As seen in
Instant Cortisol Test
See your morning cortisol
After you wake up, cortisol naturally rises, helping you feel awake and alert.
Understand your evenings
Cortisol should drop before bed. If it doesn’t, disrupted sleep can follow.
Map your full cortisol rhythm
See how your morning and evening levels work together to shape your sleep.
Results in 20 minutes | Saliva-based | 97% accuracy*
*compared to methods used a medical setting
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.
View results in the Eli app
Your morning and evening levels can reveal whether your cortisol rhythm is in sync, or working against your sleep.
Your cortisol rhythm shapes your sleep cycle.
Morning
Cortisol peaks after waking, shaping your energy and alertness as your day begins.
Evening
It should drop before bedtime—your wind-down signal. If it stays elevated, falling and staying asleep gets harder.
Your full rhythm
Your cortisol pattern is linked to your energy, alertness, and sleep. Track it to see if it’s working against you at night.
Knowing how my cortisol levels have been spiking at night has helped me adjust my lifestyle and make changes to drop my levels at night (like they should be) and help me loose the weight I've been battling to loose.
Adam A., Verified Buyer
Eli's cortisol tests are a game changer. They are super easy to use, and the UI in the app is well designed. It's helping me figure out what's triggering cortisol spikes and leading to me getting better sleep!
Jason B., Verified Buyer
Eli’s cortisol test helps you identify in real time whether cortisol levels may be contributing to your symptoms. It removes the guesswork by showing whether your cortisol is too high or too low, allowing for more targeted action without having to wait weeks for traditional saliva results.
Mike B., Verified Buyer
Expert-led, from research to results.
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.
Fady Hannah-Shmouni, MD
Endocrinologist and geneticist at the University of British Columbia.
Focus: Longevity healthcare.
4.7
What Eli users are saying
PRODUCT GUIDE
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CORTISOL EXPLAINED
What your evening cortisol test results mean
Cortisol Explained
What your morning cortisol test results mean