Instant Progesterone Test
Know your cortisol levels in 20 minutes.
No lab. No wait.
Includes test kits + AI-powered app
94 % accuracy + third-party validated
iOS compatible (Android coming soon)
Cortisol Test
from $32/mo
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Your cycle’s secret messenger, decoded.
Progesterone surges after ovulation—it’s your body’s way of confirming that an egg was released. Eli captures that rise in real time, helping you better understand your fertile window, cycle health, and more.

Alicia Robbins, MD
Board-certified OBGYN and Certified Menopause Practitioner. Focus: Midlife transitions healthcare.
"With Eli, women can now regularly track progesterone—a once costly and invasive process—unlocking powerful insights into their cycles, fertility, and hormonal health.”



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Best of Innovation
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Digital Health

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2025
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Best in show


AI-POWERED APP
Eli App: AI-powered intelligence
Progesterone, the ovulation confirmer
Understanding progesterone: the signal of ovulation
Regular tracking shows whether and when you ovulate, so you can spot hormonal issues early—not just react to symptoms later.
It’s not just about fertility. Progesterone anchors your inner balance.
Think of progesterone as your body’s second-half stabilizer. It rises after ovulation and quietly supports vital systems throughout your cycle. It helps regulate:
- Sleep quality
- Emotional resilience
- Body temperature
- Menstrual regularity
- Cognitive clarity
- Bone and metabolic health
This hormone doesn’t just confirm ovulation—it sets the tone for what follows.

What knocks progesterone out of sync?
Short luteal phases, anovulatory cycles, and stress-related disruptions can prevent a healthy progesterone rise. If your levels stay low in the luteal phase, you might notice:
- Perimenopause
- Irregular periods
- Trouble sleeping
- Mood swings or anxiety
- Premenstrual symptoms
- Temperature shifts
- Fertility challenges
What Progesterone can say about your menstrual health ↓
In range peak |
Low peak |
No peak |
---|---|---|
Clear progesterone rise confirms ovulation. |
Ovulation happened, but stress, age, or luteal issues led to a weak progesterone response. |
No post-ovulation rise—often due to anovulatory cycles triggered by stress, hormonal imbalance, or perimenopause. |
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The only way to know if—and when—you’re ovulating is to track progesterone dynamically. Most tests miss the window. Eli doesn’t.
Skip the bloodwork.
Test progesterone instantly.
HormometerTM is the first at-home hormone testing system that captures cortisol fluctuations in real-time. No mail-away blood draws or 24-hour urine tests make this level of data accessible.
Cycle tracking apps estimate ovulation based on past patterns. Eli shows if and when you actually ovulate—based on real hormone data.
How it works
Never miss the window, easy testing anytime anywhere
Easy as 1, 2, 3

Collect your saliva (easy, painless, anytime, anywhere) with the Eli test.

Scan it with your phone via the Eli App.

Check your cortisol level in the app and take actions based on your personalized insights
Monthly kit deliveries and unlimited app access