---
title: "Estrone (E1) Test: What It Measures & What Results Mean"
description: "It measures estrone (E1), an estrogen hormone, to help evaluate hormone balance and treatment effects, with easy ordering through Vitals Vault/Quest."
canonical: "https://www.vitalsvault.com/biomarkers/estrone"
last-updated: 2026-08-22
---

# Estrone (E1) Test: What It Measures & What Results Mean

> It measures estrone (E1), an estrogen hormone, to help evaluate hormone balance and treatment effects, with easy ordering through Vitals Vault/Quest.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/estrone
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