Estrone (E1)
The dominant estrogen after menopause, made largely in fat tissue.
Consider this test if:
- Tracking estrogen status through perimenopause or after menopause
- Investigating hormone-related symptoms when ovarian estradiol is low
- Assessing estrogen production in the context of high body fat
- Monitoring estrogen levels on hormone therapy
- Following up an abnormal estrogen result with a specific estrone measurement
- HSA/FSA eligible
- Typical results in 4-5 days · Reviewed by a real clinician
- Drawn at a CLIA/CAP-accredited lab near you ·
Pre-test considerations
No fasting required. If you take any estrogen-containing therapy or supplements, note the dose and timing, since they affect the result. In premenopausal women, estrogen levels shift across the menstrual cycle, so consistent cycle-day timing matters for comparison between tests.
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What this test is for
Estrone (E1) is one of the body's three main estrogens and becomes the primary circulating estrogen after menopause, when ovarian estradiol production falls. It is made mainly by converting androstenedione in peripheral tissues, especially fat, so estrone tends to run higher with greater body fat and obesity. Levels are checked to evaluate estrogen status across the menopausal transition, to investigate hormone-related symptoms, and to assess estrogen production when ovarian output is low. A rising estrone-to-estradiol ratio is one signal used to characterize menopausal status. For most fertility and cycle questions in premenopausal women, estradiol is the more informative estrogen.
This test measures estrone alone. The separate Estrogens panel reports estrone, estradiol, and a total estrogen calculation together, and the Estrogen Panel adds estriol, which is mainly relevant in pregnancy; choose those if you want estradiol and total estrogen alongside this result.
What to expect
- 1 Book instantly
Click, book, done. Choose a convenient lab location near you. Transparent, up-front pricing.
- 2 Quick lab visit
Testing to fit your busy schedule, usually 15 minutes or less. Walk-in and appointments available.
- 3 Typical results in 4-5 days
Your results post straight to your dashboard as soon as the lab completes them.
- 4 Expert guidance
Included with Mito membership. A clinician reviews your results and your personalized action plan follows, with clear next steps.
Everything your health needs,
in one membership
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Every test at our cost
Members pay our cost on every test, with lab fees passed straight through. The full receipt is itemized, never padded.
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Continuous tracking, all in one place
Upload past labs and watch your trends over time. Every marker and visit lives in one longitudinal record, so all your care stays together.
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Year-round clinician support
Text anytime and get clinician-reviewed answers. When you want to go deeper, 1:1 consultations are available at affordable rates.
All for $9/month
Order any test or consult without joining. For $9/month, members unlock member prices, trend tracking, and year-round clinician guidance.
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$9 /mo
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Without membership
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Frequently asked questions
View all FAQsHow does pricing work?
Every test shows the member price next to the standard non-member price, so you can see what membership saves you. The member price is our cost — covering the lab and what it takes to run the service — never a profit on the test itself; Mito makes its money on the $9 membership, not on marking up your tests. Membership is $9/mo, and you still pay the lab’s order fee. Prices are itemized before you pay, with no hidden fees.
Where do I get tested?
Choose a partner lab (Quest, Labcorp, or BioReference) at checkout. If your cart spans multiple tests, we consolidate the whole order onto a single lab so you only make one visit.
Is this eligible for HSA/FSA?
Yes. This test is HSA/FSA eligible, and you can pay with your HSA/FSA card at checkout.
When will I get my results?
Your results post to your dashboard once your lab completes them, then a clinician reviews them and your full analysis and personalized action plan (with clear next steps) follow. Turnaround varies by test: specialty assays and at-home kits take longer, and each test shows its expected turnaround before you buy.
Do I need a doctor’s order?
No. Mito provides the lab order for you, so you can book and get tested without a separate doctor visit.
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