---
title: "Does nicotine lower testosterone? What studies show"
description: "Evidence is mixed. Nicotine and smoking can shift testosterone and SHBG, but overall health effects can still harm hormones and, with clinician guidance."
canonical: "https://www.vitalsvault.com/treatment-learn/does-nicotine-increase-testosterone"
last-updated: 2026-08-22
---

# Does nicotine lower testosterone? What studies show

> Evidence is mixed. Nicotine and smoking can shift testosterone and SHBG, but overall health effects can still harm hormones and, with clinician guidance.

---

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