---
title: "Biotin (Vitamin B7) Test: What It Measures"
description: "It measures biotin (vitamin B7) in your blood to assess deficiency or excess and guide next steps, with easy ordering through Vitals Vault labs."
canonical: "https://www.vitalsvault.com/biomarkers/biotin-vitamin-b7"
last-updated: 2026-08-22
---

# Biotin (Vitamin B7) Test: What It Measures

> It measures biotin (vitamin B7) in your blood to assess deficiency or excess and guide next steps, with easy ordering through Vitals Vault labs.

---

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