As seen in
Instant Cortisol Test
Explain the symptoms you feel
See how hormonal shifts affect your energy, sleep, and mood.
Identify your personal triggers
Learn how caffeine, poor sleep, and stress move your curve.
Track what’s actually working
Compare results before and after to confirm what works.
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.
See your body’s response
Your cortisol levels, your daily patterns, and the habits shaping how you feel during hormonal transitions.
Hormonal shifts change how your cortisol curve responds.


Morning
Cortisol peaks after waking to boost energy. If that peak flattens, mornings can feel like wading through mud.

Evening
By night, cortisol should drop. If it doesn’t, you stay awake, feeling tired, wired, and unable to sleep.

The curve tells the real story
A flattened or shifted curve often shows up as fatigue, mood changes, or broken sleep. Eli shows you the full shape of your cortisol curve.

I was curious to check my cortisol levels knowing how much it affects females in their 30s. Glad they're in the range. Eli strips are easy to use, and the app sends you reminders so you don't forget to do the test on time.
Nadia D., Verified Buyer
I was able to monitor my cortisol and see what affects it. For example overtime, I realized that my mindfulness routine was bringing my cortisol back into range. I also saw how stress or sickness affects my cortisol cycle.
Maya, Verified Buyer
I am so thankful for these at-home cortisol tests. They have made it so easy for me to bring real-time results to my doctor.
Mary, 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

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