RoseThere are several types of HRT for menopause, and understanding the difference between them genuinely matters — not just for managing symptoms, but for having an informed conversation with your doctor. The two hormones at the centre of most treatment decisions are estradiol and progesterone. Getting clear on what each one does, and why delivery method and formulation both matter, puts you in a much stronger position at that appointment.
Estrogen does most of the heavy lifting
Estradiol is the form of estrogen your ovaries produced during your reproductive years, and it's the active ingredient in most hormone therapy. It's what eases hot flashes, night sweats, sleep disruption, vaginal dryness, and mood changes. It's also what protects bone density. The evidence base for HRT is strong — for healthy women under 60, or within ten years of menopause, the benefits of estrogen therapy clearly outweigh the risks for most symptoms.
Estradiol comes in several forms: oral tablets, transdermal patches, gels, and sprays. Patches and gels deliver estrogen directly through the skin, which means it enters the bloodstream without first passing through the liver. This matters because oral estrogen can slightly increase clotting risk — a risk that appears much smaller, possibly negligible, with transdermal delivery. This isn't settled science in every detail, but the distinction is well-established enough that many prescribers now favour transdermal routes, particularly for women with additional cardiovascular considerations.
Progesterone is only needed with a uterus — but it's not a footnote
If you still have your uterus, you need progestogen alongside estrogen. Full stop. Estrogen alone thickens the uterine lining; progestogen prevents that from becoming a problem. This part of the prescription isn't optional, and it's not just a formality.
The word "progestogen" covers two different things. Synthetic progestogens — called progestins — were used in older hormone therapy formulations, including the 2002 Women's Health Initiative trial that frightened a generation of women and doctors away from HRT. That trial used a specific synthetic progestin, and the breast cancer signal it detected has not been replicated with body-identical progesterone. Micronised progesterone, which is molecularly identical to what your body produced, appears to carry a more favourable risk profile, though the long-term evidence is still accumulating. Most current prescribing guidelines now prefer micronised progesterone where available.
Women who have had a hysterectomy don't need progestogen at all. Estrogen alone is their treatment, which simplifies both the prescription and the risk calculation.
Bioidentical doesn't automatically mean safer or better
This is where things get genuinely confusing, and where some practitioners overstate the evidence. "Bioidentical" means the hormone is molecularly identical to what your body made — and by that definition, FDA-approved estradiol patches and micronised progesterone capsules are bioidentical. The term doesn't belong only to compounded preparations from specialty pharmacies.
Compounded bioidentical hormone replacement therapy (BHRT) involves custom-mixed formulations, often in creams or lozenges, tailored to an individual. The hormones themselves may work similarly to regulated products, but there's an important gap: we don't have large, long-term safety studies specifically on compounded formulations. Manufacturing standards vary between pharmacies in ways they don't for licensed medicines. That's not a reason to dismiss compounded BHRT outright, but it is a reason to be cautious of any practitioner who frames it as categorically safer than regulated HRT. The honest position is that we simply don't know enough yet.
When comparing types of HRT for menopause, regulated and compounded options can both be legitimate — but they don't carry equal evidence, and that difference should be part of your decision.
The 2002 study cast a long shadow, and it deserves context
Many women — and some GPs — are still making decisions based on alarm that spread from a 2002 study, without the context that followed. That trial used oral synthetic hormones, focused on older women (average age 63, well past the menopause transition), and its findings do not straightforwardly apply to a 50-year-old starting HRT within a few years of her last period.
Current understanding, reflected in guidance from NHS and other major health bodies, is that for healthy women under 60 or within ten years of menopause, the benefits of hormone therapy outweigh the risks for most women without specific contraindications. This is not a fringe position. It represents the consensus that emerged once the original data was properly reanalysed and followed up.
This history matters because it explains why so many women were undertreated for so long — and why getting the conversation right with your doctor now is worth the effort.
What to actually ask your doctor
Walking in knowing the different types of HRT for menopause changes the quality of that conversation. Here's what's worth raising:
- Transdermal versus oral: Ask whether a patch or gel might be more appropriate for you than tablets, particularly if you have any cardiovascular risk factors or a history of migraines.
- Which progestogen: If you have a uterus, ask specifically about micronised progesterone versus synthetic progestins, and what the prescriber's reasoning is.
- Your personal history: Blood clots, stroke, and certain hormone-sensitive cancers change the calculation significantly. Bring your family history too.
- Review frequency: Annual review is standard. Ask what that review will actually assess — symptom control, blood pressure, any new risk factors.
- Duration: There's no single right answer on how long to stay on HRT. Be honest about your symptoms and discuss the plan together.
If you're curious about compounded preparations specifically, ask for a clear-eyed account of what's known and what isn't — and be wary of certainty in either direction.
The types of HRT available for menopause have expanded meaningfully in recent years, and the evidence has shifted too. You don't have to accept either the old fear or uncritical enthusiasm. The goal is a decision that fits your symptoms, your history, and what you actually want from treatment — made with a practitioner who will revisit it with you over time.
Sources & further reading
Frequently Asked Questions
What symptoms does estradiol actually help with during menopause?
Estradiol — the form of estrogen your ovaries produced during your reproductive years — is what directly eases hot flashes, night sweats, sleep disruption, vaginal dryness, and mood changes. It also helps protect bone density, which is one reason HRT is considered for longer-term health, not just symptom relief. Most women notice improvement in these symptoms once they find the right dose and delivery method.
Does it matter whether you take estrogen as a patch, gel, or pill?
Yes, delivery method genuinely matters. Transdermal options like patches and gels deliver estrogen through the skin directly into the bloodstream, bypassing the liver — which appears to carry a smaller clotting risk than oral tablets, particularly for women with cardiovascular considerations. This distinction is well-established enough that many prescribers now favour transdermal routes, though research on long-term effects of newer delivery methods is still ongoing.
How strong is the evidence that HRT is safe and effective?
For healthy women under 60, or within ten years of menopause, the evidence that benefits outweigh risks is strong — RoseMyFriend rates the overall evidence for HRT as strong. The 2002 Women's Health Initiative study created decades of concern, but subsequent research clarified that timing and formulation matter significantly. What remains less settled is the optimal duration of treatment for individual women and the full long-term picture for newer delivery methods.
Do I really need to take progesterone alongside estrogen, and does the type matter?
If you have a uterus, adding a progestogen to estrogen is not optional — estrogen alone thickens the uterine lining in a way that needs to be managed. The type of progestogen does matter: older synthetic versions called progestins have a less favourable safety profile than body-identical micronised progesterone, though it's important to note that most of the long-term safety data comes from traditional formulations rather than newer bioidentical ones. Discussing which type is appropriate for you is a key part of the prescribing conversation.
When should I see a doctor about starting HRT, and what should I bring to the appointment?
You should see a doctor before starting any form of HRT, and it's especially important to discuss your personal and family medical history thoroughly — women with a history of blood clots, stroke, or certain hormone-sensitive cancers need specialist guidance rather than a standard prescription. Coming prepared with a clear list of your symptoms, their frequency, and any relevant family history will help your doctor tailor the conversation. Annual review is recommended once you start, so this isn't a one-time decision.