You qualified.
One step left.
Help answer one question: does a hydration supplement actually rehydrate you faster than water after exercise? Your WHOOP does the heavy lifting.
Scan to jump straight
to the study
Open your phone camera and point it at the code. The Reputable app will open the study with code BAKW pre-filled.
Three steps to join.
- 1
Download the Reputable app
Available on iPhone and Android. Free, takes under a minute.
- 2
Create your account
Use the same email you signed up with on the form — that's how we'll match you.
- You're here3
Enter code & connect WHOOP
The app will walk you through the WHOOP connection. That's it — you're in.
A clear picture before you commit.
Test a hydration supplement
A study supply shipped to your door, so you can compare it against plain water after exercise.
Day-to-day
Wear your WHOOP as usual, exercise as you normally would, and complete a brief daily check-in in the app.
Personal wearable report
See how your recovery, sleep, and readiness change across the study — yours to keep.
Measuring how hydration shapes recovery — in real life, on real wearables.
We're studying whether a hydration supplement actually rehydrates you faster than plain water after exercise — using day-to-day WHOOP data from people like you. No lab visits, no extra hardware, just your normal routine, captured carefully.
You're a fit if…
You already passed the screener — this is just so you know what we checked for.
- 18 or older
- Own a WHOOP strap with an active subscription
- At least 30 days of baseline wearable data
- Based in the United States, fluent in English
- Exercise regularly and can commit to daily check-ins
Good things to know.
Hit a snag?
Write us at research@reputable.health. A real person will get you sorted.