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Progesterone Therapy for Menopause

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Editor's pick · Reviewed October 2026
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Progesterone Therapy: what to know

Updated August 2026 · Checked by our editors

The role of progesterone in menopause HRT

Progesterone is the often-forgotten half of hormone replacement. For women with a uterus it is essential, because it shields the womb lining from the over-stimulation estrogen alone can cause. Beyond that, it has its own benefits for mood, sleep and anxiety that make it worthwhile independently of estrogen.

Bioidentical versus synthetic progesterone

  • ›Micronised progesterone (e.g. Prometrium): Bioidentical, chemically identical to the progesterone your body used to make. It converts to allopregnanolone, which calms and promotes sleep, and current menopause guidelines prefer it.
  • ›Synthetic progestins (e.g. medroxyprogesterone): Used in older HRT combinations. They do not convert to allopregnanolone, some women report mood side effects, and the risk profile differs slightly from micronised progesterone.
  • ›Compounded progesterone cream: Applied to the skin and used by platforms such as Inner Balance. It allows personalised dosing and avoids swallowing a capsule, although absorption can vary.

What progesterone adds to menopause HRT

  • Protects the womb lining from estrogen-driven overgrowth
  • Improves how well and how deeply you sleep (via allopregnanolone)
  • Reduces anxiety and promotes calm
  • Supports steadier mood alongside estrogen
  • Completes a bioidentical HRT protocol
  • Bioidentical forms have a better safety profile than synthetic progestins

Inner Balance's approach to progesterone

Inner Balance uses a compounded cream-based approach that delivers estrogen and progesterone through the skin in a personalised ratio. This avoids oral dosing, gives consistent delivery and allows fine adjustments. Its ongoing-support model means you can reach hormone experts as your needs change.

How we ranked these providers

Our editorial team evaluates each provider across weighted criteria:

35%Bioidentical progesterone access: Availability of micronised or compounded bioidentical progesterone
25%Combined HRT expertise: Experience balancing estrogen and progesterone in one protocol
20%Personalisation: Ability to tailor progesterone dose and form to the individual
20%Ongoing monitoring: Regular follow-up to adjust hormone balance over time

Why progesterone is prescribed

In women with a uterus, progesterone (or a progestin) is prescribed with systemic estrogen to protect the womb lining. Without it, estrogen can make the lining overgrow and raises the risk of endometrial cancer. Beyond protection, micronised progesterone has a sedative effect through its metabolite allopregnanolone, so many women find that taking it at night helps them fall and stay asleep.

Micronised progesterone versus synthetic progestins

Micronised progesterone has the same structure as the hormone the ovaries make and comes as an FDA-approved capsule. Synthetic progestins such as medroxyprogesterone acetate are structurally different and have been linked to a less favourable breast and cardiovascular profile in some studies. Current guidance generally prefers micronised progesterone where it suits, though the best choice depends on the individual.

Typical doses are 100 mg nightly for continuous combined therapy or 200 mg for 12 to 14 days each month for cyclical regimens. Dizziness or drowsiness is common in the first weeks, which is another reason bedtime dosing is preferred.

What to expect and when to call your provider

Expect some irregular spotting during the first three to six months on a continuous regimen. Bleeding that becomes heavy, bleeding after a long spell with none, or persistent pelvic pain should be assessed. If you have a peanut allergy, note that standard micronised progesterone capsules are made in peanut oil and you will need an alternative.

This guide is general information, not medical advice. Talk to a licensed clinician about your own symptoms and history before starting any treatment.

Related symptom guides

Menopause symptoms seldom come singly. These guides cover the ones most often reported alongside progesterone therapy.

Browse every guide in the complete symptom index, or read our complete guide to menopause care and HRT.

Frequently asked questions

Common questions about progesterone therapy and HRT.

Who needs progesterone with HRT?

Any woman with a uterus who takes systemic estrogen should also take progesterone or a progestin to protect the womb lining. Women who have had a hysterectomy can take estrogen alone. Some women also choose progesterone for its mood and sleep benefits even when it is not strictly required.

Is progesterone cream as effective as the capsule?

Compounded progesterone cream can work when formulated and dosed correctly, but absorption is less predictable than oral micronised progesterone (Prometrium). Some women prefer cream to avoid oral medication. Providers like Inner Balance specialise in transdermal delivery and work with you to optimise results.

Is bioidentical progesterone safer than synthetic?

Current evidence suggests micronised progesterone has a better safety profile than synthetic progestins, particularly for cardiovascular and mood outcomes. The 2002 WHI study used medroxyprogesterone acetate, a synthetic progestin, not micronised progesterone, and many guidelines now recommend micronised progesterone when progesterone is indicated.

Can progesterone help me sleep during menopause?

Yes. Micronised progesterone is metabolised to allopregnanolone, which activates GABA receptors and has sedating, anti-anxiety effects. Many women report markedly better sleep after starting it, separate from any improvement in night sweats from estrogen.

References

This page draws on peer-reviewed research and guidance from recognised medical organisations. Sources were current at the last review date.

  1. 1.The Menopause Society (formerly NAMS). The 2022 Hormone Therapy Position Statement of The North American Menopause Society. Menopause. 2022;29(7):767-794.
  2. 2.American College of Obstetricians and Gynecologists (ACOG). Management of Menopausal Symptoms (Clinical Practice Guideline No. 8). Obstet Gynecol. 2023.
  3. 3.The Menopause Society. The 2023 Nonhormone Therapy Position Statement of The North American Menopause Society. Menopause. 2023;30(6):573-590.
  4. 4.The Menopause Society. The 2020 Genitourinary Syndrome of Menopause Position Statement of The North American Menopause Society. Menopause. 2020;27(9):976-992.
  5. 5.National Institute for Health and Care Excellence (NICE). Menopause: Identification and Management (NICE Guideline NG23). NICE. Updated 2024.
  6. 6.National Institute on Aging (NIH). Hormones and Menopause. U.S. National Institutes of Health.
  7. 7.Mayo Clinic Staff. Hormone Therapy: Is It Right for You?. Mayo Clinic.

Best HRT Providers is an independent information site and is not affiliated with the organisations cited above. Links are included so you can verify claims and read further. This content is not medical advice, so please consult a qualified clinician.

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