Discover how much you really lose in sweat, and salt
You train, you hydrate... but probably at random. Sweat and sodium loss can vary up to 15 times between seemingly similar individuals. Without knowing it, you may be drinking too much, not enough, or at the wrong time.
In 45 minutes, get a precise answer and a hydration plan that is unique to you.
How does it work?
- You contact us by email - Paris Étoile or Nice boutique, depending on your preference
- We schedule a time slot together
- On the day, sit comfortably for 45 minutes: we discuss your training and competitions while the test takes place
- You leave with your personalized hydration plan and a free kit
No blood tests, no need to wear yourself out on a treadmill, no waiting for laboratory results. The test is simple, painless, and extremely accurate.
Did you know?
Quite incredibly: the amount of sweat and sodium lost can vary up to 15 times between seemingly similar individuals.
Each person loses a different amount of sodium in their sweat, ranging from 200 mg to 2,000 mg per liter, which is largely determined by genetics.
This means that a one-size-fits-all approach does not work when it comes to hydration. We offer a personalized hydration plan and a mix of products that meet your individual needs.
What we measure, and why it matters
It gives us a precise indication of how much sodium—the key electrolyte lost in sweat—you lose during every effort. In most cases, a single test in your lifetime is enough to understand an essential part of the hydration equation.
We combine the results with the context provided during the test to create a hydration strategy that is unique to you: when, what, and how much to drink before, during, and after training and competitions, so you are well-equipped to meet your goals.
After the results
We also recommend the most effective electrolyte drinks for your profile. Precision has developed electrolyte tablets with different dosages, as commercially available products are not suitable for most profiles. Precision's most powerful product, PH 1500, contains up to 3.5 times more electrolytes than other brands on the market.
We have exclusive access to this fully patented testing technology to analyze athletes' sweat. It has a long, credible history in medicine, used notably as a diagnostic tool for certain forms of cystic fibrosis.
The price — €140
- ✔ Sweat test (45 min)
- ✔ Personalized hydration plan
- ✔ Free hydration kit
Where to get your test done?
Paris Étoile → schedule by email at lab@triathlonstore.fr
Nice → schedule by email at nice@triathlonstore.fr
Specify your name and availability, and we will get back to you shortly to set the slot.
Want to give it as a gift?
Share the experience: give the sweat test as a gift card, and they just need to book their slot.
Still hesitating?
Is it painful?
No, no needles, no physical exertion required.
How long does it take?
About 45 minutes, sitting comfortably.
I'm not a serious athlete, is this for me too?
Yes — genetic variation in sodium affects everyone, from beginners to experienced athletes.
How many times should it be repeated?
In most cases, a single test is sufficient for an entire athletic career.
What is the difference compared to a blood test or laboratory test?
No blood draws, no physical exertion, no waiting: the result is available immediately, during the appointment.
