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Instant Cortisol Test

Track how your cortisol impacts your sleep, mood, weight, energy, and more.

Simple saliva sample—no needles

97% test accuracy*

Results on your phone in 20 minutes

Cortisol 3-Month Supply
Instant Cortisol Tests: Deliver every 3 months subscription

*Benchmarked against laboratory method references. Hormometer™ is a wellness device and is not intended to diagnose, treat, or manage any medical condition.

Why cortisol matters.

Cortisol is the stress hormone released by your adrenal glands. It impacts your body each day by regulating your stress response, supporting sleep + wake cues, and managing blood sugar and metabolism.

Your cortisol rhythm should peak in the morning to mobilize energy, and fall by night to help your body prepare for sleep.

Cortisol myths

High cortisol is always bad.

False

Cortisol should be high in the morning: it peaks to help you wake up and feel alert. Cortisol that remains high into the afternoon and evening is worth watching.

Cortisol only rises under stress.

False

Regardless of stress, cortisol releases on a regular schedule, known as your cortisol diurnal rhythm.

Measuring cortisol once is enough.

False

One reading shows one moment in time. Tracking regularly allows you to see how your full daily rhythm moves.

Your rhythm impacts
your health every day.

Optimal rhythm

What happens

Sharp morning peak, gradual decline throughout the day.

what you might notice

alert
steady energy
easy wind-down

Elevated rhythm

What happens

Normal morning peak that remains elevated throughout the day.

what you might notice

wired at night
on edge
restless sleep

Flat rhythm

What happens

Muted morning peak that doesn’t rise throughout the day.

what you might notice

low energy
afternoon crashes
can’t focus

Inverted rhythm

What happens

Blunted morning response that climbs until it peaks at night.

what you might notice

groggy mornings
tired + wired
switched on
Testimonials

How Eli helps users navigate their health.

Meaghan Praznik

Ironman competitor

“Easy to use tests and I exported the data and shared with my doctor as part of my health care plan.”

Lee L.

Verified customer

“Thanks to Eli, I gained a better understanding of my cortisol and what may be contributing to spikes. The valuable insights helped me have a more informed conversation with my doctor. Having access to this information has given me greater confidence in managing my health.”

Gabriella

Verified customer

Awards

The most awarded cortisol test.

CES 2025

Best of innovation

Fast Company

Best Health + Wellness Design 2025

Canyon Ranch

Wellness Gold List 2026

Shape

Best Cortisol Testing App

HLTH 2025

Best of innovation

Wareable 2025

Wearable Digital Health

Digital Health 2025

Digital Health Awards

How It Works

Skip the wait: results in minutes.

step 01

Collect your saliva.

Saliva contains dozens of unbound hormones including cortisol.

step 02

Scan in your test.

The Eli app uses AI computer vision to analyze your test.

step 03

Visualize your data.

See what moves your cortisol rhythm and get personalized tips on how to improve it.

Your cortisol rhythm, explained.

Stress Status

Receive a personalized read on your cortisol rhythm across five states.

Rhythm Review

A deep dive on how your cortisol rhythm behaves and impacts your energy, sleep, and recovery.

Tag Trends

See what affects your cortisol rhythm with labels: exercise, travel, poor sleep, emotional stress, alcohol, etc.

Shareable PDF

Download and share your cortisol results with your practitioner at anytime.

The Science

The Eli difference.

Dr. Fady Hannah-Shmouni, MD, DABIM, AHSCP, FRCPC

Eli Health Medical Director: leader in endocrinology and longevity medicine for 15 years.

Internal Medicine, Endocrinology & Genetics · Longevity Docs member

University of British Columbia
Yale
Geneva College of Longevity Science

Test at your own pace.

3 months
Most Popular
$276.11 $413

24 tests $11.50 per test

Enough to map your baseline rhythm and test one change

Covers one season or one training block

Free shipping every 3 months

Pause, skip, or cancel anytime

Choose this if you're new to tracking your cortisol.

6 months
$484.23 $553

48 tests $10.08 per test — 12% less

Twice the data, at the lowest per-test price

Long enough to see seasonal shifts, multiple training blocks and several cycles

Free shipping every 6 months

Pause, skip, or cancel anytime

Choose this if you're ready to track your cortisol regularly.

We stand behind every test.

Test replacement guarantee. If your test doesn't produce a readable result, we'll replace it.

Free onboarding call with an Eli team member to read your first rhythm.

Pause, adjust, or cancel at anytime. Complete control of your plan.

Proudly built in North America.

10,000+

Hormone-curious users tracking their cortisol with Eli.

250,000+

Tests manufactured in-house in North America.

research partners
MIT Logo
High Point University Logo
McGill Univeristy Logo
Providence College logo

Eli helps you identify the pattern.

With labs, not instead of:

Hormometer™ is a wellness device that tracks your cortisol rhythm. It doesn’t replace clinical testing ordered by your physician, but regular readings from Eli can complement your labs.

Free cortisol, not serum

Eli measures free cortisol, the active portion available to your tissues. Serum tests measure bound cortisol in blood.

Understand how cortisol impacts your:

Hormometer™ is a wellness device built to show you your cortisol rhythm—not to replace clinical lab testing. If you're managing a condition, Eli can sit alongside testing ordered by your physician.

Performance

SLEEP

Metabolic health

Hormonal changes

Recovery

Focus + energy

FAQ

4.7

What Eli users are saying

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