As seen in

4.7

Instant Cortisol Test

See how jet lag really affects you

Track how your cortisol rhythm changes when crossing time zones.

Know your real recovery time

See how many days it takes for your rhythm to reset.

Create a travel game plan

Understand which changes help your rhythm adjust during travel.

Free shipping always with your subscription

Pause or cancel anytime

Free expert onboarding call with your subscription

FSA/HSA Eligible with Burst Learn more

FSA/HSA eligible with Burst

This product may be eligible for purchase with your FSA/HSA funds. Get up to 100% reimbursed using your pre-tax dollars with Burst.

  1. 1

    Purchase with your regular payment method

    Use your credit card, debit card, or other payment method at checkout.

  2. 2

    Get a Letter of Medical Necessity

    After checkout, fill out a brief health questionnaire for our licensed providers to review.

  3. 3

    Receive automatic reimbursement

    If approved, Burst will automatically reimburse you from your FSA/HSA account.

Test anytime, anywhere

Collect your saliva

Hold the test in your mouth for 1 minute.

Scan with the Eli app

Your iPhone reads the developed test, 
no extra hardware needed.

See your rhythm in the app

Track your cortisol over time and learn what helps you realign after travel.

How travel impacts your cortisol rhythm and recovery.

Morning

Your morning cortisol peak can show up hours late, leaving you sluggish and tired.

Evening

Cortisol’s evening drop comes too late, leaving you feeling wired and on edge.

Your full rhythm

Your real recovery window is how long your peak takes to realign. Tracking helps you know when you’ve reset.

5.0

These really helped me get an idea of my natural circadium rhythm. It was much more useful than going to my doctor who charged $400 for 1 test.

UltraGeek1111, Verified Buyer

5.0

Really helps with immediate feedback about cortisol trends in real time! Instead of waiting for 3-4 weeks for traditional test results I can access the data immediately.

Peter, Verified Buyer

5.0

Very simple, easy to use test. Helped me to determine if my late night wakings were due to cortisol spikes.

Mike C., Verified Buyer

Customer reviews reflect individual experiences with wellness tracking. Hormometer™ is not intended to diagnose, treat, or screen for any medical condition.

Expert-led, from research to results.

Alicia Robbins, MD

Board-certified OBGYN and Certified Menopause Practitioner.

Focus: Midlife transitions healthcare.

Fady Hannah-Shmouni, MD

Endocrinologist and geneticist at the University of British Columbia.

Focus: Longevity healthcare.

Olivia Lesslar, MD

Physician and lecturer working across brain health, trauma, and recovery.

Focus: Integrative longevity healthcare.

FAQ

4.7

What Eli users are saying

RESOURCES

Here’s what you need to know.

RESOURCES

Here’s what
you need to know.

CORTISOL EXPLAINED

Jet Lag & Cortisol: How to Realign Your Rhythm

PRODUCT GUIDE

Cortisol Hormometer™ 101: The Ultimate Guide

CORTISOL EXPLAINED

Why your cortisol reading might look different than expected