Hormone Lab
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Cortisol isn't a number. It's a rhythm.
Your cortisol only makes sense as a rhythm. That's why we built a protocol around it.
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Your cortisol has a rhythm. Here's what that actually means.
Your cortisol follows a daily rhythm that impacts your sleep, energy, mood, metabolism, and more. Tracking your cortisol rhythm over time helps you identify changes in how your body manages stress across each day.
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Meet Stress Status: a new feature to see how your cortisol is actually responding
The Eli app now classifies your cortisol patterns into a Stress Status—so you can finally answer the question you've been asking: "Am I actually stressed?"
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Hormone Insights: your tiles unlock the full story
A redesigned app experience that turns your cortisol data into personalized, actionable insights — from daily actions to tag trends and notable moments.
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Understanding Cortisol
Your master stress hormone controls energy, sleep, and recovery—when the rhythm breaks, everything feels harder.
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Understanding Your Score
Your score (0-100) is a daily pattern metric that shows how well your entire cortisol rhythm aligns with a healthy, optimal pattern for your time of day.
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The 30-Minute Window
The 30-minute window before testing—no food, drinks (except water), brushing teeth, or smoking—ensures clean saliva and captures your complete cortisol response for accurate, reliable results.
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The Testing Ritual
Real-time hormone insights in 3 simple steps: saturate the pad for 60 seconds, pull until the blue dot shows, and wait 20 minutes for your results
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Understanding Different Diurnal Rhythms
Your cortisol diurnal rhythm is a powerful pattern that governs your energy, sleep, and stress response, which shift and adapt to your unique lifestyle.
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When to Test Cortisol
The right timing unlocks insight, as testing strategically is essential to understanding what shapes your personal cortisol pattern.
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Troubleshooting Your Test
Most test issues are simple fixes—follow the ritual, saturate fully, pull until the blue dot shows, and your tests will work consistently.
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Health Tags: Why Context Beats Numbers
Health tags transform raw biological data into meaningful, actionable personal insights by capturing the context and lifestyle factors surrounding each measurement.
