Baby shampoo and listerine: surprising weapons against COVID?

NCT ID NCT04802408

First seen Nov 01, 2025 · Last updated May 16, 2026 · Updated 31 times

Summary

This study tests whether using a 4-day routine of nasal washes with diluted baby shampoo and gargling with Listerine can lower the amount of COVID-19 virus in the nose and mouth of recently infected adults aged 18-65. Participants are randomly assigned to different wash combinations, and their viral load is measured over five days. The goal is to find a safe, easy way to reduce virus levels and potentially limit spread.

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Contacts and locations

Locations

  • Penn State

    State College, Pennsylvania, 16801, United States

  • Penn State Health Milton S. Hershey Medical Center

    Hershey, Pennsylvania, 17033, United States

Conditions

Explore the condition pages connected to this study.