What is Estradiol?

The short answer

In the US, you need a prescription to get Estradiol.

What it is
Estradiol: Estrogen (not a peptide).
The main human estrogen, used as hormone replacement.
What people look into
Menopause

2 sources
Status as of October 4, 2026
How we source
Ellum doesn't sell peptides.

By Ellum EditorialUpdated October 4, 2026AI use

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What it is

Also known as: oestradiol, estrace, estradiol patch, climara, vivelle-dot, estradiol cypionate, estradiol valerate, estradiol cream, estradiol gel, divigel, vagifem, estring, bioidentical estrogen
How it works: The main human estrogen, used as hormone replacement.

Regulatory status

FDA-approved (Rx) How we label status

As of October 4, 2026, Estradiol is an FDA-approved prescription drug for menopausal vasomotor symptoms, vulvar/vaginal atrophy, hypoestrogenism.

See Estradiol in the Index →

Federal (FDA): Approved Rx (Climara NDA020375; Estrace ANDA086069; Depo-Estradiol ANDA085470; hundreds of products); label: menopausal vasomotor symptoms, vulvar/vaginal atrophy, hypoestrogenism. Boxed warning
503A compounding: Approved-drug component (not in any 503A category) (as of May 14, 2026)
WADA 2026: Not named

References

Sources as of October 4, 2026