The DTC Health Testing Resource

Find the right health test.
Before you buy.

The direct-to-consumer (DTC) health testing industry has grown from a few blood panels to hundreds of products: hormone kits, gut microbiome tests, full biomarker memberships, wearables with integrated labs.

Master Your Metrics puts all these products in one place where you can learn, compare, and decide.

Version history
May 24, 2025Initial publish

Browse by category

What are you trying to test?

The DTC testing market covers a wide range of health areas. Start with what matters most to you.

6 reviews

Hormone Testing

Estrogen, progesterone, cortisol, thyroid. Saliva, blood, and urine-based options.

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4 reviews

Gut Health

Microbiome analysis, digestive function, and stool-based testing kits.

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8 reviews

Blood Biomarkers

Full panel memberships, à la carte blood draws, and metabolic markers.

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3 reviews

Biomarker Memberships

Subscription platforms that track and trend your numbers over time.

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Recently added

Every test is reviewed independently. No press kits, no vendor-supplied results.

Hormone Testing

Eli Health Hormometer™

A saliva-based hormone monitor tracking estrogen, progesterone, LH, and cortisol continuously. We ran it alongside a blood panel to see how the two compare.

Oral Microbiome

Bristle Health

The most clinically grounded oral microbiome test on the DTC market — maps your bacterial profile to cavity risk, gum disease, and systemic inflammation.

Blood Biomarkers

Function Health vs. WHOOP Advanced Labs

Two major biomarker membership platforms tested simultaneously — same person, same week. Full side-by-side on panels, pricing, and results experience.

The metrics that matter, in your inbox.

New reviews, comparison breakdowns, and plain-language explainers on what DTC health testing can — and can't — tell you.