Track your rhythm, and how it changes.
Cortisol changes every day.
Eli gives a 360° view of what’s impacting yours.
As seen in
One result is not an answer.
A morning cortisol test shows how your day started—but it doesn’t show whether you crashed at noon, spiked at 3pm, or stayed wired at night.
Mapping your full cortisol rhythm shows how your stress hormone actually moves during the day, not just a random snapshot.
3 reasons to track your cortisol regularly.
With your first pack, you get 8 tests, 4 daily rhythms, and a Stress Status that names your pattern. This your starting point for how your rhythm behaves today.
What one pack can't show you is what happens next: if you adjust your sleep, shift your training, or cut the afternoon coffee, does your rhythm actually respond? A single pack can't tell you. Testing consistently can.
REASON 01
See your changes take hold.
You cut caffeine, moved training earlier, and fixed your sleep. One "after" reading can't confirm as much as testing month over month, which shows if your cortisol settling into a better pattern, drifting backwards, or holding steady. That's the difference between guessing if a change helped and watching it happen.
REASON 02
Track your rhythm shifts.
Your first pack captures your rhythm accurately, but this week's stress won't be the same as next month's. A hard training block, a demanding quarter, or a change of season can all shift your cortisol. A first pack is how you meet your rhythm; a membership is how you keep up with it.
REASON 03
Save more by staying consistent.
Consistency doesn't just give you more data, it also makes testing more affordable. A single pack of cortisol tests works out to $12 a test, but with a membership, it drops to $7-$8 per test.
A membership is more than a refill.
Onboarding call with the Eli team
to interpret your first rhythms
Exclusive member pricing
that improves with every reorder
Continuous supply
delivered directly to your doorstep
Free shipping
on every order
The more you track, the more you learn.
| Membership | Discovery pack | |
|---|---|---|
| Map your current cortisol rhythm | ||
| See if your changes are working | ||
| Watch your rhythm change over time | ||
| Onboarding call with Eli team | ||
| Lower pricing with each reorder and free shipping |
The Discovery Pack reveals your rhythm. The Eli membership helps you see and change it.
Because cortisol levels can change quickly during periods of acute stress, it's essential to have real time information to determine the appropriate intervention.
Mike B., Verified Buyer
Eli gave me a better understanding of how my cortisol levels change throughout the day, which helped me figure out the right way to manage my stress.
George, Verified Buyer
Being able to develop an awareness from your own data equips you to ask better question and decide what's relevant to try from a lifestyle management perspective.
Liz F., Verified Buyer
Expert-led, from research to results.
Fady Hannah-Shmouni, MD
Endocrinologist and geneticist at the University of British Columbia.
Focus: Longevity healthcare.
Alicia Robbins, MD
Board-certified OBGYN and Certified Menopause Practitioner.
Focus: Midlife transitions healthcare.
Olivia Lesslar, MD
Physician and lecturer working across brain health, trauma, and recovery.
Focus: Integrative longevity healthcare.
Instant Cortisol Test
Measures free cortisol to reveal the impact of mental, physical, lifestyle, and environmental stress on your body.
20 minutes
Saliva
Third-party tested
Free shipping always with your subscription
Pause or cancel anytime
Free expert onboarding call with your subscription
Thousands have tried Eli. Here's what they're saying.
Eli made the list
Best Health + Wellness Desing of 2025
“This is a game-changer, cortisol is the most illusive hormone. A reliable home kit is a life-saver for anyone struggling.”
Roman
“When people actually see the data, it's clear feedback that enables them to prioritize different actions.”
Stress is measurable, I track mine with Eli.
Meaghan
“The advantage of this [Eli's] type of test is that it doesn't require another party and can turn around results more quickly.”
“ I was able to track my typical cortisol levels and am now experimenting to see what I can do to improve my levels. I will be ordering an additional pack soon. ”
George B
“I finally understand how my body responds to stress throughout the day. I can see patterns I never had access to before.”
Maya
4.7
Customer reviews reflect individual experiences with wellness tracking. The Hormometer™ is not intended to diagnose, treat, or screen for any medical condition.
PRODUCT GUIDE
Cortisol Hormometer™ 101: The Ultimate Guide
CORTISOL EXPLAINED
Why your cortisol reading might look different than expected
PRODUCT GUIDE
When to Test Cortisol