurine and heat tolerance Naddafha M, et al. (2026). Nutrients. DOI: 10.3390/nu18040592

Relevant finding: This narrative review synthesises evidence from human trials on taurine supplementation during exercise in hot environments, including potential interactions with hydration, cooling strategies, and other thermoregulatory factors.

Taurine distribution in human skeletal muscle Tallon MJ, et al. (2007). Biogerontology.

Relevant finding: Taurine is one of the most abundant free amino acids in human skeletal muscle. It is preferentially concentrated in Type I (slow-twitch, oxidative/endurance) muscle fibres compared to Type II fibres. Taurine content in muscle can change in response to exercise, with mobilisation and loss observed during both sprint and endurance-type activity.

General nutritional context

CoreCtrl includes magnesium, which contributes to normal electrolyte balance.* Potassium and calcium contribute to normal muscle function. Calcium contributes to normal neurotransmission. Water contributes to the maintenance of normal regulation of the body's temperature. Ensure at least 2.0 L of water from all sources is consumed per day to optimise these benefits.**

*Authorised claim: Magnesium contributes to normal electrolyte balance.
**Authorised claims: Potassium contributes to normal muscle function; Calcium contributes to normal muscle function and normal neurotransmission; Water contributes to the maintenance of normal regulation of the body's temperature (when ≥2.0 L/day from all sources).

Important note: These studies provide background on taurine in exercise physiology. CoreCtrl is a dietary supplement and is not intended to replicate study outcomes. Food supplements should not be used as a substitute for a varied diet and healthy lifestyle. Consult a healthcare professional before use.

Regulatory Disclaimer: These statements have not been evaluated by the Food Standards Agency (UK), Food Standards Scotland, or the European Food Safety Authority (EFSA). This product is not intended to diagnose, treat, cure, or prevent any disease. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Keep out of reach of children. Consult a healthcare professional before use if you are pregnant, breastfeeding, have a medical condition, or are taking any medication.