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Progesterone is the half of hormone therapy that gets forgotten, and if you have a uterus and take systemic estrogen, it is the half that protects the lining. Here is who needs it, why micronized progesterone is usually the form to ask for, how to get it prescribed online, what it costs, and the mistake that makes long-term estrogen genuinely unsafe.
Estrogen gets the attention. Progesterone is the half of hormone therapy that most women know least about, and it is the half doing a specific and non-optional job if you still have a uterus.
This covers who needs it, which form to ask for, how to get it prescribed online, what it costs, and the single mistake that turns hormone therapy from safe into genuinely risky.
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Estrogen stimulates the endometrium, the lining of the uterus. Left unopposed, that stimulation causes the lining to thicken over time, and sustained thickening raises the risk of endometrial hyperplasia and endometrial cancer.
Progesterone prevents that. It is not an optional add-on for symptom relief, it is the thing that makes long-term estrogen use appropriate. If you have a uterus and you are taking systemic estrogen, you need adequate progesterone. Any clinician prescribing estrogen alone to a woman with a uterus is making a serious error, and any intake that never asks whether you have a uterus is not screening properly.
If you have had a hysterectomy, you generally do not need it, and estrogen alone is standard.
One exception worth knowing: low-dose vaginal estrogen is absorbed minimally into the bloodstream, and women using it alone generally do not need progesterone for endometrial protection. That is one of several ways local treatment differs from systemic, covered in our guide on getting vaginal estrogen online.
Micronized progesterone is the form most menopause specialists reach for. It is body-identical, meaning structurally the same molecule your body produces, and it is available as an FDA-approved capsule. It is usually taken at night, because it commonly causes drowsiness, which is a genuine side benefit if menopause has wrecked your sleep.
Synthetic progestins are a different class of molecule with progesterone-like effects. They are effective for endometrial protection and are used in combined patches and pills, but the breast cancer signal in the older trial data came predominantly from a synthetic progestin rather than micronized progesterone. That distinction is one reason micronized is often preferred now.
A levonorgestrel IUD is a legitimate alternative that delivers progestin locally to the uterus. Convenient if you also want contraception in perimenopause, and worth asking about.
Compounded progesterone creams are the option to be most careful with. Absorption through skin is variable, and there is real doubt about whether topical creams achieve reliable endometrial protection. If you have a uterus and are taking systemic estrogen, this is not the place to accept an unpredictable dose.
A large number of women find micronized progesterone taken at bedtime improves their sleep noticeably, sometimes more than any other part of their regimen. If your main complaint is 3am waking, this is worth raising specifically, because timing and form matter for that effect.
It also means that if a clinician suggests moving your dose to the morning for some reason, you may lose a benefit you actually wanted. Say so.
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A minority of women feel genuinely bad on progesterone: low mood, bloating, irritability, breast tenderness. This is recognised, it is not you being difficult, and it does not mean hormone therapy is off the table.
The usual options are switching from a synthetic progestin to micronized progesterone, changing the schedule from continuous to cyclical or the reverse, lowering the dose within what still protects the endometrium, or moving to a levonorgestrel IUD so the progestin acts mostly locally. What you should not do is quietly stop taking it while continuing estrogen.
Almost every menopause telehealth platform prescribes progesterone, because they have to: they cannot responsibly prescribe systemic estrogen to a woman with a uterus without it. In practice it usually arrives as part of a combined plan rather than something you request separately.
What to check before you pay:
Taken cyclically, you may have a monthly bleed. Taken continuously, you may have irregular spotting for the first three to six months as the lining settles, which is common and usually not a concern. Bleeding that starts after a long settled period, or that is heavy, should be reported rather than waited out.
Drowsiness within an hour or two of the dose is expected with micronized progesterone and is the reason for taking it at night.
If you want to compare platforms on what they prescribe, what it costs as a complete regimen, and which states they serve, our ranked provider comparison lays it out, and our guide on getting estradiol prescribed online covers the other half of the plan.
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