• Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • 1/8
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off
  • Progesterone Discovery Pack, 50% off

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

Have an early access code? Enter it below to unlock exclusive access to the Hormometer™.

Don’t have a code? Apply now for early access.

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.

PERIMENOPAUSE

Navigating the transition? Start with real data.

As ovulation becomes irregular, progesterone is the first to drop—and the hardest to spot. Real-time tracking helps connect symptoms to hormonal changes, guide treatment decisions, and support sleep, mood, and long-term health.

Ovulation Window

Confirm if—and when—ovulation actually happened

Tracking progesterone confirms whether and when ovulation has occurred, helping you understand your cycle more accurately, detect missed ovulation, and take action with confidence.

Cycle syncing

Sync with your real cycle—not a prediction

Real-time progesterone tracking helps you know exactly where you are in your cycle—so you can adjust your workouts, nutrition, and routines based on your body’s real signals, not just a calendar estimate.

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.”

2025

Best of Innovation

Digital Health

2025

Rising Star

Digital Health

2025

Red Dot Awards

Design Concept

2025

Femtech World Awards

Brain & Mental health

2025

Wearable Digital health

Best in show

AI-POWERED APP

Eli App: AI-powered intelligence

Find your normal

Measure throughout the early stages of your cycle to understand your baseline progesterone levels.

iOS only. Android coming soon.

Instant snapshot

See how today's levels compare to your typical baseline with one simple 0-100 score.

Catch the shift

Confirm ovulation has occurred - useful for fertility and perimenopause assessment. Get to the root of your ovulatory patterns.

Log & reflect

Link feelings, habits or symptoms to every result—fueling deeper insight.

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.

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.

Eli Hormometer

At-home Blood Kit

Urine Panel (PdG)

Cycle Tracking Apps

Wearables (BBT)

Needle-free

Real-time (>20m)

20 minutes

4-7 days

Requires 3+ days of peak

Prediction based only

Detects after ovulation

Tracks daily rhythm

AM + PM

Snapshot

Retrospective

Based on past cycles

After-the-fact

Cost per result

Low

Medium

Medium

Low

High

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.

1

Scan it with your phone via the Eli App.

2

Check your cortisol level in the app and take actions based on your personalized insights

3

Monthly kit deliveries and unlimited app access

FAQ