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Estradiol vaginal: what it changed, and what it did not

One intervention, every measured benefit and result that did not improve. See who it moved for, where it stayed neutral or went the other way, and the next hypothesis Phoenix can validate.

Phoenix APOE4 Research · Reviewed by Kevin Tran, APOE4/4 carrier and founder · Data through 2026-08-23 · How to read this research

How to read this

Observational research: real APOE4 carriers tracked over time, each compared with their own earlier self. Members chose their interventions, with no randomisation or placebo group. Everything else they changed is shown beside each result.

Read the full methods and limits

Key findings

Phoenix has measured Estradiol vaginal against 1 exact outcome for APOE4 carriers. Member #EFF528's HDL cholesterol moved from 53 to 79 mg/dL in 338 days.

Estradiol vaginal evidence by outcome
OutcomeDirectionWhat we observed
HDL cholesterolPositive individual resultMember #EFF528's HDL cholesterol moved from 53 to 79 mg/dL in 338 days.

Questions about Estradiol vaginal

What is the effect of Estradiol vaginal for APOE4 carriers?

Phoenix has measured Estradiol vaginal against 1 exact outcome for APOE4 carriers. Member #EFF528's HDL cholesterol moved from 53 to 79 mg/dL in 338 days.

Does Estradiol vaginal change HDL cholesterol for APOE4 carriers?

Member #EFF528's HDL cholesterol moved from 53 to 79 mg/dL in 338 days. Support: 1 logged members, 1 members with repeats, 1 observations, 2 measurements.

What changed for real APOE4 carriers?

Search by health goal or intervention to see what changed for real members, including results that moved the wrong way.

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Estradiol vaginal · 1 outcome shown.

Intervention categoryMedications
InterventionEstradiol vaginal

Estradiol vaginal

MedicationsOutcomes: 1

HDL cholesterol: Increase 26 mg/dL

Cases: 1

Details

Member #EFF528's HDL cholesterol moved from 53 to 79 mg/dL in 338 days.

Estradiol vaginal

✓Positive individual result

Member #EFF528's HDL cholesterol moved from 53 to 79 mg/dL in 338 days.

Selected member cases

  1. Phoenix memberAPOE3/451female

    HDL cholesterol

    Before53After79mg/dL+49.1%

    338 days between measurements

    Full stack credited: Estradiol vaginal (lead), Ezetimibe (undated).

    What else changed and what to test next

    What else changed: no nearby starts were recorded.

    Next study: repeat HDL cholesterol after a dated Estradiol vaginal window.

logged members
1
members with repeats
1
observations
1
measurements
2

Full record

The Beat the Odds Study

The 43-page study: what members tried, how their bloodwork and wearable results changed, and what else changed alongside them.

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