Hydration Testing for Athletes

MX3 Hydration Testing System

Put the Power of a LAB in Your Hands

For the first time ever, you can actually measure hydration levels simply and reliably. The MX3 LAB Pro is an easy-to-use, portable hydration testing platform that empowers coaches and trainers to help athletes optimize performance and reduce the risk of injury.

You know how important proper hydration is to athletic performance and health. But making accurate hydration assessments is not quick or easy. MX3 provides the immediate, accurate, and actionable data that coaches and trainers need to offer added value to their athletes.

MX3’s hydration test can tell an athlete how much to drink, and our sweat sodium test informs what type of rehydration fuel is best. This powerful combination offers a deeper look into an athlete’s overall hydration status, allowing customized rehydration protocols and better performance.

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Immediate Hydration Results

Immediate Actionable Results

MX3 eliminates invasive and time-consuming tests. No other device can measure the body’s current hydration status immediately and accurately in a portable setting. Frequent testing takes the guesswork out of the process and allows trainers to customize rehydration strategies for their individual athletes.

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Your Competitive Edge

While the science behind the MX3 LAB Pro is revolutionary, putting it into practice couldn’t be easier. Choose between disposable test strips sampling an athlete’s saliva to measure hydration status, or sweat tests to measure electrolyte lossor use both for a complete picture.

For more information about the technology that makes the MX3 work, visit our Science page.

Learn more about the benefits of using MX3 for hydration testing in the field.

To discuss profitable resale options for personal trainers and gym owners, please email MX3 for more details and wholesale pricing.

Sports Performance Professionals

“With MX3 we were able to test athletes simply, easily and regularly with instant results. This is the first device that gives us coaches the opportunity to monitor any changes of adaptation within our athletes, whilst training in both warm and cool climates. MX3 is a must-have for any coach or sports performance professional.”
- Ollie Allan, director of Tri-Alliance, one of the largest triathlon training teams in Australia.



Hydration Testing System

The MX3 Hydration Testing System (HTS) uses a single device, the MX3 LAB, to run two different tests in real-time. The HTS not only informs a user how much to drink but what to drink, optimally replacing the correct electrolytes lost during exercise.

Saliva Testing Strip

Hydration Test

A simple saliva test shows any fluid deficit to determine hydration levels and can be compared to an athlete’s Optimal Hydration Zone (OHZ).


Hydrated < 65 mOsm
Mildly Dehydrated 65-100 mOsm
Moderately Dehydrated 100-150 mOsm
Severely Dehydrated > 150 mOsm

Sweat Test Strip

Sweat Test

A sweat sodium test tells an athlete how much sodium one loses in sweat, which is the critical datapoint for determining optimal electrolyte replacement and rehydration strategies.


Low < 750 mg/L
Moderate 750-1100 mg/L
High 1100-1450 mg/L
Very High > 1450 mg/L

Use the MX3 LAB anytime, anywhere. Simply take a quick saliva or sweat sample on the field or in the locker room.


MX3 is scientifically proven to measure biomarkers from saliva as accurately as a laboratory osmometer.


Your hydration level is recorded within seconds of taking a saliva measurement, and results immediately upload to your app.


The LAB can be used over and over by one person or entire teams. Just replace the disposable test strip after each measurement.


Test strips load easily into the LAB, and saliva measurements are made by simply placing the strip on the tip of the tongue.


The LAB can be used with or without Bluetooth or Internet access. Measurements can be taken anytime for immediate readings, then stored for later upload.

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Ready to start testing hydration? Want to learn more about our science, our products or our company? Sign up now to keep in touch.

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