We have been fortunate to work with Ben Bergeron, CrossFit New England, and some of the world’s top CrossFit athletes. As these elite athletes look for every edge they can, we individually dial in their hydration and electrolytes so they can perform at their best, when it counts.

Our 2016 CrossFit stats:

2016 CrossFit Games

  • World’s Fittest Man & World’s Fittest Woman #SWEEP
  • Games: Sweat Tested 4 of the top 40 men, and 6 of the top 20 women

2016 East Coast Championships

  • Men’s & Women’s Champion #SWEEP
  • Sweat tested 10 of the 12 Athletes on the Team Podium
  • Sweat tested 3 of the 6 Athletes on the Individual Podium
  • Sweat tested 6 of the top 12 men, 9 of the top 20 women

Take a LEVELEN #SweatTest and
take your CrossFit to the next LEVEL.

CrossFit-Specific Sweat Testing Instructions

The International Leader in the Science of

Proper Fluid & Electrolyte Balance will ...

Improve Endurance
Increase Power
Eliminate Muscle Cramping
Prevent Salt Depletion & Hyponatremia
Minimize Exertional Heat Stroke

Stop the Hydration Guessing Game

Our Scientifically-based Athlete Sweat Test determines your specific hydration needs,
so you can finally stop the trial-and-error game when it comes to your hydration.



HEAT Sport Sciences, Inc. (HSS) is intensely focused on the unmet needs of the serious athlete.  All of our products and services are based on over a decade of research, and rigorously tested and validated at the highest levels of sport to maintain peak athlete performance and to address heat-related illnesses.
HSS is dedicated to developing proven performance-enhancement solutions that are healthy, all-natural & preferred by elite athletes. Our Athlete Sweat Test determines your unique hydration needs, and our LEVELEN™ Electrolyte products assure optimal performance through fluid & electrolyte balance.

We are the leaders in Hydration Sports Science.

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LEVELEN ™ Electrolyte Mix

LEVELEN™ Electrolyte Drink Mix is the only hydration and electrolyte solution that is formulated to an individual athlete’s specific needs.

LEVELEN™ is a sophisticated approach to electrolyte replenishment, backed by over 10 years of clinical research with professional & collegiate sports teams, and data on over 2,000 athletes.

Our patented system has been rigorously tested and validated at the Pro level to:

  • Prevent and treat fluid and electrolyte imbalances
  • Eliminate exercise-associated muscle cramping (EAMC)
  • Minimize heat-exhaustion and other heat-related illnesses
  • Prevent hyponatremia (EAH)
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