03/17/2026
There is a lot of fear-based content circulating right now about oral progesterone... and I want to set the record straight. 🧬
Yes, oral micronized progesterone converts to allopregnanolone. That is actually a GOOD thing.
Allopregnanolone is neuroprotective. It supports your mood, your sleep, and your brain health. The research shows it may even help protect against Alzheimer's, not cause it.
The studies being cited to scare you? They used continuous IV infusions in mice for months at levels that never occur with normal oral dosing. That is not what happens when you take your progesterone at bedtime.
Here is what the evidence actually shows 👇
✅ Starting hormone therapy within 5 years of menopause may REDUCE Alzheimer's risk by 30 to 44%
✅ Micronized progesterone does NOT increase breast cancer risk (E3N cohort study)
✅ No increased blood clot risk
✅ No tolerance or receptor downregulation
✅ The dementia concerns you've seen? Those studies looked at synthetic progestins like Provera, not micronized progesterone
These are not the same thing. Formulation matters. Timing matters. Context matters.
Your hormone decisions deserve nuance, not fear. Save this post and share it with someone who needs it. 💛
womenshealth hormonetherapy brainhealth hrt helenstearnsdnp