The Hormometer is the most novel hormone monitoring product on the DTC market — continuous saliva-based tracking is genuinely different from a point-in-time blood draw. For anyone trying to understand hormone fluctuations across a cycle, it offers data that no other at-home product currently provides. The cost is real and the subscription model requires commitment, but for the right person it's worth it.
The Hormometer tracks four hormones via daily saliva samples: estrogen (E3G), progesterone (PdG), luteinizing hormone (LH), and cortisol. Unlike a blood panel, which gives you a single data point in time, the Hormometer builds a longitudinal picture across your cycle — showing you how these hormones rise, peak, and fall day by day.
Cortisol tracking is a meaningful addition — most cycle-focused tests skip it entirely. Seeing cortisol alongside reproductive hormones gives context that a standalone hormone panel can't provide.
Saliva-based hormone testing measures metabolites — the byproducts of hormones as they're processed by the body — rather than the hormones directly. E3G (estrone-3-glucuronide) is the estrogen metabolite; PdG (pregnanediol glucuronide) is the progesterone metabolite. Both are well-validated markers used in clinical research and fertility monitoring.
The continuous measurement approach matters because reproductive hormones fluctuate significantly across a cycle. A single blood draw tells you where you are that day — it doesn't tell you what your peak looks like, whether your luteal phase progesterone is sustained, or how your cortisol pattern interacts with your cycle.
The Hormometer's value is in the trend, not any single day's reading. Use it for at least one full cycle before drawing conclusions. Look for: whether your LH surge is detectable and how sharp it is; whether your PdG rises and stays elevated in the luteal phase (sustained elevation is the signal of adequate progesterone); and whether your cortisol spikes correlate with specific days or events.
If you're tracking for fertility, the LH and E3G data together give you a clearer ovulation window than LH alone. If you're tracking for general hormone health, the luteal phase PdG pattern is the number to watch — a short or low plateau is worth discussing with a clinician.
Do not use Hormometer results as a standalone clinical reference. Bring the trend data to your doctor or practitioner as supporting context — it's most useful alongside, not instead of, a blood panel.
| Product | Sample type | Hormones | Continuous? | Price |
|---|---|---|---|---|
| Eli Health Hormometer | Saliva | E3G, PdG, LH, Cortisol | Yes | $$$ |
| DUTCH Test | Urine | Full hormone panel | No (one-time) | $$$ |
| Everlywell Hormone Test | Blood spot | E2, P4, T, DHEA-S, FSH | No | $$ |
| Function Health | Blood | Full panel incl. thyroid | No (2x/year) | $$$$ |
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