Estradiol (E2)
The primary estrogen marker, used to assess hormone balance, menstrual and menopausal status, and to monitor hormone therapy.
What it measures
Inside the Estradiol (E2)
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Estradiol (E2), the primary estrogen marker
Who it's for
Who should consider this
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Patients assessing hormone balance
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Anyone monitoring menstrual or menopausal status
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Members on hormone therapy
Good to know
Before you test
This is general clinical context — not medical advice. Your physician determines whether Estradiol (E2) is appropriate and interprets your results.
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Timing within the menstrual cycle affects interpretation
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Often paired with progesterone and testosterone
Related labs
More from the Hormones category
Testosterone, Total + Free
Measures both total and bioavailable (free) testosterone — the key markers for evaluating low-T symptoms and hormone optimization.
View lab arrow_outwardCycle & ovulationProgesterone
Helps evaluate ovulation, menstrual cycle health, and early-pregnancy hormone status, and to monitor hormone therapy.
View lab arrow_outwardAdrenal hormoneDHEA-Sulfate (DHEA-S)
An adrenal hormone marker used to evaluate adrenal function, hormone balance, and as part of an anti-aging or vitality workup.
View lab arrow_outwardNot sure if this panel is right for you?
A licensed Allora physician will review your goals, history, and symptoms before recommending any lab work.